He holds a joint appointment, at the University of Tennessee Graduate School of Medicine, with both the Department of Pathology and the Department of General Dentistry as an Associate Professor. He is a core faculty member and Director of the Forensic Odontology Program at the University of Tennessee, the only postgraduate curriculum of its kind in the country to offer intensive case-based exposure and training for residents in the field of Forensic Dentistry. Dr. Marks was instrumental in launching the program in 2014.