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