| United Medical Resources |
| UHC Harvard Pilgrim |
| UnitedHealthcare Shared Services |
| UHC Government Employees Health Assoc FEHB |
| Employers Insurance of Wausau |
| Harrington Benefit Services Inc |
| Benefit Planners Inc |
| Texas Municipal League |
| Uniform Medical Plan |
| PCIP |
| UMR |
| UMR formerly UMR Wausau |
| GEHA in Alabama |
| 4590 |
| 5402 |
| UnitedHealthcare Shared Services - UHSS (formerly UHIS) |
| 31107 |
| 33108 |
| 71804 |
| 74214 |
| 74223 |
| 75196 |
| 75243 |
| 95266 |
| 87726 |
| UMR01 |
| 37237 |
| UMRWV |
| 52132 |
| Government Employees Hospital Association |
| Government Employees Hospital Association GEHA |
| Government Employees Health Association GEHA |
| 1579 |
| 6467 |
| 44054 |