BCBS Prefix – MAA to MZZ
| BCBS Company List | MAA to MZZ – List 2024 | BCBS Provider Phone Number |
|---|---|---|
| Wellmark BCBS of South Dakota/Iowa | MAA | (800)7743892 (800)5321537(FEPclaims) |
| Florida Blue | MAB | (800)955 5692 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MAC | Carefirst-Phone number full list |
| Premera BCBS of Alaska | MAD | (800)7224714 |
| Anthem BCBS of Indiana | MAE | Indiana-Phone number List |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MAF | Carefirst-Phone number full list |
| BCBS of New Mexico | MAG | (800)6930663 |
| Anthem BCBS of Virginia | MAH | (833)592 9956 |
| Wellmark BCBS of South Dakota/Iowa | MAI | (800)7743892 (800)5321537(FEPclaims) |
| Alpha Prefix not assigned or unallocated | MAJ | N/A |
| Anthem BCBS of Kentucky | MAK | Kentucky-Phone Number List |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MAL | Carefirst-Phone number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MAM | Carefirst-Phone number full list |
| Anthem BCBS of Maine | MAN | Maine-Phone number List |
| Florida Blue | MAO | (800)955 5692 |
| Anthem BCBS of Colorado | MAP | (800)282-4548 Colorado-Phone Numbers full List |
| Florida Blue | MAQ | (800)955 5692 |
| Anthem BCBS of Georgia | MAR | (800)676 2583 |
| Anthem BCBS of Georgia | MAS | (800)676 2583 |
| BCBS of Texas | MAT | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Wellmark BCBS of South Dakota/Iowa | MAU | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Ohio | MAV | Ohio-Phone Number List |
| Anthem BCBS of Connecticut | MAW | Connecticut-Contact Number List |
| BCBS of Illinois | MAX | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Nebraska | MAY | (800)635-0579 (888)5052022(MedicareAdvantageclaims) (800)2235584(FEPclaims) |
| Wellmark BCBS of South Dakota/Iowa | MAZ | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Ohio | MBA | Ohio-Phone Number List |
| Anthem BCBS of Colorado | MBB | (800)282-4548 Colorado-Phone Numbers full List |
| BCBS of Tennessee | MBC | (800)924 7141 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MBD | Carefirst-Phone number full list |
| BCBS of Nebraska | MBE | (800)635-0579 (888)5052022(MedicareAdvantageclaims) (800)2235584(FEPclaims) |
| Anthem BCBS of Georgia | MBF | (800)676 2583 |
| BCBS of Alabama | MBG | (205)220 6899 |
| BCBS of Alabama | MBH | (205)220 6899 |
| BCBS of Michigan | MBI | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | MBJ | (800)2530838 |
| Empire BCBS of New York | MBK | (800)9922583 |
| Anthem Bluecross of California | MBL | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of Illinois | MBM | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Michigan | MBN | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Florida Blue | MBO | (800)955 5692 |
| Anthem BCBS of Indiana | MBP | Indiana-Phone number List |
| Alpha Prefix not assigned or unallocated | MBQ | N/A |
| Anthem Bluecross of California | MBR | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MBS | Carefirst-Phone number full list |
| Anthem BCBS of Missouri | MBT | (888)571 9054 Missouri-Phone number full list |
| BCBS of Massachusetts | MBU | (800)4436657 BC-Bluecard:(800)6762583 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MBV | Carefirst-Phone number full list |
| Anthem BCBS of Ohio | MBW | Ohio-Phone Number List |
| BCBS of South Carolina | MBX | (800)868 2510 FEP:(888)930 2345 |
| BCBS of South Carolina | MBY | (800)868 2510 FEP:(888)930 2345 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MBZ | Carefirst-Phone number full list |
| Blueshield of California | MCA | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of Kansas City | MCB | (800)432 3990 FEP:(800)432 0379 |
| BCBS of Texas | MCC | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| BCBS of Illinois | MCD | (800)972 8088 Illinois-Phone Number full list |
| Premera BCBS of Alaska | MCE | (800)7224714 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MCF | Carefirst-Phone number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MCG | Carefirst-Phone number full list |
| Florida Blue | MCH | (800)955 5692 |
| Anthem BCBS of Georgia | MCI | (800)676 2583 |
| Highmark BCBS of West Virginia | MCJ | (800)5437822 (888)4594020 (Medicareadvantage claims) |
| Wellmark BCBS of South Dakota/Iowa | MCK | (800)7743892 (800)5321537(FEPclaims) |
| Wellmark BCBS of South Dakota/Iowa | MCL | (800)7743892 (800)5321537(FEPclaims) |
| Arkansas BCBS | MCM | (800)238 8379 Arkansas-Phone Number Full List |
| Wellmark BCBS of South Dakota/Iowa | MCN | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Virginia | MCO | (833)592 9956 |
| Alpha Prefix not assigned or unallocated | MCP | N/A |
| BCBS of Illinois | MCQ | (800)972 8088 Illinois-Phone Number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MCR | Carefirst-Phone number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MCS | Carefirst-Phone number full list |
| Wellmark BCBS of South Dakota/Iowa | MCT | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of North Carolina | MCU | (800)214 4844 Bluemedicare HMO and PPO Claims:(888)296 9790 |
| Wellmark BCBS of South Dakota/Iowa | MCV | (800)7743892 (800)5321537(FEPclaims) |
| Wellmark BCBS of South Dakota/Iowa | MCW | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Massachusetts | MCX | (800)4436657 BC-Bluecard:(800)6762583 |
| Anthem BCBS of Virginia | MCY | (833)592 9956 |
| Anthem BCBS of Indiana | MCZ | Indiana-Phone number List |
| BCBS of Michigan | MDA | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of South Carolina | MDB | (800)868 2510 FEP:(888)930 2345 |
