Key Leadership

Sunita Kishor


Livia Montana

Deputy Director

Gisele Dunia

Senior Advisor for Capacity Strengthening

Joanna Lowell

Senior Science Advisor

Tom Pullum

Senior Advisor for Research and Analysis

Erica Nybro

Senior Advisor for Communication

Survey and Technical Leadership

Fred Arnold

Technical Director

Trevor Croft

Technical Director

Guillermo Rojas

Director, Data Processing

Gulnara Semenov

Senior Survey Coordinator & Health Advisor

Joy Fishel

Senior Survey Coordinator  & HIV Coordinator

Anjushree Pradhan

Senior Survey Coordinator

Topical Leadership

Ben Mayala

Senior GIS Coordinator

Sorrel Namaste

Senior Nutrition Advisor

Ruilin Ren

Senior Sampling Coordinator

Cameron Taylor

Malaria Coordinator


Key Leadership Biographies  


Dr. Kishor is a gender expert, demographer, and survey specialist with 20 years of experience in the collection of high-quality gender data in developing countries. She has been responsible for the design, implementation, and analysis of questionnaire modules on women's empowerment and domestic violence in population-based surveys. Dr. Kishor works with DHS staff and stakeholders to integrate gender into implementation and research activities, develops gender-sensitive indicators and dissemination materials, and helps develop and update the Gender Corner of the DHS Web site. She also co-managed the third National Family Health Survey in India, a DHS survey of more than 100,000 households, with 200,000 individuals interviewed in all Indian states. Dr. Kishor has a Ph.D. in sociology from the University of Maryland College Park. up-arrow

Deputy Director

Dr. Montana joined the DHS staff in 2019 from the Harvard Center for Population and Development Studies, where she was a Research Scientist and Director of Research. She is a survey and research expert with hands-on experience with household surveys along the entire survey continuum including planning, budgeting, contracting, questionnaire design, piloting, training, and analysis. Over the course of her career at Harvard and the Carolina Population Center at the University of North Carolina-Chapel Hill, she directed longitudinal surveys in multiple countries. She also worked for The DHS Program earlier in her career from 1999-2007. She brings critical management, mentoring, and leadership to The DHS Program. She completed a master’s degree in Population Geography at UNC-Chapel Hill, and holds a Doctorate of Science (SD) in Population and Reproductive Health from the Harvard School of Public Health with minors in demographic and spatial methods. up-arrow

Senior Advisor for Capacity Strengthening

Dr. Dunia provides technical guidance and oversees the implementation of plans to strengthen individual and institutional capacity. She is responsible for the overall management of the Global Capacity Strengthening Strategy at the global and country levels. Dr. Dunia is a global health professional with 15 years of experience in clinical and managerial capacity building, coaching and mentoring, team building, and organizational strengthening, working with complex developing programs in several African countries and in Haiti. She has worked to design and implement capacity strengthening programs at the local, national, and global levels. She also has technical expertise in RMNCAH, nutrition, HIV/AIDS, and malaria as well as related health systems components. She has experience presenting and sharing information with audiences with diverse backgrounds. Dr. Dunia has an M.B.A. in Information System Management from the Keller Graduate School of Management of DeVry University, an M.P.H. in Health and Development from Université Libre de Bruxelles, in Belgium, and an M.D. from University of Lubumbashi, in DR Congo. up-arrow

Senior Science Advisor

Dr. Lowell joined The DHS Program in 2009 as a Survey Manager overseeing surveys in Zimbabwe, Tanzania, Liberia, Lesotho, South Africa, and the Philippines. She developed extensive experience in survey and questionnaire design, training field staff to collect questionnaire and biomarker data, monitoring fieldwork, and analyzing, writing, and disseminating survey results. In 2018, Dr. Lowell became The DHS Program’s first Senior Science Advisor. In this new role, she drafted and implemented The DHS Program’s Innovation Strategy. The Innovation Strategy emphasizes the importance of developing new tools, methods, and partnerships to meet data demand, protect and improve data quality, strengthen country capacity, contain costs, and save time. Dr. Lowell also serves as The Program’s point person on vaccination-related data. She has a Ph.D. in Biochemistry from University of Colorado and an MPH with a concentration in Infectious Disease from the Johns Hopkins Bloomberg School of Public Health. up-arrow

Senior Advisor for Research and Analysis

Dr. Pullum directs the research program, including the analysis of DHS data beyond the country reports, such as the analytical studies, comparative reports, further analysis studies, and methodological reports. He also has overall responsibility for The DHS Fellows Program and workshops. Current interests include maternal mortality and the measurement of child vulnerability. A continuing effort is the adaptation of demographic methods to statistical frameworks and software. His work with DHS has included methodological reports on data quality. He joined the DHS staff in 2011, following a lengthy career in academia, primarily at the University of Texas at Austin. Dr. Pullum has a Ph.D. in sociology from the University of Chicago. up-arrow

Senior Advisor for Communication

Ms. Nybro is a health communication specialist with 15 years of professional experience in designing communication strategies and products for a diverse range of audiences. She is responsible for the overall management of global and country-level dissemination of DHS data with the ultimate goal of increasing data use for decision making. Ms. Nybro has been with The DHS Program since 2004 and has led the DHS team in digital communication activities, including the development of the new STATcompiler and mobile app. Ms. Nybro has worked to strengthen capacity in communication and dissemination of DHS data in multiple countries, including Myanmar, Lesotho, Tanzania, Ethiopia, and the Philippines. She has also trained international journalists to use DHS data accurately in reporting. She has a special interest in data visualization. Ms. Nybro has an M.P.H. in global maternal and child health from The University of North Carolina at Chapel Hill. up-arrow



Email addresses for The DHS Program staff are in this form: first name + last name
(Example: Jane Doe,


Download our Brochure

DHS 2021 brochure thumbnail