| Aetna/US Healthcare |
| Blue Cross Blue Shield of Massachusetts |
| Beacon Health Strategies |
| Cigna Health Care |
| Cost Care |
| Fallon Community Health Plan |
| Greensprings |
| Harvard Pilgrim Health Care (HPHC) |
| Magellan Behavioral Care (MBC) |
| Managed Health Network (MHN) |
| MCC Behavioral Care |
| Medicare Part B (Mass) |
| Medicaid (Mass) |
| Neighborhood Health Plan (NHP) |
| Tufts Health Plan (POS) |
| United Heath Care |
| US Healthcare |
| Value Behavioral Health |
| Value Options |