| BCBS of Minnesota | MDC | (800)2620820 (651)6625000 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MDD | Carefirst-Phone number full list |
| Anthem Bluecross of California | MDE | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | MDF | Pennsylvania-Phone number full list |
| BCBS of Michigan | MDG | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Rhode Island | MDH | (800)230 9050 |
| Wellmark BCBS of South Dakota/Iowa | MDI | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Indiana | MDJ | Indiana-Phone number List |
| BCBS of North Carolina | MDK | (800)214 4844 Bluemedicare HMO and PPO Claims:(888)296 9790 |
| Alpha Prefix not assigned or unallocated | MDL | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MDM | Carefirst-Phone number full list |
| Anthem BCBS of Wisconsin | MDN | Wisconsin-Phone Number list |
| Alpha Prefix not assigned or unallocated | MDO | N/A |
| Blueshield of California | MDP | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of Minnesota | MDQ | (800)2620820 (651)6625000 |
| Anthem BCBS of Wisconsin | MDR | Wisconsin-Phone Number list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MDS | Carefirst-Phone number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MDT | Carefirst-Phone number full list |
| Wellmark BCBS of South Dakota/Iowa | MDU | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Louisiana | MDV | (800)4952583 Bluecard:(800)8102583 |
| Wellmark BCBS of South Dakota/Iowa | MDW | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Illinois | MDX | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Kansas City | MDY | (800)432 3990 FEP:(800)432 0379 |
| BCBS of Minnesota | MDZ | (800)2620820 (651)6625000 |
| Blueshield of California | MEA | (800)541 6652 (Blueshield) (800)468 9935 |
| Anthem BCBS of Maine | MEB | Maine-Phone number List |
| Anthem BCBS of Virginia | MEC | (833)592 9956 |
| Anthem BCBS of Indiana | MED | Indiana-Phone number List |
| Anthem BCBS of Virginia | MEE | (833)592 9956 |
| Alpha Prefix not assigned or unallocated | MEF | N/A |
| Anthem BCBS of Georgia | MEG | (800)676 2583 |
| Alpha Prefix not assigned or unallocated | MEH | N/A |
| BCBS of Michigan | MEI | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MEJ | Carefirst-Phone number full list |
| Blueshield of California | MEK | (800)541 6652 (Blueshield) (800)468 9935 |
| Wellmark BCBS of South Dakota/Iowa | MEL | (800)7743892 (800)5321537(FEPclaims) |
| Wellmark BCBS of South Dakota/Iowa | MEM | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Maine | MEN | Maine-Phone number List |
| Blueshield of California | MEO | (800)541 6652 (Blueshield) (800)468 9935 |
| Anthem BCBS of Maine | MEP | Maine-Phone number List |
| Blueshield of California | MEQ | (800)541 6652 (Blueshield) (800)468 9935 |
| Alpha Prefix not assigned or unallocated | MER | N/A |
| BCBS of Oklahoma | MES | (800)496 5774 FEP:(800)722 3130 |
| BCBS of Nebraska | MET | (800)635-0579 (888)5052022(MedicareAdvantageclaims) (800)2235584(FEPclaims) |
| BCBS of Texas | MEU | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Alpha Prefix not assigned or unallocated | MEV | N/A |
| Anthem BCBS of Maine | MEW | Maine-Phone number List |
| BCBS of New Mexico | MEX | (800)6930663 |
| Anthem BCBS of Maine | MEY | Maine-Phone number List |
| BCBS of New Mexico | MEZ | (800)6930663 |
| BCBS of Illinois | MFA | (800)972 8088 Illinois-Phone Number full list |
| Wellmark BCBS of South Dakota/Iowa | MFB | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Georgia | MFC | (800)676 2583 |
| Anthem BCBS of Georgia | MFD | (800)676 2583 |
| Anthem Bluecross of California | MFE | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | MFF | (800)2530838 |
| Anthem BCBS of Ohio | MFG | Ohio-Phone Number List |
| Anthem BCBS of Georgia | MFH | (800)676 2583 |
| Wellmark BCBS of South Dakota/Iowa | MFI | (800)7743892 (800)5321537(FEPclaims) |
| Alpha Prefix not assigned or unallocated | MFJ | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MFK | Carefirst-Phone number full list |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | MFL | Pennsylvania-Phone number full list |
| Anthem BCBS of Georgia | MFM | (800)676 2583 |
| Anthem BCBS of Virginia | MFN | (833)592 9956 |
| Alpha Prefix not assigned or unallocated | MFO | N/A |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | MFP | (800)2530838 |
| Anthem BCBS of Virginia | MFQ | (833)592 9956 |
| Alpha Prefix not assigned or unallocated | MFR | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MFS | Carefirst-Phone number full list |
| Alpha Prefix not assigned or unallocated | MFT | N/A |
| Wellmark BCBS of South Dakota/Iowa | MFU | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Illinois | MFV | (800)972 8088 Illinois-Phone Number full list |
| Anthem Bluecross of California | MFW | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of Michigan | MFX | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Minnesota | MFY | (800)2620820 (651)6625000 |
| BCBS of Illinois | MFZ | (800)972 8088 Illinois-Phone Number full list |
| Blueshield of California | MGA | (800)541 6652 (Blueshield) (800)468 9935 |
| Capital Bluecross of Pennsylvania | MGB | (800)8748433 |
| BCBS of Illinois | MGC | (800)972 8088 Illinois-Phone Number full list |
| Premera BCBS of Alaska | MGD | (800)7224714 |
| BCBS of Rhode Island | MGE | (800)230 9050 |
| Alpha Prefix not assigned or unallocated | MGF | N/A |
| Blueshield of California | MGG | (800)541 6652 (Blueshield) (800)468 9935 |
| Alpha Prefix not assigned or unallocated | MGH | N/A |
| Highmark BCBS of Pennsylvania | MGI | Highmark-Phone number full list |
| Anthem BCBS of Missouri | MGJ | (888)571 9054 Missouri-Phone number full list |
