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