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