| Wellmark BCBS of South Dakota/Iowa | MGK | (800)7743892 (800)5321537(FEPclaims) |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | MGL | Pennsylvania-Phone number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MGM | Carefirst-Phone number full list |
| BCBS of South Carolina | MGN | (800)868 2510 FEP:(888)930 2345 |
| BCBS of Michigan | MGO | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Wellmark BCBS of South Dakota/Iowa | MGP | (800)7743892 (800)5321537(FEPclaims) |
| Alpha Prefix not assigned or unallocated | MGQ | N/A |
| BCBS of Michigan | MGR | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Anthem BCBS of Georgia | MGS | (800)676 2583 |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | MGT | (800)2530838 |
| Anthem BCBS of Virginia | MGU | (833)592 9956 |
| BCBS of South Carolina | MGV | (800)868 2510 FEP:(888)930 2345 |
| Arkansas BCBS | MGW | (800)238 8379 Arkansas-Phone Number Full List |
| Alpha Prefix not assigned or unallocated | MGX | N/A |
| Blueshield of California | MGY | (800)541 6652 (Blueshield) (800)468 9935 |
| Horizon BCBS of New Jersey | MGZ | (800)6241110 New Jersey-Phone number full list |
| BCBS of Kansas City | MHA | (800)432 3990 FEP:(800)432 0379 |
| BCBS of Texas | MHB | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Highmark BCBS of Pennsylvania | MHC | Highmark-Phone number full list |
| Alpha Prefix not assigned or unallocated | MHD | N/A |
| Alpha Prefix not assigned or unallocated | MHE | N/A |
| Alpha Prefix not assigned or unallocated | MHF | N/A |
| Anthem Bluecross of California | MHG | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of Michigan | MHH | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Anthem BCBS of Georgia | MHI | (800)676 2583 |
| Alpha Prefix not assigned or unallocated | MHJ | N/A |
| Wellmark BCBS of South Dakota/Iowa | MHK | (800)7743892 (800)5321537(FEPclaims) |
| Alpha Prefix not assigned or unallocated | MHL | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MHM | Carefirst-Phone number full list |
| Anthem BCBS of Ohio | MHN | Ohio-Phone Number List |
| Alpha Prefix not assigned or unallocated | MHO | N/A |
| Empire BCBS of New York | MHP | (800)9922583 |
| Anthem BCBS of Georgia | MHQ | (800)676 2583 |
| Anthem BCBS of Ohio | MHR | Ohio-Phone Number List |
| Anthem BCBS of Kentucky | MHS | Kentucky-Phone Number List |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MHT | Carefirst-Phone number full list |
| Alpha Prefix not assigned or unallocated | MHU | N/A |
| Alpha Prefix not assigned or unallocated | MHV | N/A |
| BCBS of Alabama | MHW | (205)220 6899 |
| Alpha Prefix not assigned or unallocated | MHX | N/A |
| Anthem Bluecross of California | MHY | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Wellmark BCBS of South Dakota/Iowa | MHZ | (800)7743892 (800)5321537(FEPclaims) |
| Blueshield of California | MIA | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of Minnesota | MIB | (800)2620820 (651)6625000 |
| BCBS of South Carolina | MIC | (800)868 2510 FEP:(888)930 2345 |
| Alpha Prefix not assigned or unallocated | MID | N/A |
| BCBS of Minnesota | MIE | (800)2620820 (651)6625000 |
| Anthem BCBS of Ohio | MIF | Ohio-Phone Number List |
| BCBS of Michigan | MIG | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Alpha Prefix not assigned or unallocated | MIH | N/A |
| BCBS of Kansas City | MII | (800)432 3990 FEP:(800)432 0379 |
| BCBS of Michigan | MIJ | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Alpha Prefix not assigned or unallocated | MIK | N/A |
| BCBS of Massachusetts | MIL | (800)4436657 BC-Bluecard:(800)6762583 |
| Highmark BCBS of Pennsylvania | MIM | Highmark-Phone number full list |
| Premera BCBS of Alaska | MIN | (800)7224714 |
| Blueshield of California | MIO | (800)541 6652 (Blueshield) (800)468 9935 |
| Bluecross of Idaho | MIP | (800)627 1188 FEPclaims:(800)627 6656 |
| Anthem BCBS of Ohio | MIQ | Ohio-Phone Number List |
| Alpha Prefix not assigned or unallocated | MIR | N/A |
| Anthem BCBS of Ohio | MIS | Ohio-Phone Number List |
| Wellmark BCBS of South Dakota/Iowa | MIT | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of South Carolina | MIU | (800)868 2510 FEP:(888)930 2345 |
| BCBS of Western New York | MIV | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| BCBS of Michigan | MIW | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Blueshield of California | MIX | (800)541 6652 (Blueshield) (800)468 9935 |
| Alpha Prefix not assigned or unallocated | MIY | N/A |
| Blueshield of California | MIZ | (800)541 6652 (Blueshield) (800)468 9935 |
| Alpha Prefix not assigned or unallocated | MJA | N/A |
| Anthem BCBS of Colorado | MJB | (800)282-4548 Colorado-Phone Numbers full List |
| BCBS of Texas | MJC | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| BCBS of Alabama | MJD | (205)220 6899 |
| BCBS of Michigan | MJE | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MJF | Carefirst-Phone number full list |
| Premera BCBS of Alaska | MJG | (800)7224714 |
| Anthem BCBS of Wisconsin | MJH | Wisconsin-Phone Number list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MJI | Carefirst-Phone number full list |
| BCBS of Michigan | MJJ | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MJK | Carefirst-Phone number full list |
| Anthem Bluecross of California | MJL | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Highmark BCBS of Pennsylvania | MJM | Highmark-Phone number full list |
| Highmark BCBS of Pennsylvania | MJN | Highmark-Phone number full list |
| Anthem BCBS of Connecticut | MJO | Connecticut-Contact Number List |
