Systematic policy changes at the national level are needed to help international medical graduates (IMGs) fill the U.S. physician supply gap, according to experts. Oliver J. McElvaney, of the University of Washington, Seattle, Department of Medicine, and Graham T. McMahon, of the Accreditation Council for Continuing Medical Education and the Northwestern University Feinberg School of Medicine, discuss the challenges that IMGs face to entry in the United States.