Gateway Neuropsychology, LLC is a specialized clinical neuropsychology practice. We provide evidence-based assessment and treatment services for children, adolescents, and adults. Dr. David A. S. Kaufman is a clinical neuropsychologist and the director of Gateway Neuropsychology, LLC. In addition to seeing clients in private practice, he is an Assistant Professor of Psychology at Saint Louis University, where he is active in the clinical training and supervision of doctoral graduate students.