| Wellmark BCBS of South Dakota/Iowa | MJP | (800)7743892 (800)5321537(FEPclaims) |
| Anthem Bluecross of California | MJQ | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of Michigan | MJR | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Tennessee | MJS | (800)924 7141 |
| Anthem BCBS of Wisconsin | MJT | Wisconsin-Phone Number list |
| BCBS of Michigan | MJU | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Anthem BCBS of Wisconsin | MJV | Wisconsin-Phone Number list |
| Alpha Prefix not assigned or unallocated | MJW | N/A |
| BCBS of Michigan | MJX | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Alpha Prefix not assigned or unallocated | MJY | N/A |
| Alpha Prefix not assigned or unallocated | MJZ | N/A |
| Wellmark BCBS of South Dakota/Iowa | MKA | (800)7743892 (800)5321537(FEPclaims) |
| Blueshield of California | MKB | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of South Carolina | MKC | (800)868 2510 FEP:(888)930 2345 |
| BCBS of Massachusetts | MKD | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Tennessee | MKE | (800)924 7141 |
| Alpha Prefix not assigned or unallocated | MKF | N/A |
| Anthem BCBS of Ohio | MKG | Ohio-Phone Number List |
| BCBS of Tennessee | MKH | (800)924 7141 |
| BCBS of Tennessee | MKI | (800)924 7141 |
| Anthem BCBS of Ohio | MKJ | Ohio-Phone Number List |
| Anthem Bluecross of California | MKK | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of Mississippi | MKL | (800)2575825 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MKM | Carefirst-Phone number full list |
| Alpha Prefix not assigned or unallocated | MKN | N/A |
| BCBS of Michigan | MKO | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Michigan | MKP | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Alpha Prefix not assigned or unallocated | MKQ | N/A |
| BCBS of Illinois | MKR | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Massachusetts | MKS | (800)4436657 BC-Bluecard:(800)6762583 |
| Wellmark BCBS of South Dakota/Iowa | MKT | (800)7743892 (800)5321537(FEPclaims) |
| Premera BCBS of Alaska | MKU | (800)7224714 |
| Horizon BCBS of New Jersey | MKV | (800)6241110 New Jersey-Phone number full list |
| Wellmark BCBS of South Dakota/Iowa | MKW | (800)7743892 (800)5321537(FEPclaims) |
| Alpha Prefix not assigned or unallocated | MKX | N/A |
| Horizon BCBS of New Jersey | MKY | (800)6241110 New Jersey-Phone number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MKZ | Carefirst-Phone number full list |
| Wellmark BCBS of South Dakota/Iowa | MLA | (800)7743892 (800)5321537(FEPclaims) |
| Alpha Prefix not assigned or unallocated | MLB | N/A |
| Alpha Prefix not assigned or unallocated | MLC | N/A |
| Alpha Prefix not assigned or unallocated | MLD | N/A |
| BCBS of Illinois | MLE | (800)972 8088 Illinois-Phone Number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MLF | Carefirst-Phone number full list |
| Highmark BCBS of Pennsylvania | MLG | Highmark-Phone number full list |
| BCBS of South Carolina | MLH | (800)868 2510 FEP:(888)930 2345 |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | MLI | Pennsylvania-Phone number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MLJ | Carefirst-Phone number full list |
| Anthem BCBS of Virginia | MLK | (833)592 9956 |
| Blueshield of California | MLL | (800)541 6652 (Blueshield) (800)468 9935 |
| Highmark BCBS of Pennsylvania | MLM | Highmark-Phone number full list |
| Blueshield of California | MLN | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of Western New York | MLO | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| Anthem BCBS of Virginia | MLP | (833)592 9956 |
| BCBS of Minnesota | MLQ | (800)2620820 (651)6625000 |
| BCBS of Massachusetts | MLR | (800)4436657 BC-Bluecard:(800)6762583 |
| Alpha Prefix not assigned or unallocated | MLS | N/A |
| BCBS of Nebraska | MLT | (800)635-0579 (888)5052022(MedicareAdvantageclaims) (800)2235584(FEPclaims) |
| BCBS of Minnesota | MLU | (800)2620820 (651)6625000 |
| BCBS of Minnesota | MLV | (800)2620820 (651)6625000 |
| Alpha Prefix not assigned or unallocated | MLW | N/A |
| Bluecross of Idaho | MLX | (800)627 1188 FEPclaims:(800)627 6656 |
| Premera BCBS of Alaska | MLY | (800)7224714 |
| BCBS of Rhode Island | MLZ | (800)230 9050 |
| Empire BCBS of New York | MMA | (800)9922583 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MMB | Carefirst-Phone number full list |
| Anthem BCBS of Georgia | MMC | (800)676 2583 |
| Premera BCBS of Alaska | MMD | (800)7224714 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MME | Carefirst-Phone number full list |
| Excellus BCBS of New York | MMF | (800)920 8889 |
| BCBS of Mississippi | MMG | (800)2575825 |
| Empire BCBS of New York | MMH | (800)9922583 |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | MMI | Pennsylvania-Phone number full list |
| BCBS of Michigan | MMJ | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Illinois | MMK | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Illinois | MML | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Minnesota | MMM | (800)2620820 (651)6625000 |
| BCBS of Minnesota | MMN | (800)2620820 (651)6625000 |
| BCBS of Michigan | MMO | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Anthem BCBS of Georgia | MMP | (800)676 2583 |
| Anthem BCBS of Indiana | MMQ | Indiana-Phone number List |
| BCBS of Massachusetts | MMR | (800)4436657 BC-Bluecard:(800)6762583 |
| Anthem BCBS of Ohio | MMS | Ohio-Phone Number List |
| Blueshield of California | MMT | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of Illinois | MMU | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Ohio | MMV | Ohio-Phone Number List |
