Prefixes AAA to AZZ
| Prefix | Payer Name |
| AAA | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AAC | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AAJ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AAK | ANTHEM BLUE CROSS – CALIFORNIA |
| AAP | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AAQ | ANTHEM BCBS – OHIO |
| AAT | ANTHEM BLUE CROSS – CALIFORNIA |
| AAT | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AAU | BLUE SHIELD OF CALIFORNIA |
| AAX | ANTHEM BLUE CROSS – CALIFORNIA |
| AAZ | ANTHEM BLUE CROSS – CALIFORNIA |
| ABA | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ABB | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ABC | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ABD | BLUE SHIELD OF CALIFORNIA |
| ABF | HEALTHNOW NEW YORK INC – BUFFALO |
| ABG | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| ABH | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ABJ | BCBS – MINNESOTA |
| ABK | CAREFIRST BCBS – MARYLAND |
| ABN | ANTHEM BCBS – VIRGINIA |
| ABQ | BLUE CROSS – IDAHO – BOISE |
| ABR | CAREFIRST BCBS – MARYLAND |
| ABT | CAREFIRST BCBS – MARYLAND |
| ABV | ANTHEM BCBS – OHIO |
| ABW | ANTHEM BCBS – VIRGINIA |
| ABY | CAREFIRST BCBS – MARYLAND |
| ABZ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ACA | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ACC | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ACD | BCBS OF MICHIGAN |
| ACG | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ACH | WELLMARK OF IOWA/SOUTH DAKOTA |
| ACQ | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| ACR | ANTHEM BLUE CROSS – CALIFORNIA |
| ACU | ANTHEM BLUE CROSS – CALIFORNIA |
| ACV | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| ADA | ANTHEM BLUE CROSS – CALIFORNIA |
| ADD | ANTHEM BCBS – OHIO |
| ADE | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ADF | HEALTHNOW NEW YORK INC – BUFFALO |
| ADG | ANTHEM BCBS – OHIO |
| ADH | BLUE CROSS BLUE SHIELD OF DELAWARE |
| ADI | ANTHEM BLUE CROSS – CALIFORNIA |
| ADJ | ANTHEM BCBS – MISSOURI |
| ADM | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ADQ | INDEPENDENCE BLUE CROSS |
| ADS | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ADT | BCBS – MINNESOTA |
| ADW | CAREFIRST BCBS – MARYLAND |
| ADY | BCBS – SOUTH CAROLINA |
| AEA | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AEG | ANTHEM BCBS – OHIO |
| AEK | INDEPENDENCE BLUE CROSS |
| AEM | HIGHMARK INC |
| AEP | CAREFIRST BCBS – MARYLAND |
| AEQ | BCBS OF MICHIGAN |
| AES | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AET | ANTHEM BLUE CROSS – CALIFORNIA |
| AEV | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AEX | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AEY | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AEZ | WELLMARK OF IOWA/SOUTH DAKOTA |
| AFA | ANTHEM BCBS – VIRGINIA |
| AFF | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AFK | EMPIRE BCBS – NEW YORK |
| AFM | BCBS – MINNESOTA |
| AFO | BLUE ADVANTAGE ADMINS OF ARKANSAS |
| AFP | WELLPOINT HEALTH NETWORKS – INDIANA |
| AFQ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AFS | BLUE SHIELD OF CALIFORNIA |
| AFY | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AFZ | ANTHEM BLUE CROSS – CALIFORNIA |
| AGB | EXCELLUS BCBS – ROCHESTER – NY |
| AGC | BCBS – KANSAS CITY – MO |
| AGG | ANTHEM BCBS – OHIO |
| AGK | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AGL | PREMERA BLUE CROSS – SEATTLE WA |
| AGS | ANTHEM BLUE CROSS – CALIFORNIA |
| AGT | BLUE SHIELD OF CALIFORNIA |
| AGU | CAREFIRST BCBS – MARYLAND |
| AGV | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AGW | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AGY | BCBS – SOUTH CAROLINA |
