Dr.Hiroki Nakatani has held academic positions in Japan as visiting Professor at School of Medicine of Keio University and Invited Professor at Osaka University Post Graduate School of Medicine. He also serves in various national and international organizations as Chair, Board of Directors, Global Health Innovative Technology Fund (GHIT Fund); Senior-Advisor, Economic Research Institute for ASEAN and East Asia（ERIA）; Former Director, Hub on Population Ageing, Association of Pacific Rim Universities (APRU).

He is a veteran public health specialist for over 40 years, who started his career at the Ministry of Health, Labour and Welfare in Japan. He worked extensively in the area of health policy, public health, international health, and health science and technology. His national career includes serving as Director-General of Health and Welfare Services in Hiroshima Prefecture, where he was in charge of integration of health and welfare services in preparation for the arrival of a rapidly ageing society. With regards to international career, he served the WHO Headquarters twice.

From March 2007 to May 2015, he served as Assistant Director-General of WHO, leading the largest technical cluster of HIV/AIDS, Tuberculosis, Malaria and Neglected Tropical Diseases. Dr.Nakatani received his MD from Keio University School of Medicine, MHPEd from the University of New South Wales, and PhD from Keio University.