| BCBS of Illinois | MMW | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Alabama | MMX | (205)220 6899 |
| Anthem BCBS of Indiana | MMY | Indiana-Phone number List |
| Wellmark BCBS of South Dakota/Iowa | MMZ | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Minnesota | MNA | (800)2620820 (651)6625000 |
| BCBS of Massachusetts | MNB | (800)4436657 BC-Bluecard:(800)6762583 |
| Anthem Bluecross of California | MNC | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Anthem BCBS of Wisconsin | MND | Wisconsin-Phone Number list |
| Anthem BCBS of Wisconsin | MNE | Wisconsin-Phone Number list |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | MNF | Pennsylvania-Phone number full list |
| BCBS of Tennessee | MNG | (800)924 7141 |
| Anthem BCBS of Virginia | MNH | (833)592 9956 |
| Alpha Prefix not assigned or unallocated | MNI | N/A |
| Anthem BCBS of Ohio | MNJ | Ohio-Phone Number List |
| Anthem BCBS of Ohio | MNK | Ohio-Phone Number List |
| Alpha Prefix not assigned or unallocated | MNL | N/A |
| Alpha Prefix not assigned or unallocated | MNM | N/A |
| Highmark BCBS of Pennsylvania | MNN | Highmark-Phone number full list |
| Alpha Prefix not assigned or unallocated | MNO | N/A |
| Blueshield of California | MNP | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of Minnesota | MNQ | (800)2620820 (651)6625000 |
| BCBS of Minnesota | MNR | (800)2620820 (651)6625000 |
| Anthem BCBS of Kentucky | MNS | Kentucky-Phone Number List |
| BCBS of Illinois | MNT | (800)972 8088 Illinois-Phone Number full list |
| BCBS of North Carolina | MNU | (800)214 4844 Bluemedicare HMO and PPO Claims:(888)296 9790 |
| BCBS of South Carolina | MNV | (800)868 2510 FEP:(888)930 2345 |
| Premera BCBS of Alaska | MNW | (800)7224714 |
| BCBS of Illinois | MNX | (800)972 8088 Illinois-Phone Number full list |
| Premera Bluecross of Alaska | MNY | (800)7224714 |
| Wellmark BCBS of South Dakota/Iowa | MNZ | (800)7743892 (800)5321537(FEPclaims) |
| Alpha Prefix not assigned or unallocated | MOA | N/A |
| Alpha Prefix not assigned or unallocated | MOB | N/A |
| Anthem BCBS of Georgia | MOC | (800)676 2583 |
| BCBS of Massachusetts | MOD | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Illinois | MOE | (800)972 8088 Illinois-Phone Number full list |
| Blueshield of California | MOF | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of Western New York | MOG | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| Alpha Prefix not assigned or unallocated | MOH | N/A |
| BCBS of Massachusetts | MOI | (800)4436657 BC-Bluecard:(800)6762583 |
| Anthem BCBS of Ohio | MOJ | Ohio-Phone Number List |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | MOK | Pennsylvania-Phone number full list |
| Alpha Prefix not assigned or unallocated | MOL | N/A |
| Alpha Prefix not assigned or unallocated | MOM | N/A |
| Alpha Prefix not assigned or unallocated | MON | N/A |
| Alpha Prefix not assigned or unallocated | MOO | N/A |
| Alpha Prefix not assigned or unallocated | MOP | N/A |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | MOQ | Pennsylvania-Phone number full list |
| Premera BCBS of Alaska | MOR | (800)7224714 |
| Blueshield of California | MOS | (800)541 6652 (Blueshield) (800)468 9935 |
| Alpha Prefix not assigned or unallocated | MOT | N/A |
| BCBS of Michigan | MOU | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Arkansas BCBS | MOV | (800)238 8379 Arkansas-Phone Number Full List |
| Anthem BCBS of Kentucky | MOW | Kentucky-Phone Number List |
| Alpha Prefix not assigned or unallocated | MOX | N/A |
| Wellmark BCBS of South Dakota/Iowa | MOY | (800)7743892 (800)5321537(FEPclaims) |
| Alpha Prefix not assigned or unallocated | MOZ | N/A |
| Anthem BCBS of Ohio | MPA | Ohio-Phone Number List |
| Anthem BCBS of Georgia | MPB | (800)676 2583 |
| BCBS of Rhode Island | MPC | (800)230 9050 |
| BCBS of Texas | MPD | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| BCBS of Michigan | MPE | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Excellus BCBS of New York | MPF | (800)920 8889 |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | MPG | Pennsylvania-Phone number full list |
| Empire BCBS of New York | MPH | (800)9922583 |
| Anthem Bluecross of California | MPI | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of South Carolina | MPJ | (800)868 2510 FEP:(888)930 2345 |
| Alpha Prefix not assigned or unallocated | MPK | N/A |
| BCBS of Illinois | MPL | (800)972 8088 Illinois-Phone Number full list |
| Blueshield of Northeastern New York | MPM | (800)444 4552 (800)429 9886(Bluecardclaims) |
| Wellmark BCBS of South Dakota/Iowa | MPN | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Alabama | MPO | (205)220 6899 |
| Anthem BCBS of Wisconsin | MPP | Wisconsin-Phone Number list |
| BCBS of Minnesota | MPQ | (800)2620820 (651)6625000 |
| Anthem Bluecross of California | MPR | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Anthem BCBS of Georgia | MPS | (800)676 2583 |
| BCBS of Minnesota | MPT | (800)2620820 (651)6625000 |
| Anthem BCBS of Ohio | MPU | Ohio-Phone Number List |
| Anthem BCBS of Georgia | MPV | (800)676 2583 |
| Anthem BCBS of Ohio | MPW | Ohio-Phone Number List |
| BCBS of Minnesota | MPX | (800)2620820 (651)6625000 |
| Florida Blue | MPY | (800)955 5692 |
| Alpha Prefix not assigned or unallocated | MPZ | N/A |
| BCBS of Michigan | MQA | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Alpha Prefix not assigned or unallocated | MQB | N/A |
| Alpha Prefix not assigned or unallocated | MQC | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MQD | Carefirst-Phone number full list |
| Anthem BCBS of Georgia | MQE | (800)676 2583 |
