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