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Our Doctors

We are proud of our entire staff at the Holly Endoscopy Clinic. Specifically, we have 20 highly trained physicians conducting our upper and lower endoscopic procedures.  

Dr. John Hagen, MD, FRCSC

Specialty: General Surgery
  • Doctor of Medicine (MD), University of Alberta, 1979
  • General Surgery Residency, University of Toronto, 1980-1984
  • Surgical director of bariatrics at Humber River Hospital since 2007
  • Assistant professor in the Department of Surgery at the University of Toronto and is active in training residents and fellows in laparoscopic and bariatric surgery.
  • Recipient of the 2014 Mentor of the Year Award – Region 3 presented by the Royal College of Physicians and Surgeons of Canada
  • Involved in the Minimally Invasive Surgery fellowship training program for the University of Toronto
  • Hospital privileges: Hospital for Sick Children, Toronto, Humber River Regional Hospital, Toronto