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Entries - Entry Category: Practitioners - Starting with O

Ogden, Mahlon Dickerson

Mahlon Dickerson (M. D.) Ogden was a physician who cofounded Trinity Hospital of Little Rock (Pulaski County) in 1923. At Trinity, he pioneered the use of the health maintenance organization (HMO)—a form of health insurance in which member physicians provide medical care to subscribers for a fixed fee—in Arkansas. Born on December 5, 1881, in Little Rock, M. D. Ogden was the only son of railroad clerk Charles Cullen Ogden and his wife, Altamira Deason Ogden. An older cousin, Fred R. Bryson, was adopted into the family and became Ogden’s legal brother. Educated in the local schools, Ogden graduated from the Arkansas Medical School (now the University of Arkansas for Medical Sciences) in 1904. From 1905 to 1916, he taught …

Orto, Zaphney

Zaphney Orto, a prominent physician who helped discover the link between malaria and mosquitoes, was a U.S. army major and surgeon during the Spanish-American War, and the second president of Simmons First National Bank, founded in Pine Bluff (Jefferson County). Born to Leonidas Orto and Martha G. McElwee Orto in Somerville, Tennessee, in 1842, Zaphney Orto lived on a farm near Somerville until he was eighteen, then worked in a store for two years. He studied medicine with Dr. S. W. Thompson of Evansville, Indiana, and graduated from the Miami Medical College of Cincinnati, Ohio, in 1872. Shortly afterward, he moved to Arkansas, where he settled in Clover Bend (Lawrence County). He practiced medicine there for two years before moving …