Jose Oscar Mantilla-Rivas, MD Jose Oscar Mantilla-Rivas, MD, is a psychiatrist with AHN Behavioral Health, specializing child and adolescent psychiatry, with a focus on treatment of a range of mental health conditions. Dr. Mantilla-Rivas went to medical school at Universidad de los Andes in Bogota, Columbia. He did his residency and his fellowship in child and adolescent psychiatry at Western Psychiatric Institute and Clinic in Pittsburgh, Pennsylvania. He is Child Psychiatry Board Eligible. Dr. Mantilla-Rivas aims to provide equitable, evidence-based care for every patient and provides best-practice techniques to ensure the best possible outcomes. He sees patients ages newborn to 18.