Ari Doumouras
Assistant Professor, Surgery

Assistant Professor: Bariatric and General Surgery
McMaster University, Hamilton, ON
St. Joseph's Healthcare, Hamilton, ON
Adjunct Scientist, ICES Chronic Disease and Pharmacotherapy
Scientist, McMaster Centre for Metabolism, Obesity, and Diabetes Research



Dr. Doumouras is a staff surgeon in Minimally Invasive and Bariatric Surgery at St. Joseph's Healthcare and an Assistant Professor at McMaster University. He completed his Clinical Fellowship in Bariatric and Minimally Invasive Surgery at St. Joseph's Healthcare and his General Surgery training at McMaster University. He received his MD degree from Queen's University. During residency, Dr. Doumouras was awarded the Juravinski Fellowship from the McMaster Department of Surgery as well as a Knox Fellowship from Harvard University to pursue graduate studies at Harvard where he obtained a Master of Public Health degree with a focus on Epidemiology and Biostatistics. As part of this degree, he completed a research practicum in surgical crisis simulation with Dr. Steven Yule and Dr. Douglas Smink at the STRATUS Center for Medical Simulation at Brigham and Women's Hospital.

Dr. Doumouras has a passion for clinical research and brings a broad research background in bariatric, minimally invasive and endoscopic surgery highlighted by his CV and his appointment as an Adjunct Scientist at the Institute for Clinical Evaluative Sciences (IC/ES). He has published more than 50 papers principally relating to surgical outcomes, geographic access and costs, with a track record of being published in high impact journals such as Annals of Surgery, JAMA Surgery and British Journal of Surgery. He has won several awards for presentations at national and international meetings including first prize at the Resident and Fellow Research Competition at SAGES 2018.