Ronald T. Del Castillo, PsyD, MSc, MPH
Associate Profesor
Department of Health Policy and Administration

Dr. Ronald Del Castillo is an Associate Professor of health policy and administration, psychology, and behavioral sciences. He holds a doctorate in clinical psychology from a joint program between Palo Alto University and the Department of Psychiatry and Behavioral Sciences at Stanford University School of Medicine. He completed clinical residency at Harvard Medical School and postdoctoral training at Tufts University in Boston. He is committed to redressing the mental health gap. As such, he has focused his clinical training on meeting the needs of underserved, indigent populations. He has worked with adolescents, young adults, and older adults presenting with a range of mental health concerns. Dr. Del Castillo also holds a master in public health, specifically in health policy, from the University of California, Los Angeles. He obtained a bachelor of science in psychology from Fordham University in New York City. His research work is informed by community-based mental health, public policy, and socio-cultural determinants of illness. He strives to conduct research that is relevant and accessible to the community. His research work has the following long-term goals: (a) to form the basis of a nationwide and internationally comparative information tracking system of the prevalence and distribution of mental disorders and service utilization; (b) to transition from descriptive epidemiology to analytical epidemiology of mental disorders; (c) to bridge the gap of empirical data essential for the development, implementation, and evaluation of mental health legislation, policy, and regulation; (d) to improve availability, accessibility, acceptability, and quality of mental health services; and (e) to reduce stigma as a significant barrier to seeking mental health treatment among Filipinos. Dr. Del Castillo was born in Iloilo but lived in the U.S. for 24 years. In January 2015 he returned to the Philippines and entered the university through the Balik-PhD Program.



  • Del Castillo, R.. How to recognize and respond to microaggressions in everyday life. Psychological Association of the Philippines Convention, Pampanga.. (2016); ;
  • Del Castillo, R. . Sexual orientation microaggression and heterosexism in daily life. . Behavioral Sciences National Conference. (2016); ;
  • Del Castillo, R.. Sexual risk behaviors among Asian and Pacific Islander gay and bisexual men in the United States. . (2016); ;
  • Del Castillo, RT. “Mental health and human rights: Identifying and defending the right to mental health,” learning session, Psychological Association of the Philippines Convention 2015. . (2015); ;
  • Del Castillo, RT. DSM-5 and ICD-10: Transitions and intersection,” learning session, Psychological Association of the Philippines Convention.. . (2014); ;
  • Del Castillo, R. Crowdfunding low-cost mental health treatment and high-impact mental health skills, Global Health and Innovation Conference. . (2014); ;
  • Del Castillo, RT. “Critical thinking and probing skills for middle managers,” workshop, Human Resources Management Office, Western Visayas Medical Center, Iloilo City.. . ; ;
  • Del Castillo, RT. “Advancing the field of psychology for a sustainable and unified ASEAN.” Department of Psychology, University of Santo Tomas, Manila, Philippines.. . ; ;
  • Del Castillo, RT. Philippines: The state of the mental health care system in the Western Visayas,” field research, Center for Health Development, Western Visayas, Department of Health, Region 6.. . ; ;