Kenneth Croitoru, MDCM, FRCPC


Dr. Kenneth CroitoruDr. Kenneth Croitoru joined the Division of Gastroenterology at Mount Sinai Hospital in January 2008. He completed medical school at McGill University in 1981 and trained in internal medicine and gastroenterology from 1982-1986. He went on to do post-doctoral training as an MRC Research Fellow in Mucosal Immunology with Dr. John Bienenstock at McMaster University. On completion of this research training he joined the Division of Gastroenterology at McMaster in 1992 where he went on to serve as Training Program Director and Associate Director of the Division. During this time he developed his research program with funding from the Canadian Institute of Health Research, Canadian Association of Gastroenterology and the Crohn's and Colitis Foundation of Canada. He held an Ontario Ministry of Health Career Scientist award for 10 years and more recently was one of the first recipients of a 5 year CCFC IBD Research Scientist Award. He served as the Chair of the CCFC Medical Advisory Board and helped develop the CCFC IBD Research Institute where he served as Chair of the Executive Committee until 2008.

Dr. Croitoru joined the Department of Medicine at Mount Sinai Hospital as a Clinician Scientist in 2008 and is appointed to the Lunenfeld-Tannenbaum Research Institute. He is also a full Professor of Medicine at the University of Toronto, a member of the Institute of Medical Sciences and has a cross-appointment in the Department of Immunology.

His research is focused on investigating the fundamental mechanisms of intestinal inflammation, in particular the role of T cell effector and regulatory function in the intestinal mucosal in Inflammatory Bowel Disease (IBD). The goal of his work is to understand how T cells function to maintain intestinal homeostasis in health and what defects in regulatory T cells allow for the breakdown of these mechanisms.

Dr. Croitoru is also Project Leader of, the GEM Project ( a global clinical study that is coordinated out of the IBD Research Group and Zane Cohen Center at Mount Sinai Hospital. The study is a prospective cohort study of healthy subjects at risk of developing Crohn's disease. That will explore the Genetic, Environmental and Microbial factors that lead to Cohn's disease. This study has had over $15 million in funding from Crohn's Colitis Canada, CIHR and the Helmsley Charitable Trust.

Mount Sinai Hospital
Zane Cohen Centre for Digestive Diseases
Inflammatory Bowel Diseases (IBD) Group

Phone: 416-586-4800 ext. 7454
Fax: 416-586-4747

Administrative Secretary
Tammie Greenslade
Phone: 416-586-4800 ext. 7454
Fax: 416-586-4747

Office Location
Mount Sinai Hospital
Joseph and Wolf Lebovic Health Centre
437-600 University Avenue
Toronto, Ontario, Canada
M5G 1X5

Board Certificates
Royal College Certificate in Internal Medicine and Gastroenterology
Specialist Certificate, Quebec, Internal Medicine and Gastroenterology
American Board of Internal Medicine Certification

Professional Organizations

American Gastroenterological Association
American Association of Immunologists
Canadian Association of Gastroenterology
Canadian Association for the Study of the Liver
Canadian Medical Association
Canadian Society for Immunology
Crohn’s and Colitis Foundation of Canada (Professional Member)
Ontario Association of Gastroenterology
Ontario Medical Association
Society for Mucosal Immunology