Dr. Jiseung Yoon, MD MPH

Dr. Jiseung Yoon, MD, MPH is a board-certified physician specializing in Addiction Medicine and Public Health and General Preventive Medicine. He completed his Addiction Medicine fellowship at Loma Linda University and currently serves as an Assistant Professor of Preventive Medicine at the institution.

Dr. Yoon has extensive experience providing medical leadership across multiple levels of addiction treatment throughout Southern California, including residential programs, partial hospitalization programs (PHP), intensive outpatient programs (IOP), and opioid treatment programs (OTP). His work focuses on ensuring safe, effective, and coordinated medical care within behavioral health treatment settings.

Dedicated to improving outcomes for individuals and families affected by substance use disorders, Dr. Yoon is committed to delivering evidence-based, compassionate care that supports long-term recovery and overall well-being.