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Ronald Katon, M.D.

Not currently accepting patients

  • Professor of Medicine, Division of Gastroenterology and Hepatology, School of Medicine


  • Digestive Health
  • Hepatology / Liver Disease
  • Medicine

Special focus

  • Gastroenterology
  • Hepatology

About me

My focus for nearly 30 years has been the broad field of gastrointestinal endoscopy. My expertise has been nationally recognized and I have sat on the editorial boards of Gastroenterology (1977-1982) and Gastrointestinal Endoscopy (1983-1988 and 1996-2000). I have been appointed to various national committees of the ASGE including standards of practice, technology assessment and program selection committee.    

My endoscopic research has included important contributions in areas such as upper and lower GI bleeding, complications of endoscopy, flexible sigmoidoscopy, ERCP (biliary and pancreatic endoscopy), esophageal expandable stents, ultrathin endoscopy, small bowel enteroscopy and variable stiffness colonoscopy.    

Presently, my practice is limited to outpatient evaluations, and the procedures of EGD and colonoscopy. Patients with difficult and challenging diagnostics and therapeutic situations are encouraged.

Languages spoken

  • English

Education and training

  • Residency

    • Internal medicine-Oregon Health & Sciences University, Portland
  • Fellowship

    • Gastroenterology-Oregon Health & Science University, Portland
  • Certifications

    • Internal medicine, 1972
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