James Francis Marion MD
Inflammatory Bowel Disease
Professor of Medicine, Icahn School of Medicine at Mount Sinai
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1 Gustave L Levy Pl# 3000New York, NY 10029
Phone+1 212-987-3100
Fax+1 212-731-5210
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Education & Training
Icahn School of Medicine at Mount Sinai/Mount Sinai HospitalFellowship, Gastroenterology, 1993 - 1995
New York Presbyterian Hospital (Columbia Campus)Residency, Internal Medicine, 1989 - 1992
Columbia University Vagelos College of Physicians and SurgeonsClass of 1989
Certifications & Licensure
NY State Medical License 1990 - 2027
American Board of Internal Medicine Gastroenterology
Awards, Honors, & Recognition
- Top Doctors: New York Metro Area Castle Connolly, 2010-2014
- Fellow (AGAF) American Gastroenterological Association, 2009
- Super Doctor SuperDoctors.com
Clinical Trials
- Study to Assess Efficacy and Safety of Cx601, Adult Allogeneic Expanded Adipose-derived Stem Cells (eASC) for the Treatment of Complex Perianal Fistula(s) in Participants With Crohn's Disease (CD) Start of enrollment: 2017 Sep 15
Roles: Principal Investigator
Publications & Presentations
PubMed
- Pseudo-Pseudo Polyp: Spindle Cell Sarcoma at an Ileocolonic Anastomosis.Ines Varela Knorr, James Marion, Jennifer Claytor
ACG Case Reports Journal. 2025-08-01 - Myeloid cell influx into the colonic epithelium is associated with disease severity and non-response to anti-Tumor Necrosis Factor Therapy in patients with Ulcerative ...Divya Jha, Zainab Al-Taie, Azra Krek, Shadi Toghi Eshghi, Aurelie Fantou
Biorxiv. 2023-06-05 - 7 citationsEndoscopic submucosal dissection for colorectal dysplasia in inflammatory bowel disease: a US multicenter study.Saowanee Ngamruengphong, Hiroyuki Aihara, Shai Friedland, Makoto Nishimura, David Faleck
Endoscopy International Open. 2022-04-01
Press Mentions
Symptoms of Crohn's Disease You Shouldn't IgnoreAugust 17th, 2022- Study Looks at Mental Health Toll from Pandemic on Front Line Healthcare WorkersOctober 11th, 2021
- Mount Sinai Researchers Studying Psychological Effects of COVID-19 Pandemic on Front-Line Health Care WorkersOctober 11th, 2021
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Professional Memberships
- Fellow
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