1. Minnesota


  1. Gastroenterology and Hepatology


  1. BS - Biology Villanova University
  2. MD University of Pennsylvania
  3. Internship - Internal Medicine Temple University Health Sciences Center
  4. Resident - Internal Medicine Temple University Health Sciences Center
  5. Fellow - Gastroenterology Mayo Graduate School of Medicine, Mayo Clinic College of Medicine


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

Academic rank

  1. Professor of Medicine

Professional Highlights

  • Editorial Board, Clinical Gastroenterology and Hepatology, 2009-present
  • Associate Editor, Inflammatory Bowel Diseases, 2006-present
  • Editorial Board, Gastroenterology, 2005-2010
  • Associate Editor, American Journal of Gastroenterology, 2003-2009


  • Epidemiology of inflammatory bowel disease (Crohn's disease and ulcerative colitis)
  • Natural history of inflammatory bowel disease
  • Diagnosis and disease activity assessment of inflammatory bowel disease
  • Medical therapy of inflammatory bowel disease
  • Pharmacoeconomics of inflammatory bowel disease


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


See a description of research activities.