Annie Hsu is an experienced professional in the field of medical physics, currently serving as Associate Head of Medical Physics at Sunnybrook since August 2019. Prior roles include Chief of Clinical Physics at Stanford Hospital & Clinics and a physicist position at Stanford Cancer Center, both held from 2014 to 2019. Previously, Annie Hsu completed a physics residency at Stanford Medical Center and held postdoctoral fellowships at the Institute of Cancer Research & Royal Marsden NHS Trust, Cancer Care Ontario, Queen's University, and the Royal Military College of Canada. Annie Hsu holds a PhD in Physics and a Master's degree in Physics from Queen's University, as well as a Bachelor of Science in Physics from the University of Toronto.