Faculty
Faculty
GHDI Faculty Directors

Dr. Rhatigan is Chief of the Division of Global Health Equity and Director of the Hiatt Global Health Equity Residency Program. Dr. Rhatigan graduated from Harvard Medical School and completed his residency in Internal Medicine at Brigham and Women’s Hospital, where he practices hospital medicine. He has held several leadership positions in post-graduate medical education. As one of the key faculty members of the Harvard Global Health Delivery Project, he examines the delivery of health services in low-resource settings through case studies. He is one of the co-directors of Harvard’s summer program in Global Health Effectiveness and an Associate Professor at Harvard Medical School and the Harvard School of Public Health.

Rebecca Weintraub, MD is the Founding Director of the Global Health Delivery Project at Harvard University and co-leads the Global Health Delivery Intensive. She is an Associate Professor in the Department of Global Health and Social Medicine at Harvard Medical School and an associate physician at Brigham and Women’s Hospital.
She launched the Better Evidence Program at Ariadne Labs to design, test, and scale strategies to equip the current and future health workforce with the latest evidence to make better decisions and improve health outcomes. Dr. Weintraub leads the Cases in Global Health Delivery, a collection of free, Harvard Business School-style teaching cases that allow readers and students to examine real-life programmatic, organizational, and policy-related decisions in low resource settings. The Case library builds critical thinking and analytical skills and continues to be integrated at Schools of Medicine, Business and Public health. In the midst of the pandemic, Dr. Weintraub expanded her portfolio, building tools adopted by State governments and the CDC to plan for the equitable distribution of COVID-19 vaccines.
Weintraub is currently on the Council for Quality Health Communication and the CSIS Bipartisan Alliance for Global Health Security on Routine Immunizations and Global Health Security. She advises public health departments, employers, HHS, and Ministries of Health. Her work has been published in the New England Journal of Medi…
GHDI Faculty

Joia Mukherjee MD, MPH is the Chief Medical Officer for Partners In Health (PIH), an international medical charity dedicated to providing a preferential option for the poor in healthcare. She is an internist, paediatrician, public health and infectious disease specialist and an Associate Professor at Harvard Medical School. Dr. Mukherjee has been Chief Medical Officer of PIH since 2000, supporting PIH’s efforts to provide high quality, comprehensive health care to the poorest and most vulnerable in partnership with local communities and health officials. Dr. Mukherjee’s clinical focus in resource-poor settings has been HIV/AIDS, multi-drug resistant tuberculosis, mental health and most recently, Ebola. She is involved in the direct implementation of health programs and disease specific initiatives across PIH’s 10 focus countries, as well as research and the generation of new knowledge in these arenas. In 2014, Dr. Mukherjee was one of the lead strategists in launching PIH’s efforts to fight Ebola and strengthen health systems in Sierra Leone and Liberia.

Courtney Yuen, PhD, is an assistant professor at Harvard Medical School and an associate epidemiologist in the Division of Global Health Equity at the Brigham and Women’s Hospital. Prior to this, she worked in the Division of Tuberculosis Elimination at the U.S. Centers for Disease Control and Prevention. Dr. Yuen has been involved in important research on the global epidemiology of childhood drug-resistant tuberculosis, contributing to estimates of the global burden of childhood multidrug-resistant and isoniazid-resistant tuberculosis and the risk of disease among children who live in the households of adults with drug-resistant tuberculosis. She has worked with tuberculosis programs in both the United States and international settings to help them effectively implement contact investigations and preventive therapy. She currently works with partners in Kenya and Peru to implement and measure the impact of tuberculosis case-finding and preventive therapy interventions.
GHDI Guest Faculty
GHD guest faculty are core members of the GHDI program, providing expertise in key areas of global health delivery. Their professional roles include clinical providers, managers, technocrats, policymakers, engineers, faculty members, among many others. We are honored to have welcomed the following guest faculty members since GHDI’s inception in 2008.

Dr. Atun is Professor of Global Health Systems and the Director of the Health System Innovation Lab at Harvard University at Harvard University. In 2015-2022 he served as the Faculty Chair for the Harvard Ministerial Leadership Program. In 2008-12 he was a member of the Executive Management Team of the Global Fund as the Director of Strategy, Performance and Evaluation, where he chaired the panel that made investment decisions for ~$4-5 billion each year in 120+ countries.
In 2006-13 Dr. Atun was a Professor of International Health Management at Imperial College London and Head of the Health Management Group.
Professor Atun’s research focuses on health systems performance, design and innovation. He has published more than 450 articles in leading journals including NEJM, Nature Medicine, Lancet, Lancet Oncology, JAMA, and Academy of Management Journal. He has led and participated in 15 Lancet Commissions. In 2020, 2021 and 2022 he was recognised by Web of Science as one of the World’s Most Highly Cited Researchers.

