| 1199SEIU in Sterling, VA | AMERIGROUP in Sterling, VA |
| APS Healthcare in Sterling, VA | Aetna in Sterling, VA |
| Alliance in Sterling, VA | AmeriHealth in Sterling, VA |
| American Behavioral in Sterling, VA | Beech Street in Sterling, VA |
| Behavioral Health Systems in Sterling, VA | BlueCross and/or BlueShield in Sterling, VA |
| CCN in Sterling, VA | CHIPA/College Health in Sterling, VA |
| Cascade Health in Sterling, VA | Ceridian in Sterling, VA |
| ChoiceCare in Sterling, VA | Cigna in Sterling, VA |
| ComPsych in Sterling, VA | Corphealth in Sterling, VA |
| Coventry in Sterling, VA | First Choice Health in Sterling, VA |
| First Health in Sterling, VA | GHI/Group Health Incorporated in Sterling, VA |
| Great-West in Sterling, VA | Guardian in Sterling, VA |
| HFN in Sterling, VA | HIP/Health Plan of New York in Sterling, VA |
| Harvard Pilgrim Health Care in Sterling, VA | Health Net in Sterling, VA |
| Holman Group in Sterling, VA | Horizon Healthcare in Sterling, VA |
| Humana in Sterling, VA | Integrated Health Plan in Sterling, VA |
| Interplan in Sterling, VA | Kaiser in Sterling, VA |
| LifeWise in Sterling, VA | MAMSI in Sterling, VA |
| MHN/Managed Health Network in Sterling, VA | Magellan Behavioral Health in Sterling, VA |
| MagnaCare in Sterling, VA | Medica in Sterling, VA |
| Medicaid in Sterling, VA | Medical Mutual in Sterling, VA |
| Medicare in Sterling, VA | Multiplan in Sterling, VA |
| NCPPO in Sterling, VA | ODS in Sterling, VA |
| Oxford in Sterling, VA | PHCS/Private Health Care Systems in Sterling, VA |
| PPOM in Sterling, VA | PacifiCare in Sterling, VA |
| PacificSource in Sterling, VA | PreferredOne in Sterling, VA |
| Providence in Sterling, VA | Sloans Lake in Sterling, VA |
| TRICARE in Sterling, VA | TriWest0127 in Sterling, VA |
| Tufts in Sterling, VA | UniCare in Sterling, VA |
| Uniform in Sterling, VA | United in Sterling, VA |
| VMC in Sterling, VA | ValueOptions in Sterling, VA |
| WellPoint in Sterling, VA |