After college at Duke University and medical school at Georgetown University, Dr. Johnson served an internship at the U.S. Public Health Service Hospital in San Francisco as a commissioned officer. He then practiced Family Medicine in Sandstone, Minnesota. He served an orthopaedic surgery residency at the Mayo Clinic in his hometown of Rochester, Minnesota. Following residency, he was a fellow in Foot and Ankle Surgery at the University of Texas, Houston, under the direction of Donald E. Baxter, M.D. He joined the full-time faculty in the Department of Orthopaedic Surgery at the Medical College of Wisconsin in Milwaukee where he served from 1989 until his appointment to the full-time faculty at Washington University School of Medicine in 1986.
Currently, Dr. Johnson is a Professor of Orthopedic Surgery, Chief of the Foot and Ankle Service and Director of the Orthopaedic Foot and Ankle Fellowship Program at Barnes-Jewish Hospital at Washington University Medical Center. He is also on the consulting staff of the Shriners Hospital for Children in St. Louis.
Dr. Johnson serves as President-elect on the Board of Directors of the American Orthopaedic Foot and Ankle Society, a 2,200 member national organization of board certified orthopaedic surgeons who specialize in the surgical and nonsurgical treatment of all types of foot and ankle disorders.