Megan L. Ranney MD MPH is an emergency physician, researcher, and leading voice for innovative approaches to public health. She is the Dean of the Yale School of Public Health, the C.-E. A. Winslow Professor of Public Health, and a Professor of Emergency Medicine at Yale University. Dr. Ranney is the first Dean to lead the school since its independence in 2024. Under her leadership, the school is pursuing a bold new strategic vision of linking science and society, making public health foundational to communities everywhere.

Dr. Ranney has been a national leader in restarting the science of firearm injury prevention as a health issue after a 24-year pause in federal funding. Her work on violence prevention, the use of technology to augment prevention, and the role of systems-level change in enhancing care has been published over 200 times in journals such as NEJM, JAMA, and Nature. She is an elected member of the National Academy of Medicine and the Connecticut Academy of Science and Engineering, a Fellow of the American College of Emergency Physicians, and a member of the Aspen Global Leadership Network, in recognition of her scientific impact.

In addition to her scholarly work, Dr. Ranney has harnessed social media to spark large public health movements. She started two successful non-profits and serves as a board member on national and international organizations that work to use science to reduce firearm injury, improve science communication, and enhance emergency care, among other leadership roles. Dr. Ranney has also shaped bipartisan policy and public opinion. She has provided Congressional testimonies and other expertise to the U.S. Surgeon General and the White House across multiple presidential administrations. She is a sought-after media presence, with hundreds of national and international appearances that translate public health messages and science for the public.

Dr. Ranney graduated from Harvard University with a Bachelor of Arts (summa) in History of Science.  She served as a Peace Corps Volunteer in Cote d’Ivoire prior to attending medical school at Columbia University College of Physicians & Surgeons in NYC.  She graduated with AOA status and received the Leonard Tow Humanism in Medicine award on graduation. She completed internship, residency, and chief residency in Emergency Medicine, as well as a fellowship in Injury Prevention Research and a Master of Public Health, at Brown University.