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