His research focuses on the impact of medication costs and drug benefit design on the use of and adherence to medications for common chronic conditions, and his work is funded by the Robert Wood Johnson Foundation, the Commonwealth Fund, the Aetna Foundation, CVS Caremark, the Agency for Healthcare Quality and Research and others. Previously, he served as Chief Medical Resident for the Toronto General and Toronto Western Hospitals, and Director of the Medical Clerkship Program at the Toronto General Hospital. Choudhry received his undergraduate degree from McGill University, his medical degree from the University of Toronto, and his doctoral degree in health policy at Harvard University.