John Hagen

John Hagen (born April 7, 1956) is a Canadian surgeon who specializes in laparoscopic surgery and bariatrics. He served as the Chief of Surgery at Humber River Regional Hospital (HRH) from 2013 to 2020, then Chief of Staff from 2020 to 2022. Hagen was also an assistant professor and lecturer at the University of Toronto. Provided by Wikipedia
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