Born in London, Ontario, and educated at Princeton University (1969-1974), Royal College of Surgeons in Ireland (1974), University of Toronto (1986-1987), and Royal College of Surgeons of Canada (1987). Training included a research fellowship funded by the Medical Research Council of Canada (1986-1987) in Hydrocephalus. Assumed his appointment in the Department of Surgery, Division of Neurosurgery in 1988, and has been on the surgical staff at The Hospital for Sick Children in the Division of Paediatric Neurosurgery since then.
Primary research and clinical interests relate to the science and surgery of hydrocephalus. Laboratory interests lie in the applications of engineering science to developing novel techniques for diagnosing and treating hydrocephalus, and image guided surgery. Clinical research includes clinical trials in hydrocephalus and management of complex spinal disorders. Works include 84 peer reviewed publications, and a co-authored a book on cerebrospinal fluid shunts. A member of the editorial board of Computer Assisted Surgery, and the Medical Advisory Board for the Hydrocephalus Association in San Francisco, California. A full professor of Neurosurgery at the University of Toronto.