| AHA | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AHB | ANTHEM BCBS – OHIO |
| AHC | ANTHEM BCBS – MISSOURI |
| AHD | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AHI | BCBS – RHODE ISLAND |
| AHJ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AHO | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AHW | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AIA | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AID | ANTHEM BCBS – OHIO |
| AIE | BCBS OF MICHIGAN |
| AIH | ANTHEM BLUE CROSS – CALIFORNIA |
| AII | BCBS – LOUISIANA |
| AIJ | EMPIRE BCBS – NEW YORK |
| AIK | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AIL | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AIR | CAPITAL BLUE CROSS – HARRISBURG PA |
| AIU | BCBS – LOUISIANA |
| AIW | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AIX | BLUE SHIELD OF CALIFORNIA |
| AIY | ANTHEM BLUE CROSS – CALIFORNIA |
| AIZ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AJC | BLUE SHIELD OF CALIFORNIA |
| AJE | BCBS – SOUTH CAROLINA |
| AJF | HIGHMARK INC |
| AJH | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AJI | BCBS – SOUTH CAROLINA |
| AJJ | PREMERA BLUE CROSS – SEATTLE WA |
| AJK | BLUE CROSS – IDAHO – BOISE |
| AJL | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AJO | ANTHEM BCBS – OHIO |
| AJS | ANTHEM BLUE CROSS – CALIFORNIA |
| AJU | BCBS – SOUTH CAROLINA |
| AJV | BCBS – SOUTH CAROLINA |
| AJW | PREMERA BLUE CROSS – SEATTLE WA |
| AJX | PREMERA BLUE CROSS – SEATTLE WA |
| AJY | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AKA | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AKD | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AKE | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AKF | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| AKG | CAREFIRST BCBS – MARYLAND |
| AKN | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AKO | ANTHEM BCBS – OHIO |
| AKP | ANTHEM BCBS – OHIO |
| AKQ | ANTHEM BCBS – OHIO |
| AKR | HEALTHNOW NEW YORK INC – BUFFALO |
| AKS | ANTHEM BCBS – OHIO |
| AKU | ANTHEM BCBS – OHIO |
| AKV | ANTHEM BCBS – OHIO |
| AKW | ARKANSAS BLUE CROSS AND BLUE SHIELD |
| AKY | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ALD | PREMERA BLUE CROSS – SEATTLE WA |
| ALG | ANTHEM BLUE CROSS – CALIFORNIA |
| ALH | ANTHEM BLUE CROSS – CALIFORNIA |
| ALI | ANTHEM BCBS – OHIO |
| ALJ | BCBS OF MICHIGAN |
| ALK | PREMERA BLUE CROSS – SEATTLE WA |
| ALL | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ALN | HIGHMARK INC |
| ALO | EXCELLUS BCBS – ROCHESTER – NY |
| ALP | ARKANSAS BLUE CROSS AND BLUE SHIELD |
| ALR | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ALV | PREMERA BLUE CROSS – SEATTLE WA |
| AMA | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AMB | ANTHEM BCBS – OHIO |
| AMC | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AMD | ANTHEM BCBS – OHIO |
| AMM | HIGHMARK INC |
| AMN | BLUE CROSS – IDAHO – BOISE |
| AMP | BLUE SHIELD OF CALIFORNIA |
| AMQ | ANTHEM BLUE CROSS – CALIFORNIA |
| AMR | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AMS | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AMU | BCBS – RHODE ISLAND |
| AMW | CAREFIRST BCBS – MARYLAND |
| AMZ | ANTHEM BCBS – OHIO |
| ANA | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ANE | REGENCE BLUESHIELD OF IDAHO-LEWISTO |
| ANH | WELLMARK OF IOWA/SOUTH DAKOTA |
| ANI | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ANJ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ANP | ANTHEM BCBS – OHIO |
| ANR | ANTHEM BCBS – VIRGINIA |
| ANS | BLUE SHIELD OF CALIFORNIA |
| ANU | BLUE SHIELD OF CALIFORNIA |
| ANY | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AOC | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AOF | WELLMARK OF IOWA/SOUTH DAKOTA |
