Denise Koo, M.D., M.P.H., is Advisor to the CDC Associate Director for Policy. She led the development of the recently released CDC Community Health Improvement Navigator, which provides an important unifying framework and tools to support hospitals and health systems, public health, and other stakeholders interested in improving the health of their communities. Prior positions at CDC include leading the Division of Public Health Surveillance and Informatics and the Division of Scientific Education and Professional Development. Dr. Koo holds appointments as Adjunct Professor of Global Health and of Epidemiology, Rollins School of Public Health, Emory University, and Consulting Professor, Department of Community and Family Medicine, Duke University Medical Center.