A Southern California–based psychiatrist specializing in the treatment of co-occurring psychiatric and substance use disorders. Dr. Chaghouri earned his BA in Biology summa cum laude from UCLA, where he was named Scholar-Athlete of the Year on a national championship men’s volleyball team. He received his medical degree from the Keck School of Medicine of USC and completed his psychiatry residency at the LA County + USC Medical Center, serving as Chief Resident in Psychiatric Emergency Services.