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