Dr. Nowlin is a graduate of Auburn University and the University of Tennessee College of Denistry. After graduation in 1979, Dr. Nowlin worked in Chattanooga with the State of Tennessee Public Health Service. Dr. Nowlin opened his Columbia practice in 1980. He is very involved with his family, community, and church. He has coached various soccer, basketball, and baseball teams. He has served as a member of the Kiwanis Club, the United Way Committee, the Zion Christian Academy School Board, and has been President of the American Red Cross. He is an active member of the First Baptist Church of Columbia.