Michael J. Willenborg, M.D.
Aetna PPO Aetna Aexcel (Designated) BeechStreet PPO Blue Cross Par Plan Blue Cross Health Select BlueChoice PPO (Not HMO Blue) BlueChoice Solutions (See Plan for Designated Doctors) CCN/First Health PPO ChoiceCare Network Cigna PPO, HMO (POS), Open Access Plus Cigna Care Network (Designated) First Health PPO Great-West Healthcare PPO, HMO, POS, Open Access HealthSmart Preferred Care, Inc. PPO/North Texas Health Network Humana/With ChoiceCare Network Only Integrated Health Plan PPO Interplan PPO (Accountable Health Plans of America) Multiplan, Inc. PPO PacifiCare PPO Private Healthcare Systems (PHCS) PPO Texas Retirement System (TRS) Texas True Choice Tricare Standard Only Unicare PPO United Healthcare - All Plans USA Managed Care Organization PPO

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