Dr. Cohen is a health and behavioral economist whose research uses randomized controlled trials and other rigorous quasi-experimental methods to evaluate the impact of maternal and child health programs and policies, both in the United States and East African countries. Dr. Cohen’s research explores the behavioral channels by which health policies translate into health outcomes, with the aim of embedding this evidence into policy design and increasing policy impact. Dr. Cohen has conducted randomized controlled trials to evaluate the impact of incentives, subsidies, information, and decision architecture on health seeking behavior and health outcomes in the domains of malaria and maternal health from the prenatal through the postnatal period. Her research uses concepts from economics and psychology to explore drivers of critical health behaviors including maternity care seeking, postpartum contraception, and child nutrition. She also has used various quasi-experimental designs to evaluate the impact of large health policy and health system changes on population health, including malaria pharmaceutical subsidy policies and maternity provider payment models. Current work explores drivers of maternity provider behavior, including quality of care during labor and delivery and provision of postpartum contraception.

Dr. Mary-Ann Etiebet has two decades of experience improving healthcare outcomes for underserved populations and transforming healthcare delivery at the frontlines. She is the incoming President & CEO of Vital Strategies, a global public health organization. She previously served as AVP for Health Equity at Merck and the Lead of Merck for Mothers*, Merck’s $500M global health initiative to help create a world where no woman has to die giving life. Since 2011, Merck for Mothers programs and partnerships have resulted in healthy pregnancies and safe deliveries for over 20M women in over 60 countries.
Building on her experiences as a physician, innovator, funder and advocate across the public, private and global development sectors, Dr. Etiebet brings a diverse set of perspectives to advancing health equity. She joined Merck in 2016 from Premier Inc, where she advanced health equity through population health management and value-based care initiatives. Previously, she served as an HIV physician and health system administrator leading quality improvement and community & care delivery transformation initiatives in the NYC public sector, a global public health practitioner leading PEPFAR supported clinical programs, and as Assistant Professor, in the Division of Infectious Disease at the University of Maryland School of Medicine.

Jarrod Goentzel is founder and director of the MIT Humanitarian Supply Chain Lab in the MIT Center for Transportation & Logistics. His research focuses on meeting human needs in resource-constrained settings through better supply chain management, information systems, and decision support technology. Dr. Goentzel leads fieldwork in a range of contexts to develop insights that improve response efforts during emergencies and strengthen supply chains in vulnerable communities. Research involves direct engagement with the private sector, government agencies, humanitarian, international development, and community organizations on several continents. Dr. Goentzel has created residential and online courses and in humanitarian logistics, international operations, and supply chain finance, and has extensive experience using simulation games to build intuition and leadership skills.
Previously, Dr. Goentzel was Executive Director of the MIT Supply Chain Management (SCM) Program, a nine-month master’s degree program. He joined MIT in 2003 to establish the Zaragoza Logistics Center in Spain, which was the first node in the MIT Global SCALE Network. He received a Ph.D. from the School of Industrial and Systems Engineering at the Georgia Institute of Technology.

Dr. Lisa Hirschhorn a Professor of Medical Social Sciences at Northwestern University in the Feinberg School of Medicine and is the Senior Director of Implementation and Improvement Science at Last Mile Health. Prior to these roles, she served as the Director of Implementation and Improvement Science at Ariadne Labs, Associate Professor of Medicine at Harvard Medical School, Associate Physician at the Division of Global Health Equity, Visiting Scientist at Harvard School of Public Health, and Senior Policy Advisor for Improvement Sciences at Partners In Health. Throughout her career, Dr. Hirschhorn has focused on monitoring, evaluating and improving access, utilization and outcomes of HIV and primary care in resource limited settings and strengthening and evaluating quality improvement in people-centered care. She works to understand and improve health disparities across the world using implementation research to bridge gaps and increase evidence-based decision making. Dr. Hirschhorn received her A.B from Harvard University and her M.D. from Columbia University. She completed her fellowship in Infectious Diseases at the Beth Israel and Brigham and Women’s Hospitals. Dr. Hirschhorn also holds a M.P.H from the Harvard School of Public Health.

