ATSU began with the founding of the Kirksville College of Osteopathic Medicine (KCOM), located in Kirksville, Mo., in 1892 by Andrew Taylor Still, M.D., D.O. The University has a rich history of providing leadership for comprehensive healthcare education and research and is consistently ranked in U.S. News and World Report’s “Best Graduate Schools” guide.

In addition to KCOM, ATSU has added four new schools in the last decade. The Arizona School of Health Sciences, founded in 1995, was the first school to occupy ATSU’s second campus in Mesa, Ariz. The School of Health Management, an exclusively online school, was founded in 1999 on the Kirksville Campus, and the Arizona School of Dentistry & Oral Health was added to the Mesa Campus in 2003. In 2006, ATSU founded the School of Osteopathic Medicine in Arizona, its second osteopathic medical college, on the Mesa campus.