| Alpha Prefix not assigned or unallocated | MQF | N/A |
| Alpha Prefix not assigned or unallocated | MQG | N/A |
| BCBS of Michigan | MQH | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Wellmark BCBS of South Dakota/Iowa | MQI | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Michigan | MQJ | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Michigan | MQK | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Michigan | MQL | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Alpha Prefix not assigned or unallocated | MQM | N/A |
| Alpha Prefix not assigned or unallocated | MQN | N/A |
| BCBS of Michigan | MQO | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Alpha Prefix not assigned or unallocated | MQP | N/A |
| Bluecross of Idaho | MQQ | (800)627 1188 FEPclaims:(800)627 6656 |
| Highmark BCBS of Pennsylvania | MQR | Highmark-Phone number full list |
| Alpha Prefix not assigned or unallocated | MQS | N/A |
| Alpha Prefix not assigned or unallocated | MQT | N/A |
| Anthem BCBS of Wisconsin | MQU | Wisconsin-Phone Number list |
| BCBS of Nebraska | MQV | (800)635-0579 (888)5052022(MedicareAdvantageclaims) (800)2235584(FEPclaims) |
| BCBS of Michigan | MQW | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Anthem Bluecross of California | MQX | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Alpha Prefix not assigned or unallocated | MQY | N/A |
| Anthem Bluecross of California | MQZ | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Alpha Prefix not assigned or unallocated | MRA | N/A |
| Alpha Prefix not assigned or unallocated | MRB | N/A |
| BCBS of Illinois | MRC | (800)972 8088 Illinois-Phone Number full list |
| Alpha Prefix not assigned or unallocated | MRD | N/A |
| Wellmark BCBS of South Dakota/Iowa | MRE | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Michigan | MRF | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Illinois | MRG | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Wisconsin | MRH | Wisconsin-Phone Number list |
| Alpha Prefix not assigned or unallocated | MRI | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MRJ | Carefirst-Phone number full list |
| BCBS of Massachusetts | MRK | (800)4436657 BC-Bluecard:(800)6762583 |
| Wellmark BCBS of South Dakota/Iowa | MRL | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Kansas City | MRM | (800)432 3990 FEP:(800)432 0379 |
| Anthem BCBS of Wisconsin | MRN | Wisconsin-Phone Number list |
| Alpha Prefix not assigned or unallocated | MRO | N/A |
| Anthem BCBS of Wisconsin | MRP | Wisconsin-Phone Number list |
| Anthem BCBS of Ohio | MRQ | Ohio-Phone Number List |
| BCBS of Minnesota | MRR | (800)2620820 (651)6625000 |
| Wellmark BCBS of South Dakota/Iowa | MRS | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Texas | MRT | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Highmark BCBS of Pennsylvania | MRU | Highmark-Phone number full list |
| Anthem Bluecross of California | MRV | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of Illinois | MRW | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Wisconsin | MRX | Wisconsin-Phone Number list |
| BCBS of Alabama | MRY | (205)220 6899 |
| BCBS of Illinois | MRZ | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Alabama | MSA | (205)220 6899 |
| Wellmark BCBS of South Dakota/Iowa | MSB | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Alabama | MSC | (205)220 6899 |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | MSD | Pennsylvania-Phone number full list |
| BCBS of Michigan | MSE | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Empire BCBS of New York | MSF | (800)9922583 |
| BCBS of Michigan | MSG | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Michigan | MSH | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | MSI | (800)2530838 |
| Premera BCBS of Alaska | MSJ | (800)7224714 |
| BCBS of Massachusetts | MSK | (800)4436657 BC-Bluecard:(800)6762583 |
| Alpha Prefix not assigned or unallocated | MSL | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MSM | Carefirst-Phone number full list |
| Anthem BCBS of Ohio | MSN | Ohio-Phone Number List |
| Alpha Prefix not assigned or unallocated | MSO | N/A |
| Premera BCBS of Alaska | MSP | (800)7224714 |
| Premera BCBS of Alaska | MSQ | (800)7224714 |
| BCBS of Michigan | MSR | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| Anthem BCBS of Virginia | MSS | (833)592 9956 |
| Premera BCBS of Alaska | MST | (800)7224714 |
| Anthem BCBS of Ohio | MSU | Ohio-Phone Number List |
| BCBS of Alabama | MSV | (205)220 6899 |
| BCBS of Illinois | MSW | (800)972 8088 Illinois-Phone Number full list |
| Alpha Prefix not assigned or unallocated | MSX | N/A |
| BCBS of North Carolina | MSY | (800)214 4844 Bluemedicare HMO and PPO Claims:(888)296 9790 |
| Anthem Bluecross of California | MSZ | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Anthem BCBS of Virginia | MTA | (833)592 9956 |
| Wellmark BCBS of South Dakota/Iowa | MTB | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Virginia | MTC | (833)592 9956 |
| Premera BCBS of Alaska | MTD | (800)7224714 |
| Blueshield of California | MTE | (800)541 6652 (Blueshield) (800)468 9935 |
| Anthem BCBS of Georgia | MTF | (800)676 2583 |
| Alpha Prefix not assigned or unallocated | MTG | N/A |
| Wellmark BCBS of South Dakota/Iowa | MTH | (800)7743892 (800)5321537(FEPclaims) |
| Blueshield of California | MTI | (800)541 6652 (Blueshield) (800)468 9935 |
| Alpha Prefix not assigned or unallocated | MTJ | N/A |
| Alpha Prefix not assigned or unallocated | MTK | N/A |
| Alpha Prefix not assigned or unallocated | MTL | N/A |
| Alpha Prefix not assigned or unallocated | MTM | N/A |