Jonathan Jackson is the Co-Founder and Chief Executive Officer of Dimagi. As the CEO of Dimagi, Jonathan oversees a team of global employees who are supporting digital solutions in the vast majority of countries with globally-recognized partners. He has led Dimagi to become a leading, scaling social enterprise and creator of the world’s most widely used and powerful data collection platform, CommCare.
An award-winning social entrepreneur and software engineer, Jonathan made an uncompromising commitment early in his career to developing open technology that creates maximum impact and good in the world. He has since gone on to found multiple organizations focused on leveraging technology to improve healthcare delivery worldwide, including Cogito Corp, a pioneering behavioral analytics company.
Jonathan is a Schwab Foundation Social Entrepreneur and has been recognized by Business Week as one of the Most Promising Social Entrepreneurs. He currently sits on the boards of SimPrints and Spark Micro Grants. Jonathan earned his bachelor’s and master’s degrees in Electrical Engineering and Computer Science from the Massachusetts Institute of Technology.

As the co-founder and CEO of Seed, Vanessa Kerry leads the organization in fulfillment of our mission—to help strengthen health systems and improve health outcomes for all. Her work stems from her interest in capacity-building to strengthen public sector health systems and communities in resource poor settings. She believes deeply that health is fundamental to economic, social wellbeing, and national security.
Through partnership with governments and in-country institutions, under Vanessa’s tenure, Seed has helped train close to 30,000 doctors, nurses, and midwives and has impacted hundreds of thousands of lives. At Seed, Vanessa helped establish the Global Health Service Partnership (GHSP), a first ever public-private partnership with the Peace Corps, the President’s Emergency Plan for AIDS Relief (PEPFAR) and the countries where the program works. GHSP supported health systems in five sub-Saharan African countries.
Her work has included innovative research in the nexus of national security, crisis response, and health including a two-year project with the North Atlantic Treaty Organization. She has taught courses on health, economy, politics, and security at the Kennedy School of Government and Yale University.

Merrick Schaefer is the Senior Digital Health Advisor at USAID’s Center for Innovation and Impact in the Global Health Bureau, where he operationalizing the Agency’s Digital Health Vision and leading the Digital Square mechanism. Previously he led the Development Informatics team where he helped lead the Lab’s Ebola efforts in using technology to improve disaster response and recovery and drive institutional change initiatives focused on improving the Agency’s ability to use technology in their programs. His work focuses on the intersection of technology and international development. Before joining the USAID he was a Senior Innovation Specialist at the World Bank and an mHealth Specialist at UNICEF where he was a founding member of the UNICEF Innovation Team. His work ranges from strategic program design to managing software development, as well as implementing programs in the field and the monitoring & evaluation of ICT4D projects. Three defining projects of his career were managing the development of the RapidSMS software framework, leading Programme Mwana in Zambia, one of the first mHealth programs to be scaled nationally and co-drafting and championing the Principles of Digital Development.

Rick Siegrist is adjunct lecturer on health care management at Harvard T. H. Chan School of Public Health where he teaches physician, graduate, and executive education courses on financial management, cost accounting, management control, innovation and entrepreneurship. He is also co-director of the master of science in health care management program for physicians and the director of innovation and entrepreneurship. He was previously CEO of Press Ganey Associates, SVP of WebMD, and co-founder and CEO of several healthcare startup companies. He is a board member and chair of the Finance Committee for UMass Memorial Health Care and for Massachusetts Health Quality Partners.

Prashant Yadav is a senior fellow at the Center for Global Development and Affiliate Professor of Technology and Operations Management at INSEAD. Yadav’s work focuses on improving healthcare supply chains and designing better supply chains for products with social benefits. He is the author of many peer reviewed scientific publications and his work has been featured in prominent print and broadcast media including The Economist, The Financial Times, Nature, and BBC. Yadav’s research papers have been the recipient of best paper awards from the Production and Operations Management Society, INFORMS, and scientific bodies.
Over the last 15 years, Yadav has worked closely with multiple country governments and global organizations in improving supply chains for medicines and health products. Yadav’s policy advisory roles have included: Strategy Leader-Supply Chain at the Bill & Melinda Gates Foundation, Chair of the Market Dynamics Advisory Group of the Global Fund, Co-chair of Procurement & Supply Chain Management at the Roll Back Malaria Partnership, Commissioner on the Lancet Commission on Essential Medicines. Yadav has been invited for expert testimony on issues related to medicine supply chains in the US Congress and legislative bodies in other countries. Yadav also serves on the advisory boards of many global organizations and social enterprises.