Steve Egwuonwu, MD is an internal medicine doctor and primary care doctor who practices at Lawton Family Practice & Allergy Clinic located at 5604 SW Lee Blvd in Suite 245 in Lawton, OK 73505 (Comanche County). Dr. Steve Egwuonwu has 13 years of experience in internal medicine. Education. Steve Egwuonwu, MD earned a degree of a Doctor of Medicine..