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