| AOG | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AOI | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AOK | BLUE SHIELD OF CALIFORNIA |
| AOL | BLUE CROSS BLUE SHIELD OF DELAWARE |
| AOM | HIGHMARK INC |
| AON | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AOR | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AOU | HEALTHNOW NEW YORK INC – BUFFALO |
| AOV | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AOX | BLUE SHIELD OF CALIFORNIA |
| AOY | BLUE SHIELD OF CALIFORNIA |
| AOZ | ANTHEM BCBS – OHIO |
| APB | BLUE CROSS BLUE SHIELD OF DELAWARE |
| APD | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| APF | WELLMARK OF IOWA/SOUTH DAKOTA |
| APH | ANTHEM BCBS – OHIO |
| API | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| APM | HIGHMARK INC |
| APN | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| APO | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| APQ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| APT | BLUE CROSS BLUE SHIELD OF DELAWARE |
| APU | ANTHEM BCBS – OHIO |
| APV | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| APW | HEALTHNOW NEW YORK INC – BUFFALO |
| APY | ANTHEM BCBS – VIRGINIA |
| AQC | ANTHEM BCBS – OHIO |
| AQD | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AQE | BLUE CROSS – IDAHO – BOISE |
| AQF | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AQH | BLUE CROSS – IDAHO – BOISE |
| AQI | ANTHEM BCBS – OHIO |
| AQJ | PREMERA BLUE CROSS – SEATTLE WA |
| AQL | HIGHMARK INC |
| AQO | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AQP | BLUE CROSS – IDAHO – BOISE |
| AQQ | BCBS OF MICHIGAN |
| AQS | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AQV | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AQW | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AQY | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ARA | HEALTHNOW NEW YORK INC – BUFFALO |
| ARC | ANTHEM BCBS – OHIO |
| ARF | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ARG | ANTHEM BCBS – OHIO |
| ARH | WELLPOINT HEALTH NETWORKS-VIRGINIA |
| ARI | CAREFIRST BCBS – MARYLAND |
| ARM | ANTHEM BCBS – OHIO |
| ARN | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ARP | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ARR | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ARS | CAREFIRST BCBS – MARYLAND |
| ART | BCBS – MINNESOTA |
| ARU | ANTHEM BCBS – OHIO |
| ARV | CAREFIRST BCBS – MARYLAND |
| ARX | BCBS – KANSAS – TOPEKA |
| ASA | EXCELLUS BCBS – SYRACUSE – NY |
| ASB | EXCELLUS BCBS – ROCHESTER – NY |
| ASF | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ASG | EXCELLUS BCBS – ROCHESTER – NY |
| ASH | ANTHEM BCBS – OHIO |
| ASJ | ANTHEM BCBS – OHIO |
| ASM | ANTHEM BCBS – VIRGINIA |
| ASN | ANTHEM BCBS – VIRGINIA |
| ASO | EXCELLUS BCBS – ROCHESTER – NY |
| ASP | ANTHEM BCBS – VIRGINIA |
| AST | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ASZ | ANTHEM BCBS – MISSOURI |
| ATA | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ATG | ANTHEM BLUE CROSS – CALIFORNIA |
| ATH | ANTHEM BCBS – OHIO |
| ATI | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ATK | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ATL | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ATO | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ATP | WELLMARK OF IOWA/SOUTH DAKOTA |
| ATQ | BLUE SHIELD OF CALIFORNIA |
| ATU | BCBS – SOUTH CAROLINA |
| ATV | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ATX | ANTHEM BCBS – OHIO |
| ATY | BCBS – SOUTH CAROLINA |
| AUB | BCBS OF MICHIGAN |
| AUC | ANTHEM BCBS – OHIO |
| AUD | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AUG | BCBS OF MICHIGAN |
| AUJ | ANTHEM BCBS – WISCONSIN |
| AUP | BCBS OF MICHIGAN |
| AUQ | WELLPOINT HEALTH NETWORKS-WISCONSIN |
