 While Coburn was manager, the Virginia division of Coburn Optical grew from 13 employees to over 350 and captured 35 percent of the U.S. market.After recovering from an occurrence of malignant melanoma, Coburn pursued a medical degree and graduated from the University of Oklahoma Medical School with honors in 1983.He then opened Maternal & Family Practice in Muskogee, Oklahoma, and served as a deacon in a Southern Baptist Church.