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