Des Moines University is a United States' osteopathic medical college and is located in Des Moines, Iowa. Des Moines University is the second oldest Osteopathic medical school and the fifteenth largest medical school in the United States. There are 14,124 total alumni (10,514 living). Des Moines University was founded in 1898 as the Dr. S.S. Still College of Osteopathy. It was renamed Still College in 1905 and Des Moines Still College of Osteopathy and Surgery during the 1940s. In 1958, the institution was renamed the College of Osteopathic Medicine and Surgery. The first satellite clinic was established in 1963. In 1971, the Dietz Diagnostic Center, then a specialty clinic, began operation as a major outpatient facility. In 1980 the University was renamed University of Osteopathic Medicine and Health Sciences with a broadened educational mission. The school moved to its present site in 1972.