Global Health: Our DrPH Students



L. Esther Aranda
Global Health

BA, Harvard University
MA, Massachusetts Institute of Technology
MPH, The George Washington University

Prior to her MPH studies, Esther was an urban planner, with an anthropology background, working in the field of disaster risk reduction. During her first year of study, she will be a graduate assistant.

While Esther has many interests in public health, one of those areas is child health and the role nutrition plays in the development of children into healthy, productive adults.

Esther is originally from a small town in the Yucatan State in Mexico and is very excited about the enormous opportunities that exist to improve the delivery of public health programs and services. She is particularly excited about measuring and evaluating program effectiveness and outcomes through the use of existing datasets and developing novel research approaches.



Noah Bartlett
Global Health

BA, Bowdoin College
MA, Columbia University
MPH, Columbia University

Noah Bartlett has spent his entire career in the field of international public health data. For over 15 years, he has provided technical assistance to the field and policy-level guidance at headquarters on issues surrounding data collection, access and use. He believes in a strong role for data use in all areas of global health and development, in terms of strategic planning, monitoring progress towards goals, program evaluation, and accountability.

In 2008, Noah joined USAID as the surveillance and surveys technical advisor for the Office of HIV/AIDS. He is part of the team that oversees and directs the DHS program and is co-chair of PEPFAR’s Surveillance and Surveys Technical Working Group. Currently, Noah is USAID’s agency lead for PEPFAR’s Interagency Collaborative for Program Improvement (ICPI), a team of data analysts from several U.S. Government agencies charged with analyzing PEPFAR data, including HIV-related site-level targets and results, program quality, and budget data.



Chulwoo Park
Global Health

BS, University of Utah
MS, Johns Hopkins University

Chulwoo graduated with two bachelor’s degrees in Biology and International Studies at the University of Utah and a master’s degree in International Health at the Johns Hopkins Bloomberg School of Public Health. During and after his master’s study, Chulwoo worked with several non-governmental organizations – World Vision, International Rescue Committee (IRC), and Palladium – where he was able to travel to five African countries, Sierra Leone, Tanzania, Zambia, Malawi, and Mozambique to monitor and evaluate the World Vision’s maternal and child health projects.

Chulwoo is an international student from South Korea and came to the United States to pursue a university education.  He is motivated by his personal belief that public health must serve everyone, so that people living in even the remotest villages can also access health services at any time.