Our Surgeons

Dr. Nicolas V. Christou MD PhD FRCSS FACS FASMBS

Head image of Dr. Christou

Dr. Christou obtained his Bachelor of Science degree from McGill University in 1971, his Doctorate in Medicine and Surgery in 1975, and his Doctorate in Philosophy (Surgical Infections) in 1978. He completed his surgical training at McGill in 1980 and was appointed Assistant Professor of Surgery at McGill University, and Attending Staff Surgeon Royal Victoria Hospital in 1981. He rose through the academic ranks at McGill and became Professor of Surgery in 1991.  He served the McGill University Health Center (MUHC) as director of the Surgical Intensive Care Unit (1988-1995), Director of the Division of General Surgery from 1995-2005 and Director of The Center of Excellence of Bariatric Surgery of the McGill University Health center 1995-2013. In 2013  at age 65,  the traditional retirement age from McGill University, he voluntarily gave up his PREM (government approved position in the public sector),  to make room for a younger surgeon.  He continues his academic and research responsibilities at McGill and the MUHC, and is currently Professor of Surgery, Emeritus.

He is a member of many prestigious surgical societies including the American Society of Metabolic and Bariatric Surgery and the CanadianAssociation of Bariatric Physicians and Surgeons of which he is a “founding father” and past president.

Dr. Christou’s research efforts in Clinical Outcomes after open and Laparoscopic Bariatric Surgery have contributed to the “Evidence Base” used worldwide to implement this life saving surgery in many countries.

To learn more about Dr. Christou’s research click: Publications List NV Christou

Since voluntarily giving up his PREM (government approved position in the public sector), Dr. Christou can only work in the private sector. Dr. Christou is therefore a “NON-PARTICIPATING PHYSICIAN” within the meaning of the health act (section L.R.Q., c. A-29 of the Health Insurance Act of Quebec).

Dr. Simon Chow MD MSc FRCSC FACS


Upon completing his Bachelor of Science degree in biochemistry at the University of British Columbia, Dr. Simon Chow was accepted to the prestigious University of Toronto Faculty of Medicine to pursue his M.D. degree. Thereafter, he completed his residency for General Surgery at McGill University. During this time, he was accepted into the Royal College of Physicians and Surgeons of Canada’s Clinician Investigator Program. From his contributions to research, he completed a thesis-based Master of Science degree, studying the link between inflammation and cancer.

He was selected for a competitive, accredited post-graduate fellowship program for bariatric surgery with Legacy Health and Providence Health organizations in Portland, Oregon, where world-renowned bariatric and upper gastrointestinal surgeons mentored him. During this time, he had the opportunity to further refine his complex surgical and diagnostic/therapeutic endoscopic skills. He also conducted further bariatric research projects. He has authored numerous medical publications and presented his research findings at countless national and international conferences.

He is board certified for general and bariatric surgery in Canada (FRCSC, Fellow of the Royal College of Surgeons of Canada) and the United States (FACS, Fellow of American College of Surgeons). He is an active member in good standing with the American Society for Metabolic and Bariatric Surgery, Society of American Gastrointestinal and Endoscopic surgeons, Canadian Association of General Surgeons, and American College of Surgeons.

Dr. Chow joined Weight Loss Surgery in 2015 and is a “NON-PARTICIPATING PHYSICIAN” within the meaning of the health act (section L.R.Q., c. A-29 of the Health Insurance Act of Quebec). Dr. Chow offers sleeve gastrectomy, Roux-en-Y gastric bypass, and revisional bariatric surgery, such as conversion of adjustable gastric band to sleeve gastrectomy or gastric bypass. He also offers general surgery procedures including laparoscopic cholecystectomies (gallbladder removal), and abdominal wall/inguinal hernia repairs.