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Stewart de Ramirez, Sarah, M.D., M.P.H., M.Sc.

 Sarah Stewart de Ramirez, M.D., MPH, MSc


Assistant Professor, Department of Emergency Medicine

Assistant Director, Global Emergency Services



Harvard Medical School (M.D., 2008)
London School of Economics (MSc, 2002)
London School of Hygiene and Tropical Medicine (MPH, 2001)
Miami University (B.A., 1999)


Johns Hopkins Hospital, Emergency Medicine (2008-2012)


Sarah Stewart de Ramirez, M.D. MPH MSc is the Assistant Director for Global Emergency Services and an Assistant Professor in the Department of Emergency Medicine at Johns Hopkins University. 

After completing two years of health systems work in Namibia for the United States Agency for International Development, she studied at the London School of Economics and the London School of Hygiene and Tropical Medicine while completing a Marshall Scholarship, and received two Masters degrees, in Health Economics and in Public Health.

While completing her degree at Harvard Medical School, she held numerous leadership and consulting positions with various organizations, including the World Health Organization, the Gender Health Equity Network, the United Nations, and the International Office of Migration. 

She held the position of senior global health fellow for the Bill and Melinda Gates Foundation, and in that capacity, helped to design a pan-African strategy for the promotion of malaria prevention, control and treatment throughout sub Saharan Africa.  In that capacity, she consulted on health systems strategic planning for the diagnostics and treatment of neglected diseases in over 50 countries.  She continued her work on health systems through the Sarnoff Research Foundation award and designed and implemented the first large scale pan-African hypertension prevalence study. 

During her training in Emergency Medicine at Johns Hopkins, she has focused her research on pre-hospital and acute care health systems development.  She was a founding member of the Acute Care Research Collaborative, an initiative to develop a research networks for global emergency services.  She has worked as an emergency medicine specialist for the International Injury Research Unit and World Health Organization in their 10 country initiative for unintentional injury prevention and road safety.

Presently, she consults throughout the world on issues of pre-hospital and emergency services improvement.  In addition to working clinically and in academic instruction at the Johns Hopkins University Medical Schools in Baltimore and Malaysia, Dr. de Ramirez works in her position at John Hopkins International to improve emergency services on a global level. 

Research Interests

  1. Global Emergency Services
  2. Pre-Hospital and Acute Care Systems
  3. Global Public Health
  4. Unintentional Injuries

Recent Publications

  1. S. Stewart de Ramirez, A. Hyder, H. Herbert, K. Stevens: Global Injury Prevention: Global Evidence, Surveillance, and Systems.  Annual Review of Public Health.  33 (4): 1-17, 2012.
  2. N. Risko, E Calvello, S. Stewart de Ramirez, M. Narayan, and J.M. Hirshon:  Emergency and Acute Care: A Global Priority.  International Journal of Emergency Medicine. 4 (1):75-76: 2011.
  3. S. Stewart de Ramirez, S. Carle, M. Arii, M. Okongo, R. Moresky, S. Ehrlich Sachs, and M. Millin: Emergency Response in Resource Poor Settings: A Review of a newly implemented EMS System in Rural Uganda. Academic Emergency Medicine. 18 (1), 2011.