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