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