Dr. Charles is a psychiatry specialist with a residency program at Albert Einstein College of Medicine and fellowship training in child and adolescent psychiatry and addiction psychiatry. He has experience treating patients with serious mental illnesses, substance use disorders, developmental disabilities, and medical illnesses. Jin has served as chief psychiatrist for a teaching hospital in Delaware, medical director of C-L service at the Division of Child Psychiatry, and clinical supervisor for addiction and child and adolescent psychiatry fellowship programs. He is the author of multiple papers in peer-reviewed journals, including the American Journal of Psychiatry.