He obtained his Ph.D. in anthropology/medical anthropology from that university in 2003 and a M.P.H from Johns Hopkins University (JHU) in 1999. He was an HHH Fellow at JHU in 1998 to 1999. Dr. Estacio also has served as an international consultant for the Vietnam and Bangkok offices of the United Nations Office on Drugs and Crime and as Executive Director of the Philippine Council of NGOs Against Drug and Substance Abuse. Dr. Estacio will spend his Fellowship year with Dr. Dennis M. Donovan of the Alcohol and Drug Abuse Institute at the University of Washington in Seattle, Washington, working to provide baseline evidence of the prevalence and incidence of amphetamine-type stimulant abuse and its associated risk and protective factors.