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