Hyong Un


Hyong Un
Vice President, Employee Assistance Program (EAP) and Chief Psychiatric Officer,Aetna


Dr. Hyong Un is the Chief Psychiatric Officer for Aetna and leads Aetna’s Employee Assistance Program. Un has been with Aetna since January 2002. In his role, Un supports the development of behavioral health care strategy as well as the development of innovative behavioral health disease and care management programs that promote overall optimal health and integration of behavioral health with medical management. Un also has strategic, programmatic, operational and financial oversight of Resources for Living, Aetna’s Employee Assistance Program.

Prior to joining Aetna, Un was the Psychiatrist-in-Chief of Friends Hospital, the nations’ first private psychiatric hospital and Chief Medical Officer for Penn-Friends Behavioral Health System of the University of Pennsylvania. Un’s clinical interests and expertise include behavioral and psychosocial determinants of overall health and productivity as well as fields of neuropsychiatry and psychopharmacology.

Un serves on numerous national committees including advisory board to the Director of National Institute of Mental Health (NIMH), Workplace Mental Health Board of the American Psychological Association (APA), and National Centers of Excellence for Depression, and is also a member of the American Psychiatric Association.

Dr. Un graduated from the University of Pennsylvania’s School of Medicine and completed his residency at the Hospital of the University of Pennsylvania.