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