| BCBS of Massachusetts | MTN | (800)4436657 BC-Bluecard:(800)6762583 |
| Blueshield of California | MTO | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of Massachusetts | MTP | (800)4436657 BC-Bluecard:(800)6762583 |
| Alpha Prefix not assigned or unallocated | MTQ | N/A |
| BCBS of Tennessee | MTR | (800)924 7141 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MTS | Carefirst-Phone number full list |
| Blueshield of California | MTT | (800)541 6652 (Blueshield) (800)468 9935 |
| Premera Bluecross of Alaska | MTU | (800)7224714 |
| Anthem BCBS of Indiana | MTV | Indiana-Phone number List |
| Anthem BCBS of Ohio | MTW | Ohio-Phone Number List |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MTX | Carefirst-Phone number full list |
| Anthem Bluecross of California | MTY | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of Illinois | MTZ | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Texas | MUA | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Anthem BCBS of Virginia | MUB | (833)592 9956 |
| Wellmark BCBS of South Dakota/Iowa | MUC | (800)7743892 (800)5321537(FEPclaims) |
| Wellmark BCBS of South Dakota/Iowa | MUD | (800)7743892 (800)5321537(FEPclaims) |
| Wellmark BCBS of South Dakota/Iowa | MUE | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Wisconsin | MUF | Wisconsin-Phone Number list |
| Arkansas BCBS | MUG | (800)238 8379 Arkansas-Phone Number Full List |
| Bluecross of Idaho | MUH | (800)627 1188 FEPclaims:(800)627 6656 |
| Alpha Prefix not assigned or unallocated | MUI | N/A |
| Anthem BCBS of Indiana | MUJ | Indiana-Phone number List |
| Anthem BCBS of Wisconsin | MUK | Wisconsin-Phone Number list |
| Alpha Prefix not assigned or unallocated | MUL | N/A |
| BCBS of Arizona | MUM | (800)232 2345 (800)446 8331(Medicare Advantage-MA) |
| BCBS of Illinois | MUN | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Wisconsin | MUO | Wisconsin-Phone Number list |
| BCBS of South Carolina | MUP | (800)868 2510 FEP:(888)930 2345 |
| Premera Bluecross of Alaska | MUQ | (800)7224714 |
| BCBS of Michigan | MUR | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Illinois | MUS | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Minnesota | MUT | (800)2620820 (651)6625000 |
| Alpha Prefix not assigned or unallocated | MUU | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MUV | Carefirst-Phone number full list |
| Highmark BCBS of Pennsylvania | MUW | Highmark-Phone number full list |
| Wellmark BCBS of South Dakota/Iowa | MUX | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Alabama | MUY | (205)220 6899 |
| BCBS of Michigan | MUZ | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Montana | MVA | Commercialclaims:(800)447-7828 Healthymontanakidsclaims:(855)258-3489 FederalEmployeeProgram claims:(800)634-3569 |
| BCBS of Vermont | MVB | (800)2472583 |
| Alpha Prefix not assigned or unallocated | MVC | N/A |
| Premera BCBS of Alaska | MVD | (800)7224714 |
| BCBS of Massachusetts | MVE | (800)4436657 BC-Bluecard:(800)6762583 |
| Empire BCBS of New York | MVF | (800)9922583 |
| BCBS of Minnesota | MVG | (800)2620820 (651)6625000 |
| Wellmark BCBS of South Dakota/Iowa | MVH | (800)7743892 (800)5321537(FEPclaims) |
| Alpha Prefix not assigned or unallocated | MVI | N/A |
| Blueshield of California | MVJ | (800)541 6652 (Blueshield) (800)468 9935 |
| Anthem BCBS of Georgia | MVK | (800)676 2583 |
| BCBS of Massachusetts | MVL | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Alabama | MVM | (205)220 6899 |
| Empire BCBS of New York | MVN | (800)9922583 |
| Bluecross of Idaho | MVO | (800)627 1188 FEPclaims:(800)627 6656 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MVP | Carefirst-Phone number full list |
| Bluecross of Idaho | MVQ | (800)627 1188 FEPclaims:(800)627 6656 |
| Highmark BCBS of Pennsylvania | MVR | Highmark-Phone number full list |
| Alpha Prefix not assigned or unallocated | MVS | N/A |
| BCBS of Minnesota | MVT | (800)2620820 (651)6625000 |
| Anthem BCBS of Indiana | MVU | Indiana-Phone number List |
| Wellmark BCBS of South Dakota/Iowa | MVV | (800)7743892 (800)5321537(FEPclaims) |
| Alpha Prefix not assigned or unallocated | MVW | N/A |
| BCBS of South Carolina | MVX | (800)868 2510 FEP:(888)930 2345 |
| Anthem BCBS of Ohio | MVY | Ohio-Phone Number List |
| BCBS of Texas | MVZ | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| BCBS of Illinois | MWA | (800)972 8088 Illinois-Phone Number full list |
| Alpha Prefix not assigned or unallocated | MWB | N/A |
| Alpha Prefix not assigned or unallocated | MWC | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MWD | Carefirst-Phone number full list |
| Anthem BCBS of Wisconsin | MWE | Wisconsin-Phone Number list |
| BCBS of Illinois | MWF | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Minnesota | MWG | (800)2620820 (651)6625000 |
| BCBS of Illinois | MWH | (800)972 8088 Illinois-Phone Number full list |
| Alpha Prefix not assigned or unallocated | MWI | N/A |
| Horizon BCBS of New Jersey | MWJ | (800)6241110 New Jersey-Phone number full list |
| Horizon BCBS of New Jersey | MWK | (800)6241110 New Jersey-Phone number full list |
| BCBS of Illinois | MWL | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Wisconsin | MWM | Wisconsin-Phone Number list |
| BCBS of Illinois | MWN | (800)972 8088 Illinois-Phone Number full list |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | MWO | Pennsylvania-Phone number full list |
| BCBS of Massachusetts | MWP | (800)4436657 BC-Bluecard:(800)6762583 |
| Alpha Prefix not assigned or unallocated | MWQ | N/A |
| BCBS of Kansas City | MWR | (800)432 3990 FEP:(800)432 0379 |
