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