Dr. Hill was born to Lawrence and Marie Wiyrick Hill in Mountain Grove, Missouri. Doyle grew up in Mountain Grove and attended school where he enjoyed playing football.
He moved to Montpelier his senior year and graduated from Montpelier High School. He then attended college in Findlay where he again played football before joining the Navy. After his Naval service, he attended Ohio State, where he received his undergraduate degree in pre-med. He then went to Chicago College of Medicine, earning his doctorate degree.
He completed his internship in Bay City, Michigan, where he spent the next 28 years practicing medicine and donating his time as team physician and generously helping athletes of the local schools. In 1992, he chose to return to his roots in Mountain Grove where he attended and supported the Free Will Baptist Church and opened his medical practice there.