Dr. Thomas F. Mangan has been practicing medicine for 35 years. Dr. Mangan graduated from the Hahnemann University School of Medicine in 1979. He practices medicine in Rochester, MN and specializes in Gastroenterology and Hepatology. Dr. Mangan is affiliated with Mayo Clinic Health System-New Prague, Federal Medical Center and Mayo Clinic Hospital-Rochester Methodist Campus. He speaks English, French, German, Chinese and Spanish.