Dialectical Behavior Therapy Clinicians

As a multidisciplinary team of professionals in the fields of psychology, psychiatry,  nursing, social work, and counseling, we cherish individual human life with dedication and passion.

We have all completed rigorous intensive DBT team training in Seattle and are committed to the professional ethical standards of the American Psychological Association to maintain the utmost qualification to protect human life.

Yong Cho, Ph.D. | C.E.O. of the Tree Group / Founder of the Dialectical Behavior Therapy Center of Korea

Dr. Cho is the CEO of the Tree Group and a founder of the Dialectical Behavior Therapy Center of Korea. He is a licensed clinical psychologist in the state of New York. He graduated from the University of Utah and received his clinical training at Beth Israel Medical Center and trained extensively in a DBT program at The Zucker Hillside Hospital/North Shore Long Island Health System. He established the Tree Group in 2003 to provide humane and evidence-based psychological services in Korea.

With dedicated support from distinguished psychologists in the U.S., the Tree Group accomplishes its mission of relieving the suffering of its clients and of educating/training future clinicians with true compassion. His expertise in the field of cultural psychology and transcultural mental health was noted in the New York Times (2003) and he has been providing ethical services to culturally diverse clients.

His professional specialties allow him to reach out to the victims of human rights violations and sexual assault at the Open Clinic for Human Rights Victims, a non-profit organization.


Developer of 
Dialectical Behavior Therapy
Marsha M. Linehan Ph.D., ABBP
Professor / University of Washington

Dr. Linehan is a professor at the University of Washington and Director of Behavioral Research & Therapy Clinics. She is an internationally renowned authority on borderline personality disorder and one of the leading experts in the areas of treating severely disordered and multi-diagnostic populations.

She also developed Dialectical Behavior Therapy for treating a population previously thought to be untreatable; borderline personality disorder.

DBT has been proven effective for treating people who have abrupt changes in emotions, eating disorders, impulsivity, self-destructive tendencies, and suicidal behaviors.

DBT was celebrated by TIME in the book 100 New Scientific Discoveries. In 2016, the Association for Behavioral and Cognitive Therapies honored Dr. Linehan with a Career/Lifetime Achievement award.


Songhee Chae, M.A. | Vice-President of the Tree Group / Professional Psychotherapist

Ms. Chae, the Vice-President of the Tree Group and a professional psychotherapist, graduated from Ewha Women’s University with a degree in Psychology and received her master’s degree at the same university. She received clinical training from the Tree Group and its affiliated institution, EBTCS (Evidence-Based Treatment Center of Seattle). She further completed DBT (Dialectical Behavioral Therapy) training in Behavioral Tech. She is an expert in DBT and PE (Prolonged Exposure) treatment and focuses on BT (Behavioral Therapy) and CBT (Cognitive Behavioral Therapy) for children, adolescents, and adults. She also treats sexual violence survivors and other clients with trauma. She is an advisor for other related institutions and groups as well.  

– B.A. in Psychology at Ewha Women’s University   
– M.A. in Psychology at Ewha Women’s University   
– Received clinical training from EBTCS (Evidence-Based Treatment Center of Seattle)  
– Received DBT training from Behavioral Tech in the US 
– Co-author of a psychotherapy novel “The Seven Room”


Seungha Lee, MSc | Manager of DBT Center of Korea and the International Psychological Services / Psychotherapist, Active Learning Specialist

Ms. Lee is a psychotherapist and the manager of DBT Center of Korea and International Psychological Services (IPS) at the Tree Group. She graduated from McGill University with a degree in Psychology and received a master’s degree with a Distinction in Child Development at University College London. Her research at University College London focused on inhibition in early vs. late bilinguals. She also has a TESOL (Teaching English to Speakers of Other Languages) certificate. She conducts behavioral therapy and cognitive behavioral therapy for children and adolescents under IPS and DBT. She also educates bilingual children, adolescents, and adults under ALC.

– B.A. in Psychology at McGill University  
– MSc. In Psychology at University College London  
– TESOL (Teaching English to Speakers of Other Languages) Certificate