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