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