| AUS | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| AUU | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AUW | BLUE CROSS BLUE SHIELD OF DELAWARE |
| AVB | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AVC | BCBS – SOUTH CAROLINA |
| AVE | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AVF | ANTHEM BLUE CROSS – CALIFORNIA |
| AVH | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AVI | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AVM | CAREFIRST BCBS – MARYLAND |
| AVN | PREMERA BLUE CROSS – SEATTLE WA |
| AVO | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AVR | CAREFIRST BCBS – MARYLAND |
| AVS | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AVT | ANTHEM BLUE CROSS – CALIFORNIA |
| AVW | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AWA | HEALTHCARE ADMINISTRATORS – SEATTLE |
| AWB | PREMERA BLUE CROSS – SEATTLE WA |
| AWC | ANTHEM BCBS – VIRGINIA |
| AWE | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AWF | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AWI | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AWJ | PREMERA BLUE CROSS – SEATTLE WA |
| AWK | WELLMARK OF IOWA/SOUTH DAKOTA |
| AWL | ANTHEM BCBS – OHIO |
| AWM | HIGHMARK INC |
| AWO | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AWP | ANTHEM BCBS – VIRGINIA |
| AWQ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AWR | HIGHMARK INC |
| AWT | ANTHEM BCBS – OHIO |
| AWV | WELLPOINT HEALTH NETWORKS-VIRGINIA |
| AWX | ANTHEM BCBS – OHIO |
| AWZ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AXA | ANTHEM BCBS – OHIO |
| AXC | BCBS OF MICHIGAN |
| AXD | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AXH | WELLMARK OF IOWA/SOUTH DAKOTA |
| AXL | BCBS OF MICHIGAN |
| AXM | ANTHEM BLUE CROSS – CALIFORNIA |
| AXO | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AXP | ANTHEM BCBS – OHIO |
| AXR | ANTHEM BCBS – OHIO |
| AXS | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AXT | EXCELLUS BCBS – ROCHESTER – NY |
| AXU | ANTHEM BLUE CROSS – CALIFORNIA |
| AXW | BLUE CROSS BLUE SHIELD OF DELAWARE |
| AXX | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AXY | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AXZ | ANTHEM BCBS – VIRGINIA |
| AYC | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AYE | WELLMARK OF IOWA/SOUTH DAKOTA |
| AYF | HIGHMARK INC |
| AYG | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AYH | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AYI | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AYJ | BLUE CROSS – IDAHO – BOISE |
| AYL | ANTHEM BCBS – OHIO |
| AYM | HIGHMARK INC |
| AYN | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AYR | HIGHMARK INC |
| AYS | PREMERA BLUE CROSS – SEATTLE WA |
| AYW | HEALTHNOW NEW YORK INC – BUFFALO |
| AZA | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZB | ANTHEM BCBS – OHIO |
| AZC | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZD | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZF | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZG | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZH | BCBS – SOUTH CAROLINA |
| AZI | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AZJ | ANTHEM BCBS – OHIO |
| AZL | BLUE SHIELD OF CALIFORNIA |
| AZO | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZP | CAREFIRST BCBS – MARYLAND |
| AZQ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZS | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZT | BLUE SHIELD OF CALIFORNIA |
| AZU | ANTHEM BLUE CROSS – CALIFORNIA |
| AZV | ANTHEM BLUE CROSS – CALIFORNIA |
| AZW | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AZY | BLUE SHIELD OF CALIFORNIA |
| AZZ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
