Charles H. Mayo, M.D. [1865-1939]

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Charles H. Mayo graduated from Chicago Medical College, now Northwestern University Medical School in 1888 and joined his father and older brother in their practice in Rochester, Minnesota. In 1889, the Mayos opened the first general hospital in southeastern Minnesota and pioneered the principle of "group practice." The Mayo Clinic evolved into one of the foremost medical treatment and research institutions in the world. Mayo retired from practice in 1928 and died in 1939, the same year the Clinic registered its one-millionth patient.

Dr. Charles H. Mayo