The Indiana University School of Medicine (IUSM) is a major, multi-campus medical school located throughout the U.S. state of Indiana and is both the undergraduate and graduate medical school of Indiana University. There are nine campuses throughout the state; the principal research, educational, and medical center is located on the campus of Indiana University Indianapolis. With 1,448 MD students, 191 PhD students, and 1,438 residents and fellows in the 2024–25 academic year, IUSM is the largest medical school in the United States. The school offers many joint degree programs including an MD/PhD Medical Scientist Training Program. It has partnerships with Purdue University's Weldon School of Biomedical Engineering, other Indiana University system schools, and various in-state external institutions. It is the medical school with the largest number of graduates licensed in the United States per a 2018 Federation of State Medical Boards survey with 11,828 licensed physicians.
The school has pioneered research in multiple specialties, including oncology, immunology, substance use, neuroscience, and endocrinology. Research discoveries include a curative therapy for testicular cancer, the development of echocardiography, the identification of several genes linked to Alzheimer's disease, and the creation of inner ear sensory cells from pluripotent stem cells.
