Aaron is a public health, family, and emergency physician. He studied medicine at McMaster University and completed postgraduate training in Family Medicine at the Northern Ontario School of Medicine, and Public Health and Preventive Medicine at the University of Toronto. He holds graduate degrees in history and philosophy of medicine from the University of Oxford and Public Health from the University of Toronto, and is a doctoral candidate in clinical epidemiology at the University of Toronto. His work explores the intersection between public health and clinical medicine, with an emphasis on health systems design and health equity. He worked with ICHA previously at the Seaton House Infirmary, and practices emergency medicine at St. Joseph's Health Centre and Humber River Hospital.