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