Areas of Care:
- General Gastroenterology
- Inflammatory Bowel Disease (IBD)
Undergraduate Education:
- Stanford University, Stanford CA
Medical Education:
- Louisiana State University School of Medicine, New Orleans LA
Residency:
- Charity Hospital, New Orleans LA – Internship
- University of Connecticut School of Medicine, Farmington CT- Chief resident
Fellowship:
- University of Connecticut-, Farmington CT – Gastroenterology
- Yale University, New Haven CT – Hepatology (NIH Trainee)
Board Certifications:
- American Board of Internal Medicine
- American Board of Internal Medicine- Gastroenterology
Professional Appointments and Memberships:
- Associate Clinical Professor of Medicine, Oakland University William Beaumont School of Medicine
- Fellow, American College of Physicians
- Fellow, American College of Gastroenterology
Special Interests:
- Inflammatory bowel disease (Crohn’s disease, Ulcerative Colitis)
- Irritable bowel syndrome
- Reflux and Barrett’s esophagus
Honors and Awards:
- Yale University Gastroenterology Research Award; 1981
- Detroit Monthly-Top Doctor List; 1994, 1996
- Detroit Free Press- Top/Best Doctor List; 1996, 1998
- Detroit Hour Magazine- Top Doctor List; 2000-2013, 2015
- Best Doctors in America; 1999, 2003-2004, 2005-2007, 2009-2012, 2015-2020,
- StyleLine Magazine- Best Doctors for Women; 2009-2010, 2012, 2014
- Vital Magazine- Best Doctors List; 2008
- Who’s Who in America; 2010
- Castle Connolly- Top/Best Doctor; 2013-2025
- Hour Magazine – Top Doctor; 2000-2013, 2015-2020, 2024
- Teacher of the year award – GI Division – Corewell; 2025
Other Interests:
Dr. Duffy has authored over 20 publications in peer-reviewed journals and books. He has served on the board of directors of the Crohn’s & Colitis Foundation and as President of the Detroit GI Society. He is active in the Gastroenterology Fellowship at William Beaumont Hospital, serves as Fellowship Program Director.