This list of medical specialty colleges in the United States includes medical societies that represent board certified specialist physicians. The American Medical Association maintains a list of societies represented in its House of Delegates, while the American Association of Colleges of Osteopathic Medicine maintains a list of osteopathic specialty colleges. The American Association of Physician Specialists maintains a list of specialties colleges open to physicians with either M.D. or D.O. degrees. Some societies are not affiliated with these associations.