| Alpha Prefix not assigned or unallocated | MWS | N/A |
| Alpha Prefix not assigned or unallocated | MWT | N/A |
| Anthem BCBS of Wisconsin | MWU | Wisconsin-Phone Number list |
| Anthem BCBS of Wisconsin | MWV | Wisconsin-Phone Number list |
| Anthem BCBS of Nevada | MWW | Nevada-Phone Number List |
| BCBS of Alabama | MWX | (205)220 6899 |
| Alpha Prefix not assigned or unallocated | MWY | N/A |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | MWZ | Pennsylvania-Phone number full list |
| Anthem Bluecross of California | MXA | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Alpha Prefix not assigned or unallocated | MXB | N/A |
| Alpha Prefix not assigned or unallocated | MXC | N/A |
| BCBS of Texas | MXD | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| BCBS of Texas | MXE | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Empire BCBS of New York | MXF | (800)9922583 |
| Alpha Prefix not assigned or unallocated | MXG | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MXH | Carefirst-Phone number full list |
| Blueshield of California | MXI | (800)541 6652 (Blueshield) (800)468 9935 |
| Alpha Prefix not assigned or unallocated | MXJ | N/A |
| Capital Bluecross of Pennsylvania | MXK | (800)8748433 |
| Wellmark BCBS of South Dakota/Iowa | MXL | (800)7743892 (800)5321537(FEPclaims) |
| Wellmark BCBS of South Dakota/Iowa | MXM | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Massachusetts | MXN | (800)4436657 BC-Bluecard:(800)6762583 |
| Wellmark BCBS of South Dakota/Iowa | MXO | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Massachusetts | MXP | (800)4436657 BC-Bluecard:(800)6762583 |
| Empire BCBS of New York | MXQ | (800)9922583 |
| Anthem Bluecross of California | MXR | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Anthem BCBS of Georgia | MXS | (800)676 2583 |
| Alpha Prefix not assigned or unallocated | MXT | N/A |
| Anthem BCBS of Connecticut | MXU | Connecticut-Contact Number List |
| Bluecross of Idaho | MXV | (800)627 1188 FEPclaims:(800)627 6656 |
| Bluecross of Idaho | MXW | (800)627 1188 FEPclaims:(800)627 6656 |
| Alpha Prefix not assigned or unallocated | MXX | N/A |
| BCBS of Massachusetts | MXY | (800)4436657 BC-Bluecard:(800)6762583 |
| Premera BCBS of Alaska | MXZ | (800)7224714 |
| Alpha Prefix not assigned or unallocated | MYA | N/A |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | MYB | (800)2530838 |
| Alpha Prefix not assigned or unallocated | MYC | N/A |
| BCBS of Massachusetts | MYD | (800)4436657 BC-Bluecard:(800)6762583 |
| Anthem BCBS of Ohio | MYE | Ohio-Phone Number List |
| Empire BCBS of New York | MYF | (800)9922583 |
| Wellmark BCBS of South Dakota/Iowa | MYG | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Massachusetts | MYH | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Massachusetts | MYI | (800)4436657 BC-Bluecard:(800)6762583 |
| Alpha Prefix not assigned or unallocated | MYJ | N/A |
| BCBS of Massachusetts | MYK | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Massachusetts | MYL | (800)4436657 BC-Bluecard:(800)6762583 |
| Anthem BCBS of Ohio | MYM | Ohio-Phone Number List |
| Anthem BCBS of Ohio | MYN | Ohio-Phone Number List |
| Alpha Prefix not assigned or unallocated | MYO | N/A |
| Alpha Prefix not assigned or unallocated | MYP | N/A |
| BCBS of Massachusetts | MYQ | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Alabama | MYR | (205)220 6899 |
| BCBS of Massachusetts | MYS | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Michigan | MYT | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Massachusetts | MYU | (800)4436657 BC-Bluecard:(800)6762583 |
| Alpha Prefix not assigned or unallocated | MYV | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MYW | Carefirst-Phone number full list |
| BCBS of Oklahoma | MYX | (800)496 5774 FEP:(800)722 3130 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | MYY | Carefirst-Phone number full list |
| BCBS of Massachusetts | MYZ | (800)4436657 BC-Bluecard:(800)6762583 |
| Wellmark BCBS of South Dakota/Iowa | MZA | (800)7743892 (800)5321537(FEPclaims) |
| Highmark BCBS of Pennsylvania | MZB | Highmark-Phone number full list |
| BCBS of Rhode Island | MZC | (800)230 9050 |
| BCBS of Illinois | MZD | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Massachusetts | MZE | (800)4436657 BC-Bluecard:(800)6762583 |
| Alpha Prefix not assigned or unallocated | MZF | N/A |
| BCBS of Illinois | MZG | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Arizona | MZH | (800)232 2345 (800)446 8331(Medicare Advantage-MA) |
| Blueshield of California | MZI | (800)541 6652 (Blueshield) (800)468 9935 |
| Anthem BCBS of Wisconsin | MZJ | Wisconsin-Phone Number list |
| Anthem BCBS of Virginia | MZK | (833)592 9956 |
| BCBS of Alabama | MZL | (205)220 6899 |
| BCBS of Minnesota | MZM | (800)2620820 (651)6625000 |
| BCBS of North Carolina | MZN | (800)214 4844 Bluemedicare HMO and PPO Claims:(888)296 9790 |
| BCBS of Michigan | MZO | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Michigan | MZP | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Minnesota | MZQ | (800)2620820 (651)6625000 |
| BCBS of Minnesota | MZR | (800)2620820 (651)6625000 |
| Alpha Prefix not assigned or unallocated | MZS | N/A |
| BCBS of Minnesota | MZT | (800)2620820 (651)6625000 |
| Florida Blue | MZU | (800)955 5692 |
| Alpha Prefix not assigned or unallocated | MZV | N/A |
| BCBS of Minnesota | MZW | (800)2620820 (651)6625000 |
| BCBS of Minnesota | MZX | (800)2620820 (651)6625000 |
| BCBS of Michigan | MZY | Professionalclaims:(800)3448525 Hospitalclaims:(800)2495103 Visionclaims:(800)4824047 |
| BCBS of Minnesota | MZZ | (800)2620820 (651)6625000 |