| Alliance Health Plan | FFS | nationwide | 202/939-6325 | 1R1 | 1R2 | |
| APWU Health Plan | FFS | nationwide | 800/222-2798 | 471 | 472 | |
| Association Benefit Plan | FFS | Specific Groups | 800/634-0069 | 421 | 422 | |
| Blue Cross and Blue Shield Service Benefit Plan-Basic | FFS | nationwide | Local phone # | 111 | 112 | |
| Blue Cross and Blue Shield Service Benefit Plan-Std | FFS | nationwide | Local phone # | 104 | 105 | |
| BlueCHOICE | HMO | StLouis/ Central/ SW/ Poplar Bluff area | 800/634-4395 | 9G1 | 9G2 | |
| Coventry HC Kansas Cty formerly Kaiser | HMO | Kansas City area | 800-969-3343 | HA1 | HA2 | |
| Foreign Service | FFS | Specific Groups | 202/833-4910 | 401 | 402 | |
| GEHA Benefit Plan-High | FFS | nationwide | 800/821-6136 | 311 | 312 | |
| GEHA Benefit Plan-Std | FFS | nationwide | 800/821-6136 | 314 | 315 | |
| Group Health Plan | HMO | St. Louis area | 800/743-3901 | MM1 | MM2 | |
| Humana Health Plan, Inc.-High | HMO | Kansas City area | 888/393-6765 | MS1 | MS2 | |
| Humana Health Plan, Inc.-Std | HMO | Kansas City area | 888/393-6765 | MS4 | MS5 | |
| Mail Handlers-High | FFS | nationwide | 800/410-7778 | 451 | 452 | |
| Mail Handlers-Std | FFS | nationwide | 800/410-7778 | 454 | 455 | |
| Mercy Health Plans/Premier | POS | East/ Central/ Southwest Missouri | 800/327-0763 | 7M1 | 7M2 | |
| NALC | FFS | nationwide | 888/636-6252 | 321 | 322 | |
| Panama Canal Area | FFS | Specific Groups | 732/222-2229 | 431 | 432 | |
| PBP Health Plan-High | FFS | nationwide | 703/683-5585 | 361 | 362 | |
| PBP Health Plan-Std | FFS | nationwide | 703/683-5585 | 364 | 365 | |
| Rural Carrier Benefit Plan | FFS | Specific Groups | 800/638-8432 | 381 | 382 | |
| SAMBA | FFS | Specific Groups | 800/638-6589 | 441 | 442 | |
| Secret Service | FFS | Specific Groups | 800/424-7474 | Y71 | Y72 | |