He works primarily with children and families, many of whom present with mild to moderate neurodevelopmental deficits. His clinical practice combines a cognitive behavior therapy approach with behavior skills training. Dr. Messer attended the University of Oklahoma for undergraduate studies and completed a dual-degree program in Law and Psychology, obtaining his J.D. from Villanova Law School in 1994 and his Ph.D. in Clinical Psychology from Hahnemann University in 1996. He interned at the Naval Medical Center Portsmouth, VA and remained on active duty until 2006. He completed a post-doctoral fellowship in pediatric psychology from the University of Oklahoma Health Sciences Center while on active duty.