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