Dr. Nate Miller is a global health researcher and advisor with over 20 years of experience designing, implementing, and evaluating community health programs across Africa, Asia, and the Middle East. He holds a PhD in international health from Johns Hopkins University and master’s degrees in public health and international affairs from Columbia University.
At UNICEF, where he served as global lead for community health in emergencies from 2014 to 2024, Dr. Miller led an eight-country research initiative documenting how community health workers function in humanitarian settings, generating evidence that has informed global humanitarian health policy and practice. He also led the development of South Sudan’s national community health strategy, the Boma Health Initiative, now serving eight million people, and developed Somalia’s national community health worker program guidelines for the World Bank. He has held research and faculty roles at Johns Hopkins University and Columbia University, and has worked with Save the Children, USAID, and WHO. He is the author of 24 peer-reviewed publications on community health systems, implementation science, and health in humanitarian settings, including a 2026 paper in the Lancet Primary Care on building community health worker systems ready for AI integration.
For the past two years, Dr. Miller has focused on practical AI applications in global health, advising and training organizations, including WHO, Georgetown University, and George Washington University. He founded The AI & Global Health Hub, a resource platform for global health professionals, and is leading a literature review on AI in community health worker programs.
Dr. Miller’s Fulbright Global Scholar project is a five-month comparative study across Kenya, Rwanda, and India, three countries at the forefront of integrating AI into community health worker programs. Through direct observation of health workers using AI tools, key informant interviews with those who design and run these health worker programs, and stakeholder workshops, he is documenting which implementation practices transfer across health systems and which require local adaptation, with the aim to produce open-access guidance for program managers and policymakers worldwide.