Dr. Gleeson graduated from the University of Chicago Pritzker School of Medicine, then trained in Pediatrics, Neurology and Neurogenetics at Children’s Hospital, Boston and Harvard Medical School. He has been a faculty member at University of California San Diego School of Medicine and an Attending Physician at Rady Children’s Hospital San Diego since 1999. From 2008-2019 he was an Investigator with the Howard Hughes Medical Institute. From 2014-2015 he was the Hess Professor and Head of the Laboratory for Pediatric Brain Disease at Rockefeller University, and Director of Mendelian Sequencing at the New York Genome Center. Since 2015 he has held the Rady Children’s Hospital Auxilliary Endowed Professorship of Neuroscience and served as Director of Neuroscience Research at the Rady Children’s Institute for Genomic Medicine. He is an Investigator with the Simons Foundation for Autism Research Initiative, and an Elected Member of the National Academy of Medicine.