Kazunori Kodama, Executive Director

Contact us here.


Dr. Kazunori Kodama is currently Executive Director at the Radiation Effects Research Foundation (RERF). He served as Chief Scientist at RERF from 2007 to 2017 before he assumed his current position. He also served as Chief of the Department of Clinical Studies from 1989 to 1999 and Chief of the Department of Epidemiology from 2002 to 2007 at RERF. From 1999 to 2002, he was appointed as Professor of the Department of Health Sciences at the Hiroshima University Faculty of Medicine.

He graduated from the Hiroshima University School of Medicine in 1972 and received training in the areas of medicine and cardiology at St. Raphael Hospital, affiliated with Yale University in the United States. Upon returning to Japan in 1981, he became a research scientist at RERF, thus embarking on his career as an epidemiologist. His major areas of emphasis have been epidemiology of cardiovascular disease and epidemiology of radiation health effects.


Conferred Degree of PhD, Hiroshima University
Graduated from School of Medicine, Hiroshima University


Radiation Effects Research Foundation
  • 2018-Executive Director
  • 2017-2018

    Chief Scientist, Co-Chief, Department of Information Technology

  • 2017-2018

    Chief Scientist, Director, Biosample Center

  • 2015-2018

    Chief Scientist, Chief, Emergency Workers Health Study Office

  • 2013-2015

    Chief Scientist, Director, Biosample Center

  • 2007-2018

    Chief Scientist

  • 2004-2007

    Chief Scientist, Chief, Department of Epidemiology

  • 2002-2004

    Chief, Department of Epidemiology

  • 1989-1999

    Chief, Department of Clinical Studies

  • 1988-1989

    Assistant Chief, Department of Clinical Studies

  • 1987-1988

    Chief, Division of Medicine, Department of Clinical Studies

  • 1981-1983

    Research Scientist, Department of Medicine

  • 1975-1976

    Research Scientist, Department of Medicine

  • 1974-1975

    Research Scientist, Department of Medicine, Atomic Bomb Casualty Commission

Hiroshima University
  • 1999-2002

    Professor, Department of Health Science, Institute of Health Sciences, Hiroshima University Faculty of Medicine

  • 1983-1987

    Lecturer, Division of Intensive Care Medicine, Hiroshima University Hospital

  • 1972-1974

    Resident in Medicine, Hiroshima University Hospital

Yale University School of Medicine, New Haven, Connecticut, USA
  • 1979-1981

    Cardiology Fellow, Department of Cardiology, Hospital of St. Raphael

  • 1976-1979

    Resident, Department of Internal Medicine, Hospital of St. Raphael

Honors and awards

  • 1992, 2012

    Award for Prevention of Cardiovascular Disease, Japanese Society of Cardiovascular Disease Prevention

  • 2011

    Distinguished Service Award, Japan Epidemiological Association

Selected publications

Kitamura H, Okubo T, Kodama K. Nuclear Emergency Workers Study Group. Epidemiological Study of health effects in Fukushima nuclear emergency workers—Study design and progress report. Radiat Prot Dosimetry. 2018; 182(1):40-8.
Ozasa K, Grant EJ, Kodama K. Japanese legacy cohorts: The Life Span Study atomic bomb survivor cohort and survivors’ offspring. J Epidemiol. 2018; 28(4):162-9.
Ozasa K, Takahashi I, Grant EJ, Kodama K. Cardiovascular disease among atomic bomb survivors. Int J Radiat Biol. 2017; 93(10):1145-50.
Cullings HM, Grant EJ, Egbert SD, Watanabe T, Oda T, Nakamura F, Yamashita T, Fuchi H, Funamoto S, Marumo K, Sakata R, Kodama Y, Ozasa K, Kodama K. DS02R1: Improvements to atomic bomb survivors’ input data and implementation of Dosimetry System 2002 (DS02) and resulting changes in estimated doses. Health Phys. 2017; 112(1):56-97.
Kamiya K, Ozasa K, Akiba S, Niwa O, Kodama K, Takamura N, Zaharieva EK, Kimura Y, Wakeford R. Long-term effects of radiation exposure on health. Lancet. 2015; 386(9992):469-78.
Wondergem J, Boerma M, Kodama K, Stewart FA, Trott KR. Cardiovascular effects after low-dose exposure and radiotherapy: what research is needed? Radiat Environ Biophys. 2013, 52(4):425-34.
Hsu WL, Preston DL, Soda M, Sugiyama H, Funamoto S, Kodama K, Kimura A, Kamada N, Dohy H, Tomonaga M, Iwanaga M, Miyazaki Y, Cullings HM, Suyama A, Ozasa K, Shore RE, Mabuchi K. The incidence of leukemia, lymphoma and multiple myeloma among atomic bomb survivors: 1950-2001. Radiat Res. 2013; 179(3):361-82.
Kodama K, Ozasa K, Katayama H, Shore RE, Okubo T. Radiation effects on cancer risks in the Life Span Study cohort. Radiat Prot Dosimetry. 2012; 151(4):674-6.
Ozasa K, Shimizu Y, Suyama A, Kasagi F, Soda M, Grant EJ, Sakata R, Sugiyama H, Kodama K. Studies of the mortality of atomic bomb survivors, Report 14, 1950-2003: An overview of cancer and noncancer diseases. Radiat Res. 2012; 177(3):229-43.
Adams MJ, Grant EJ, Kodama K, Shimizu Y, Kasagi F, Suyama A, Sakata R, Akahoshi M. Radiation dose associated with renal failure mortality: A potential pathway to partially explain increased cardiovascular disease mortality observed after whole-body irradiation. Radiat Res. 2012; 177(2):220-8.