Prefixes AAA to AZZ
| Prefix | Payer Name |
| AAA | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AAC | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AAJ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AAK | ANTHEM BLUE CROSS – CALIFORNIA |
| AAP | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AAQ | ANTHEM BCBS – OHIO |
| AAT | ANTHEM BLUE CROSS – CALIFORNIA |
| AAT | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AAU | BLUE SHIELD OF CALIFORNIA |
| AAX | ANTHEM BLUE CROSS – CALIFORNIA |
| AAZ | ANTHEM BLUE CROSS – CALIFORNIA |
| ABA | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ABB | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ABC | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ABD | BLUE SHIELD OF CALIFORNIA |
| ABF | HEALTHNOW NEW YORK INC – BUFFALO |
| ABG | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| ABH | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ABJ | BCBS – MINNESOTA |
| ABK | CAREFIRST BCBS – MARYLAND |
| ABN | ANTHEM BCBS – VIRGINIA |
| ABQ | BLUE CROSS – IDAHO – BOISE |
| ABR | CAREFIRST BCBS – MARYLAND |
| ABT | CAREFIRST BCBS – MARYLAND |
| ABV | ANTHEM BCBS – OHIO |
| ABW | ANTHEM BCBS – VIRGINIA |
| ABY | CAREFIRST BCBS – MARYLAND |
| ABZ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ACA | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ACC | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ACD | BCBS OF MICHIGAN |
| ACG | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ACH | WELLMARK OF IOWA/SOUTH DAKOTA |
| ACQ | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| ACR | ANTHEM BLUE CROSS – CALIFORNIA |
| ACU | ANTHEM BLUE CROSS – CALIFORNIA |
| ACV | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| ADA | ANTHEM BLUE CROSS – CALIFORNIA |
| ADD | ANTHEM BCBS – OHIO |
| ADE | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ADF | HEALTHNOW NEW YORK INC – BUFFALO |
| ADG | ANTHEM BCBS – OHIO |
| ADH | BLUE CROSS BLUE SHIELD OF DELAWARE |
| ADI | ANTHEM BLUE CROSS – CALIFORNIA |
| ADJ | ANTHEM BCBS – MISSOURI |
| ADM | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ADQ | INDEPENDENCE BLUE CROSS |
| ADS | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ADT | BCBS – MINNESOTA |
| ADW | CAREFIRST BCBS – MARYLAND |
| ADY | BCBS – SOUTH CAROLINA |
| AEA | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AEG | ANTHEM BCBS – OHIO |
| AEK | INDEPENDENCE BLUE CROSS |
| AEM | HIGHMARK INC |
| AEP | CAREFIRST BCBS – MARYLAND |
| AEQ | BCBS OF MICHIGAN |
| AES | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AET | ANTHEM BLUE CROSS – CALIFORNIA |
| AEV | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AEX | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AEY | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AEZ | WELLMARK OF IOWA/SOUTH DAKOTA |
| AFA | ANTHEM BCBS – VIRGINIA |
| AFF | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AFK | EMPIRE BCBS – NEW YORK |
| AFM | BCBS – MINNESOTA |
| AFO | BLUE ADVANTAGE ADMINS OF ARKANSAS |
| AFP | WELLPOINT HEALTH NETWORKS – INDIANA |
| AFQ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AFS | BLUE SHIELD OF CALIFORNIA |
| AFY | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AFZ | ANTHEM BLUE CROSS – CALIFORNIA |
| AGB | EXCELLUS BCBS – ROCHESTER – NY |
| AGC | BCBS – KANSAS CITY – MO |
| AGG | ANTHEM BCBS – OHIO |
| AGK | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AGL | PREMERA BLUE CROSS – SEATTLE WA |
| AGS | ANTHEM BLUE CROSS – CALIFORNIA |
| AGT | BLUE SHIELD OF CALIFORNIA |
| AGU | CAREFIRST BCBS – MARYLAND |
| AGV | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AGW | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AGY | BCBS – SOUTH CAROLINA |
