1. Minnesota


  1. Gastroenterology and Hepatology
  2. Cancer Center


  1. MD National University of Ireland, Galway
  2. Fellow - Gastroenterology-Hepatology, Department of Internal Medicine University of Iowa Hospitals and Clinics
  3. Tutor/Registrar - Medicine and GI St. Laurences and Beaumont Hospitals, Dublin
  4. Senior House Officer - Internal Medicine University of Dublin, Trinity College
  5. DCH - Child Health National University of Ireland, University College of Dublin
  6. Internship - Medicine Regional Hospital, Galway
  7. Internship - Surgery Regional Hospital, Galway
  8. MB BCh/BAO National University of Ireland, Galway


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

Primary Appointment

  1. Gastroenterology

Academic rank

  1. Professor of Medicine

Professional Highlights

  • Senior Associate Editor, American Journal of Gastroenterology, 2009-present


  • Esophageal disease
  • Achalasia
  • Celiac disease


See my publications


See a description of research activities.


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