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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Mark Larson:

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Specialties & Research

Dr. Mark Larson, MD is board certified in Internal Medicine and Gastroenterology.

  • He has special expertise in 12 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Colon Cancer
  • Colon Tumor (Adenomatous Polyps)
  • Colonic Polyps
  • Colonoscopy
  • Colorectal Cancer
  • Constipation
  • Gastrointestinal Endoscopy
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Rectal Cancer
  • Ulcerative Colitis

Education & Awards

Dr. Larson graduated from University of Iowa, Iowa City. He has 1 awards.

Castle Connolly's Top Doctors™ (2013)


Dr. Larson has 4 hospital affiliations:

  • Rochester Methodist Hospital 
  • St Marys Hospital - Rochester 

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Additional Information
Dr. Mark V Larson MD is a male Internist, has 30 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. Mark V. Larson practice?
Dr. Mark Larson has 1 office location.
Dr. Mark Larson practices Internal Medicine and Gastroenterology near Rochester, MN.
See Rochester Internists and Rochester Gastroenterologists.