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