Dr. Thomas Dale Johnson, MD

Dr. Thomas Johnson is a gastroenterologist and internal medicine physician who earned his medical degree from the University of Illinois at Chicago College of Medicine. He completed his residency training at Loyola University Medical Center and brings over four decades of clinical experience to his practice. Dr. Johnson speaks English and serves patients throughout the region.

Dr. Johnson practices at Mary Greeley Medical Center in Ames, Iowa, where he focuses on digestive health concerns. He treats patients with colon polyps, rectal bleeding, and upper digestive tract bleeding. His expertise includes performing colonoscopies and lower digestive tract procedures to diagnose and treat various gastrointestinal conditions. Dr. Johnson also conducts general blood testing as part of his comprehensive approach to patient care.