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