McFarland Clinic

Johnson, Thomas, MD

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Johnson, Thomas
4.72 out of 5
  • 53 Patient Ratings
Specialties & Services
Primary Clinic
1215 Duff Avenue Office
1215 Duff Ave
Ames, IA 50010

Dr. Thomas Johnson - Practice Information

Joined McFarland Clinic

July 1989

Medical Interests

  • Colon cancer research and prevention
  • Biliary and pancreatic disorders

Education & Professional Certification


  • Diplomate, National Board of Internal Medicine
  • Diplomate, National Board of Medical Examiners
  • Diplomate, American Board of Gastroenterology


University of Illinois, Champaign-Urbana, IL
  • BS, 1972-1976
University of Health Sciences, North Chicago, IL
  • BS, 1977-1979
University of Illinois, Chicago, IL
  • MD, 1980-1984


Loyola University Medical Center, Chicago, IL
  • Internal Medicine, 1985-1987


Loyola University Medical Center, Chicago, IL
  • Gastroenterology, 1987-1989

Professional Societies

  • American College of Gastroenterology
  • American Medical Association
  • Associate-American College of Physicians
  • Iowa Medical Foundation
  • Iowa Medical Society
  • Story County Medical Society

Professional & Personal Interests

Leadership Roles

  • Director, Mary Greeley Medical Center Endoscopy Lab
  • Department Chair, McFarland Clinic Gastroenterology

Community Involvement

Ames Emergency Shelter Residence Project, Upward Sports for Children

Patient Ratings

The Patient Rating score is an average of all responses to care provider related questions on our nationally recognized Press Ganey Patient Satisfaction Survey.

Responses are measured on a scale of 1 to 5, with 5 being the best score.

Care Provider showed concern for questions or worries


Care Provider included patients in decisions


Care Provider explained problems or conditions


Friendliness and courtesy of Care Provider


Likelihood of recommending Care Provider


Wait time at the clinic

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