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