| AHA | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AHB | ANTHEM BCBS – OHIO |
| AHC | ANTHEM BCBS – MISSOURI |
| AHD | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AHI | BCBS – RHODE ISLAND |
| AHJ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AHO | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AHW | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AIA | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AID | ANTHEM BCBS – OHIO |
| AIE | BCBS OF MICHIGAN |
| AIH | ANTHEM BLUE CROSS – CALIFORNIA |
| AII | BCBS – LOUISIANA |
| AIJ | EMPIRE BCBS – NEW YORK |
| AIK | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AIL | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AIR | CAPITAL BLUE CROSS – HARRISBURG PA |
| AIU | BCBS – LOUISIANA |
| AIW | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AIX | BLUE SHIELD OF CALIFORNIA |
| AIY | ANTHEM BLUE CROSS – CALIFORNIA |
| AIZ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AJC | BLUE SHIELD OF CALIFORNIA |
| AJE | BCBS – SOUTH CAROLINA |
| AJF | HIGHMARK INC |
| AJH | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AJI | BCBS – SOUTH CAROLINA |
| AJJ | PREMERA BLUE CROSS – SEATTLE WA |
| AJK | BLUE CROSS – IDAHO – BOISE |
| AJL | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AJO | ANTHEM BCBS – OHIO |
| AJS | ANTHEM BLUE CROSS – CALIFORNIA |
| AJU | BCBS – SOUTH CAROLINA |
| AJV | BCBS – SOUTH CAROLINA |
| AJW | PREMERA BLUE CROSS – SEATTLE WA |
| AJX | PREMERA BLUE CROSS – SEATTLE WA |
| AJY | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AKA | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AKD | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AKE | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AKF | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| AKG | CAREFIRST BCBS – MARYLAND |
| AKN | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AKO | ANTHEM BCBS – OHIO |
| AKP | ANTHEM BCBS – OHIO |
| AKQ | ANTHEM BCBS – OHIO |
| AKR | HEALTHNOW NEW YORK INC – BUFFALO |
| AKS | ANTHEM BCBS – OHIO |
| AKU | ANTHEM BCBS – OHIO |
| AKV | ANTHEM BCBS – OHIO |
| AKW | ARKANSAS BLUE CROSS AND BLUE SHIELD |
| AKY | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ALD | PREMERA BLUE CROSS – SEATTLE WA |
| ALG | ANTHEM BLUE CROSS – CALIFORNIA |
| ALH | ANTHEM BLUE CROSS – CALIFORNIA |
| ALI | ANTHEM BCBS – OHIO |
| ALJ | BCBS OF MICHIGAN |
| ALK | PREMERA BLUE CROSS – SEATTLE WA |
| ALL | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ALN | HIGHMARK INC |
| ALO | EXCELLUS BCBS – ROCHESTER – NY |
| ALP | ARKANSAS BLUE CROSS AND BLUE SHIELD |
| ALR | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ALV | PREMERA BLUE CROSS – SEATTLE WA |
| AMA | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AMB | ANTHEM BCBS – OHIO |
| AMC | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AMD | ANTHEM BCBS – OHIO |
| AMM | HIGHMARK INC |
| AMN | BLUE CROSS – IDAHO – BOISE |
| AMP | BLUE SHIELD OF CALIFORNIA |
| AMQ | ANTHEM BLUE CROSS – CALIFORNIA |
| AMR | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AMS | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AMU | BCBS – RHODE ISLAND |
| AMW | CAREFIRST BCBS – MARYLAND |
| AMZ | ANTHEM BCBS – OHIO |
| ANA | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ANE | REGENCE BLUESHIELD OF IDAHO-LEWISTO |
| ANH | WELLMARK OF IOWA/SOUTH DAKOTA |
| ANI | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ANJ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ANP | ANTHEM BCBS – OHIO |
| ANR | ANTHEM BCBS – VIRGINIA |
| ANS | BLUE SHIELD OF CALIFORNIA |
| ANU | BLUE SHIELD OF CALIFORNIA |
| ANY | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AOC | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AOF | WELLMARK OF IOWA/SOUTH DAKOTA |
