Ji Su
Hong
,
MD
About
Dr. Ji Su Hong is a child and adolescent psychiatrist at Kennedy Krieger Institute and an assistant professor in the Department of Psychiatry and Behavioral Sciences at the Johns Hopkins University School of Medicine. He practices at the Center for Autism Services, Science and Innovation (CASSI™). Dr. Hong specializes in the diagnosis and care of individuals with autism spectrum disorder (ASD) and other neurodevelopmental disorders across the lifespan. His expertise lies in the assessment of toddlers and preschoolers with complex neurodevelopmental and neurobehavioral conditions, including ADHD, global developmental delay, anxiety, trauma, and obsessive-compulsive disorder.
At CASSI, Dr. Hong has established three innovative clinical programs: the Toddler/Preschooler Diagnostic Team Evaluation, the Preschool Psychopharmacology Clinic, and the Research Units in Behavioral Intervention (RUBI) Parent Training Program. Dr. Hong provides diagnostic evaluations and consultations for complex cases from across the U.S. and internationally, serving families from Maryland, Washington, D.C., Virginia, Delaware, Pennsylvania, New Jersey, New York, West Virginia, Florida, Georgia, Tennessee, the U.S. Virgin Islands, Saudi Arabia, the UAE, Poland, South Korea and Vietnam. Families seek his expertise when local resources are insufficient to meet their needs.
Education
Doctoral/Graduate
1995-1997 Premed, Yonsei University College of Science, Seoul, South Korea
1997-2001 M.D., Yonsei University College of Medicine, Seoul, South Korea
Postdoctoral
2001-2002 Intern, Bungdang Cha General Hospital, Seongnam-si, South Korea
2002-2006 Resident, General Psychiatry, Yonsei University Health System Severance Hospital, Seoul, South Korea
2009-2012 Resident, General Psychiatry, Nassau University Medical Center, East Meadow, NY
2012-2014 Resident, Child and Adolescent Psychiatry, Washington University School of Medicine-St. Louis Children’s Hospital, St. Louis, MO
Professional Experience
2006-2007 Attending Psychiatrist, National Forensic Psychiatric Hospital, Gongju-si, South Korea
2006-2007 Attending Psychiatrist, Medical Juvenile Detention Center, Daejeon, South Korea
2007-2009 Attending Psychiatrist, Hanmaeum Hospital, Sacheon-si, South Korea
2014-2017 Attending Psychiatrist, Affinia Healthcare, St. Louis, MO
7/2017-Present Attending Psychiatrist, Center for Autism and Related Disorders, Kennedy Krieger Institute, Baltimore, MD
3/2018-10/2020 Instructor, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
11/2020-Present Assistant Professor, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
Research
Dr. Hong’s research focuses on diagnostic measurement of ASD and externalizing behaviors in preschoolers with ASD. His findings emphasize the clinical utility of the Autism Diagnostic Observational Schedule-2 (ADOS-2) while highlighting its challenges, such as false positives, which require expert interpretation. He has also studied the Autism Spectrum Rating Scale, ADHD symptoms in young children with ASD, and their associations with anxiety, affective problems, and disruptive behaviors. Current projects include investigating sensory issues in ASD diagnosis, disruptive mood dysregulation in preschoolers, and improving the accuracy of ADOS-2 assessments.