Dr. Peter Armstrong received his medical degree from the University of Western Ontario in 1972. His orthopaedic residency was done at the University of Toronto followed by a pediatric orthopaedic fellowship with Dr. Robert Salter at The Hospital for Sick Children in Toronto. Following his fellowship, in 1982, he joined the orthopaedic staff at The Hospital for Sick Children in Toronto but spent the first two years doing orthopaedic research at the University of Pennsylvania. In 1991, he then became Chief of Staff of Shriners Hospitals for Children Intermountain (Salt Lake City). In 2000, he was selected as Chief Medical Officer of the 22 Shriners Hospitals and moved to the Headquarters in Tampa. At the end of June 2012, he became the Chief Medical Officer – Emeritus. In 2013, Dr. Armstrong went on to become the Chief Medical Officer of OrthoPediatrics (NASDAQ: KIDS) until 2021. He now serves as the President & Chairman of the Board of the Foundation for Advancing Pediatric Orthopaedics.