• Aetna US Health Care, Barnabas Employee Health Plan, Beech Street, GHI- Group Health Incorporated, Great West Healthcare, Health Net, HMO Blue - Medicare Blue, Horizon Managed Care, Horizon PPO, Horizon Traditional/Indemnity, Local 825 Welfare Fund, Magnacare/Magnet, Multiplan, Inc., Oxford Health Plans, Private Healthcare Systems (PHCS), Qualcare, United Health Car