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The DO

Timeline: A breakdown of the history of osteopathic medicine

By The DO Staff

07.14.24

In 2023, the number of DOs in the U.S. reached nearly 149,000—a 30% increase over the past five years. A.T. Still, DO, MD, started the osteopathic medical profession 150 years ago in 1874. Since then, DOs throughout the nation have impacted countless lives, created 40 accredited colleges of osteopathic medicine to train future DOs and advocated for patients, among many other accomplishments.