| AOG | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AOI | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AOK | BLUE SHIELD OF CALIFORNIA |
| AOL | BLUE CROSS BLUE SHIELD OF DELAWARE |
| AOM | HIGHMARK INC |
| AON | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AOR | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AOU | HEALTHNOW NEW YORK INC – BUFFALO |
| AOV | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AOX | BLUE SHIELD OF CALIFORNIA |
| AOY | BLUE SHIELD OF CALIFORNIA |
| AOZ | ANTHEM BCBS – OHIO |
| APB | BLUE CROSS BLUE SHIELD OF DELAWARE |
| APD | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| APF | WELLMARK OF IOWA/SOUTH DAKOTA |
| APH | ANTHEM BCBS – OHIO |
| API | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| APM | HIGHMARK INC |
| APN | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| APO | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| APQ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| APT | BLUE CROSS BLUE SHIELD OF DELAWARE |
| APU | ANTHEM BCBS – OHIO |
| APV | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| APW | HEALTHNOW NEW YORK INC – BUFFALO |
| APY | ANTHEM BCBS – VIRGINIA |
| AQC | ANTHEM BCBS – OHIO |
| AQD | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AQE | BLUE CROSS – IDAHO – BOISE |
| AQF | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AQH | BLUE CROSS – IDAHO – BOISE |
| AQI | ANTHEM BCBS – OHIO |
| AQJ | PREMERA BLUE CROSS – SEATTLE WA |
| AQL | HIGHMARK INC |
| AQO | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AQP | BLUE CROSS – IDAHO – BOISE |
| AQQ | BCBS OF MICHIGAN |
| AQS | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AQV | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AQW | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AQY | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ARA | HEALTHNOW NEW YORK INC – BUFFALO |
| ARC | ANTHEM BCBS – OHIO |
| ARF | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ARG | ANTHEM BCBS – OHIO |
| ARH | WELLPOINT HEALTH NETWORKS-VIRGINIA |
| ARI | CAREFIRST BCBS – MARYLAND |
| ARM | ANTHEM BCBS – OHIO |
| ARN | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ARP | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ARR | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ARS | CAREFIRST BCBS – MARYLAND |
| ART | BCBS – MINNESOTA |
| ARU | ANTHEM BCBS – OHIO |
| ARV | CAREFIRST BCBS – MARYLAND |
| ARX | BCBS – KANSAS – TOPEKA |
| ASA | EXCELLUS BCBS – SYRACUSE – NY |
| ASB | EXCELLUS BCBS – ROCHESTER – NY |
| ASF | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ASG | EXCELLUS BCBS – ROCHESTER – NY |
| ASH | ANTHEM BCBS – OHIO |
| ASJ | ANTHEM BCBS – OHIO |
| ASM | ANTHEM BCBS – VIRGINIA |
| ASN | ANTHEM BCBS – VIRGINIA |
| ASO | EXCELLUS BCBS – ROCHESTER – NY |
| ASP | ANTHEM BCBS – VIRGINIA |
| AST | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ASZ | ANTHEM BCBS – MISSOURI |
| ATA | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ATG | ANTHEM BLUE CROSS – CALIFORNIA |
| ATH | ANTHEM BCBS – OHIO |
| ATI | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ATK | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| ATL | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| ATO | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ATP | WELLMARK OF IOWA/SOUTH DAKOTA |
| ATQ | BLUE SHIELD OF CALIFORNIA |
| ATU | BCBS – SOUTH CAROLINA |
| ATV | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| ATX | ANTHEM BCBS – OHIO |
| ATY | BCBS – SOUTH CAROLINA |
| AUB | BCBS OF MICHIGAN |
| AUC | ANTHEM BCBS – OHIO |
| AUD | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AUG | BCBS OF MICHIGAN |
| AUJ | ANTHEM BCBS – WISCONSIN |
| AUP | BCBS OF MICHIGAN |
| AUQ | WELLPOINT HEALTH NETWORKS-WISCONSIN |
