1. Minnesota


  1. Gastroenterology and Hepatology


  1. St. Josephs College, Galway
  2. Internship - Surgery Regional Hospital, Galway
  3. MB BCh/BAO National University of Ireland, Galway
  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. Tutor/Registrar - Medicine and GI St. Laurences and Beaumont Hospitals, Dublin
  8. Fellow - Gastroenterology-Hepatology, Department of Internal Medicine University of Iowa Hospitals and Clinics
  9. MD National University of Ireland, Galway


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

Academic rank

  1. Professor of Medicine

Professional Highlights

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


  • Esophageal disease
  • Achalasia
  • Celiac disease


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


See a description of research activities.