He was experienced in different subspecialties, including general adult psychiatry, child and adolescent psychiatry, old-age psychiatry, consultation-liaison psychiatry, psychotherapy, substance abuse psychiatry, forensic psychiatry, rehabilitation and community psychiatry.
Within the Hospital Authority, he also contributed to the development of different corporate services through serving at different platforms, including Working Groups on Community Psychiatric Service, Learning Disability Service and the Mental Health Promotion Committee. Professionally, he is a member of the Division of Community and Social Psychiatry, Division of the General Adult and Division of Psychotherapy of the Hong Kong College of Psychiatrists.