| AUS | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| AUU | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AUW | BLUE CROSS BLUE SHIELD OF DELAWARE |
| AVB | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AVC | BCBS – SOUTH CAROLINA |
| AVE | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AVF | ANTHEM BLUE CROSS – CALIFORNIA |
| AVH | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AVI | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AVM | CAREFIRST BCBS – MARYLAND |
| AVN | PREMERA BLUE CROSS – SEATTLE WA |
| AVO | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AVR | CAREFIRST BCBS – MARYLAND |
| AVS | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AVT | ANTHEM BLUE CROSS – CALIFORNIA |
| AVW | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AWA | HEALTHCARE ADMINISTRATORS – SEATTLE |
| AWB | PREMERA BLUE CROSS – SEATTLE WA |
| AWC | ANTHEM BCBS – VIRGINIA |
| AWE | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AWF | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AWI | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AWJ | PREMERA BLUE CROSS – SEATTLE WA |
| AWK | WELLMARK OF IOWA/SOUTH DAKOTA |
| AWL | ANTHEM BCBS – OHIO |
| AWM | HIGHMARK INC |
| AWO | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AWP | ANTHEM BCBS – VIRGINIA |
| AWQ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AWR | HIGHMARK INC |
| AWT | ANTHEM BCBS – OHIO |
| AWV | WELLPOINT HEALTH NETWORKS-VIRGINIA |
| AWX | ANTHEM BCBS – OHIO |
| AWZ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AXA | ANTHEM BCBS – OHIO |
| AXC | BCBS OF MICHIGAN |
| AXD | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AXH | WELLMARK OF IOWA/SOUTH DAKOTA |
| AXL | BCBS OF MICHIGAN |
| AXM | ANTHEM BLUE CROSS – CALIFORNIA |
| AXO | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AXP | ANTHEM BCBS – OHIO |
| AXR | ANTHEM BCBS – OHIO |
| AXS | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AXT | EXCELLUS BCBS – ROCHESTER – NY |
| AXU | ANTHEM BLUE CROSS – CALIFORNIA |
| AXW | BLUE CROSS BLUE SHIELD OF DELAWARE |
| AXX | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AXY | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AXZ | ANTHEM BCBS – VIRGINIA |
| AYC | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| AYE | WELLMARK OF IOWA/SOUTH DAKOTA |
| AYF | HIGHMARK INC |
| AYG | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AYH | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AYI | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AYJ | BLUE CROSS – IDAHO – BOISE |
| AYL | ANTHEM BCBS – OHIO |
| AYM | HIGHMARK INC |
| AYN | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AYR | HIGHMARK INC |
| AYS | PREMERA BLUE CROSS – SEATTLE WA |
| AYW | HEALTHNOW NEW YORK INC – BUFFALO |
| AZA | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZB | ANTHEM BCBS – OHIO |
| AZC | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZD | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZF | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZG | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZH | BCBS – SOUTH CAROLINA |
| AZI | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| AZJ | ANTHEM BCBS – OHIO |
| AZL | BLUE SHIELD OF CALIFORNIA |
| AZO | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZP | CAREFIRST BCBS – MARYLAND |
| AZQ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZS | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| AZT | BLUE SHIELD OF CALIFORNIA |
| AZU | ANTHEM BLUE CROSS – CALIFORNIA |
| AZV | ANTHEM BLUE CROSS – CALIFORNIA |
| AZW | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| AZY | BLUE SHIELD OF CALIFORNIA |
| AZZ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
