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