Megan Gillem, DO Family Medicine USMD Physician Services Specialties Family Medicine Insurance Accepted Care N Care Care N Care (HMO, PPO) United Healthcare UnitedHealthCare Medicare - AARP MedicareComplete SecureHorizons (HMO) ResidencyUT SOUTHWESTERN MONCRIEF CANCER CNTR. , FP (2014) USMD Physician Services 4921 Long Prairie Rd Flower Mound, TX 75028 (972) 691-8700Directions USMD Physician Services 4921 Long Prairie Rd Flower Mound, TX 75028 United States