Dr. Jonathan Edward Efron is a professor of urology and surgery at the Johns Hopkins School of Medicine. He is also a recipient of The Mark M. Ravitch, M.D., Endowed Professorship in Gastrointestinal Surgery.
Dr. Efron is a colon and rectal surgeon whose clinical focus includes colon and rectal cancer, inflammatory bowel disease, fecal incontinence and anorectal disorders. He is an expert in minimally invasive and robotic procedures and colostomy-sparing procedures, such as ileal pouch anal anastomosis. He also has a particular interest in the management of recurrent rectal cancer.
Dr. Efron received his B.A. from Franklin and Marshall College, and completed his M.D. at the University of Maryland in 1993. He then conducted a residency in general surgery at North Shore University Hospital in Manhasset, NY, and a fellowship in colorectal surgery at the Cleveland Clinic of Florida.
He joined the Johns Hopkins faculty after serving as an associate professor of surgery at the Mayo Clinic College of Medicine in Arizona.
Dr. Efron has published more than 71 articles in peer-reviewed journals, 11 book chapters and over 104 abstracts. He has presented his work locally, regionally, nationally and internationally.
He is a member of the American College of Surgeons, the American Society of Colon and Rectal Surgeons, the Society of American Gastrointestinal Endoscope Surgeons, the Society of LaparoEndoscopic Surgeons, the Society of Surgeons of the Alimentary Tract and the Southwest Surgical Society. He also serves on the World Journal of Surgery editorial board and is a member of the Southwest Chapter of the CCFA Medical Advisory Committee.
In 2015, Dr. Efron was named executive vice director of the Johns Hopkins Department of Surgery. In this role, Dr. Efron assists in the day-to-day operation of the department and serves as a liaison between The Johns Hopkins Hospital and its affiliates.