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