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