Ji Su


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. Dr. Hong practices at the Center for Autism Services, Science and Innovation (CASSI™, formerly known as the Center for Autism and Related Disorders, or CARD), where he treats children and adolescents with a range of developmental and mental health disorders, such as autism spectrum disorder, global developmental delay, intellectual disability, ADHD, mood disorders, anxiety disorders, behavioral disorders, etc.



1995-1997 Premed, Yonsei University College of Science, Seoul, South Korea

1997-2001 M.D., Yonsei University College of Medicine, Seoul, South Korea   


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


Dr. Hong’s research focus is early detection and intervention of autism spectrum disorder and comorbid psychiatric disorders, especially ADHD and disruptive behavior disorder, in young children.

5/2020-Present   RUBI Program for Autism Spectrum Disorder and Disruptive Behaviors 
Role: Principal investigator (QI project)

9/2020-Present   ASD Early Childhood and Longitudinal Study 
Role: Principal investigator (chart review research)

Related Links

Google Scholar Profile