He completed his PhD in Pharmacology in 1990, and received his MD in 1992. He is Research Fellow since 2000 in the Department of Family & Community Medicine at the University of Toronto, and the Director of Research in the ED at Mount Sinai Hospital from 2000-2014. His work has focused on commonly encountered conditions in the ED, in particular those related to infectious diseases, cardiovascular care, and addiction/mental health. Dr Borgundvaag was appointed Director, of the Schwartz/Reisman Emergency Medicine Institute at MSH in 2014. He is an Associate Professor in the Department of Family and Community Medicine at U of T.