1. Arizona


  1. Gastroenterology and Hepatology


  1. Undergraduate Studies Universidad Peruana Cayetano Heredia
  2. MD Universidad Peruana Cayetano Heredia
  3. Resident - Internal Medicine Southern Illinois University and Affiliated Hospitals
  4. Fellow - Gastroenterology Baylor College of Medicine
  5. Fellow - Therapeutic Endoscopy Baylor College of Medicine
  6. Fellow - Clinical Research Baylor College of Medicine


  1. American Board of Internal Medicine - Gastroenterology
  2. American Board of Internal Medicine

Academic rank

  1. Professor of Medicine

Professional Highlights

  • Chief, Gastroenterology Division, Carl T. Hayden VA Medical Center, 1995-2010
  • Director, Gastroenterology Fellowship Program, Banner Good Samaritan/Phoenix VA Medical Center, 1995-2010
  • Past Governor for Arizona, American College of Gastroenterology, 2000-2002


  • Esophageal disorders
  • Therapeutic endoscopy
  • New methods
  • Colorectal cancer/screening/surveillance


See a listing of publications on PubMed, a service of the National Library of Medicine.


See a description of research activities.


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