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