1. Arizona


  1. Gastroenterology and Hepatology


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


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

Primary Appointment

  1. Gastroenterology

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
  • Advanced endoscopy


See my publications


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