Dr. John Frederick Johanson, MD

Dr. John Johanson is a gastroenterology and infectious disease specialist who has dedicated over four decades to patient care. He earned his medical degree from the University of Illinois at Chicago College of Medicine and completed his residency at Medical College of Wisconsin Affiliated Hospitals. With 41 years of clinical experience, Dr. Johanson brings extensive knowledge to both digestive health disorders and infectious disease management. He is fluent in Chinese and Spanish, allowing him to serve diverse patient populations.

Dr. Johanson practices at Beloit Memorial Hospital and serves patients in Beloit, Wisconsin. His dual specialty expertise enables him to address complex cases where gastrointestinal and infectious conditions may overlap. Patients benefit from his comprehensive approach to digestive system disorders and his ability to diagnose and treat various infectious diseases. He has received an average rating of 1.0 from patients on Vitals.