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Sachiko Ozawa, PhD

  • Assistant Scientist

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PhD, Johns Hopkins University, 2010
MHS, Johns Hopkins University, 2007


Research interests include:

- Examining the effectiveness & efficiency of healthcare interventions such as vaccines for better resource allocation

- Measuring & building people’s trust and preferences in healthcare

- Improving coverage, access & sustainability of health systems financing interventions to reduce healthcare-driven poverty

- Understanding the impact of transitions of global health programs from donors to governments

Honors and Awards

Teaching Excellence Recognition, Johns Hopkins Bloomberg School of Public Health, 2011 & 2012

Faculty Pilot Grants in Global Health, Johns Hopkins Center for Global Health; The Toyota Foundation Research Grant Award, 2010

New Investigator in Global Health, Global Health Council; The Ruth Rice Puffer Fund for International Student Support; Nancy Stephens Student Support Fund, 2009

The Dean’s Teaching Fellowship, Johns Hopkins University; Baker, Reinke, Taylor Scholarship in International Health, 2008

Delta Omega Public Health Honors Society; The Dean’s Alumni Advisory Council Scholarship, Johns Hopkins Bloomberg School of Public Health; Global Field Experience Fund, 2007

Associate in Risk Management, Insurance Institute of America, 2005

Phi Beta Kappa National Honors Society, 2003

  • Health economics, health systems, vaccines, immunization, health financing, health insurance, trust, social capital, scale development, economic evaluation, mixed methods, international health, global health

Key publications

    Ozawa S, Clark S, Portnoy A, Grewal S, Brenzel L, Walker D. (2016) Return on investment from childhood immunizations in low- and middle-income countries, 2011-20. Health Affairs. 35(2):199-207.

    Ozawa S, Sripad P (2013). How do you measure trust in the health system? A systematic review of the literature. Social Science & Medicine. 91:10-14.

    Ozawa S, Pongpirul K (2013). 10 Best Resources on Mixed Methods Research in Health Systems. Health Policy & Planning. 29(3):323-327.

    Ozawa S, Mirrelman A, Stack M, Walker D, Levine OS (2012). Cost-Effectiveness and Economic Benefits of Vaccines in Low- and Middle- Income Countries: A Systematic Review. Vaccine. Dec; 31(1):96-108.

  • Ozawa S, Stack ML, Bishai DM, Mirelman A, Friberg IK, Niessen L, Walker DG, Levine OS (2011). During the 'decade of vaccines,' the lives of 6.4 million children valued at $231 billion could be saved. Health Affairs (Millwood). Jun; 30(6):1010-20.

  • Decade of Vaccine Economics (DOVE) Phase IV