Dr. Harrison is on Doximity
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Office
300 Halket St
Ste 5710
Pittsburgh, PA 15213Phone+1 412-641-1000
Education & Training
University of ChicagoFellowship, Gastroenterology, 1998 - 2001
University of Pennsylvania Health SystemResidency, Internal Medicine, 1995 - 1998
Perelman School of Medicine at the University of PennsylvaniaClass of 1995
Certifications & Licensure
PA State Medical License 1996 - 2026
IL State Medical License 1998 - 2005
American Board of Internal Medicine Gastroenterology
Awards, Honors, & Recognition
- CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory EMR, Epic Systems Corporation, 2011
Publications & Presentations
PubMed
- 1 citationsEfficacy of Ustekinumab and Vedolizumab Among Postoperative Crohn's Disease Patients as Postoperative Prophylaxis and Rescue Therapy: Real-world Data.Furkan U Ertem, Claudia Ramos Rivers, Amir Ali Ghaffari, Andrew R Watson, Gong Tang
Inflammatory Bowel Diseases. 2025-02-06 - 3 citationsGranuloma Presence at Initial Surgery Predicts Need for Repeat Surgery Independent of Rutgeerts Score in Crohn's Disease.Furkan U Ertem, Claudia Ramos Rivers, Andrew R Watson, Gong Tang, Marc Schwartz
Inflammatory Bowel Diseases. 2023-12-05 - 9 citationsSerum IgG4 Subclass Deficiency Defines a Distinct, Commonly Encountered, Severe Inflammatory Bowel Disease Subtype.Filippos Koutroumpakis, Anna E. Phillips, Dhiraj Yadav, Jorge D. Machicado, Maaz Ahsan
Inflammatory Bowel Diseases. 2021-05-17
Professional Memberships
- Member
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