| PayerID | PayerName | EnrollmentReqd | PayerNotes |
| 13162 | 1199 NATIONAL BENEFIT FUND | N | |
| 93044 | A & I BENEFIT PLAN ADMINISTRATORS | N | |
| 36273 | AARP | N | |
| 87726 | AARP MEDICARE COMPLETE | N | HCFA CLAIMS ONLY |
| 87726 | AARP MEDICARE COMPLETE | N | UB Claims Only |
| 48185 | ABC Health Plan | N | |
| A0701 | ABMG | N | HCFA Claims Only - Formerly named SUTTER CONNECT ALTA BATES. |
| 03443 | ABRAZO ADVANTAGE HEALTH PLAN | N | HCFA Claims Only |
| 68055 | ABSOLUTE TOTAL CARE HCFA | N | |
| 68055 | ABSOLUTE TOTAL CARE UB | N | |
| AHS01 | ACCESS ADMINISTRATORS | N | |
| 64071 | Acclaim | N | |
| AHP01 | ACCOUNTABLE HEALTH HCFA | N | American Family Claims of IA & WI Only. |
| 59140 | ACEC Life Health Trust HCFA | N | |
| 59140 | ACEC LIFE HEALTH TRUST UB | N | |
| 87815 | ACORDIA NATIONAL | N | aka Wells Fargo TPA |
| 72467 | ACS Benefit Services | N | HCFA ONLY |
| 72467 | ACS Benefit Services UB | N | |
| SKTX0 | ACS INC - Texas Medicaid | N | HCFA Claims Only |
| 38254 | Activa Benefit Services, LLC | N | |