The state could be facing a shortage of 6,000 physicians by 2020, according to a study commissioned by the Michigan State Medical Society. Medical schools are looking at ways to increase enrollment in the coming years, but more federal dollars would be needed to open graduate residencies. The Medical Society is working with Wayne State, Michigan State and the University of Michigan to study physician counts and per-capita ratios, as well as practice details, such as specialties practiced, and training programs.