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Harvard Chan Executive and Continuing Education Faculty

John Brownstein
Headshot of Harvard guest faculty, John Brownstein

John Brownstein is an epidemiologist and senior leader at Boston Children's Hospital, currently serving as both Senior Vice President and Chief Innovation Officer. He also holds a professorship at Harvard Medical School and is a Medical Contributor at ABC News. In addition to his current roles, John has a background in entrepreneurship, having co-founded Circulation, Inc. (acquired by Modivcare) and Epidemico (acquired by Booz Allen Hamilton), and has served as a healthcare advisor to Uber. View John's LinkedIn profile here: https://www.linkedin.com/in/john-brownstein/

Ian Bunker

Senior Business Development Executive at Terracon | AI Thought Leader | Global Adventurer Ian Bunker is a business strategist and national AI presenter, helping industries harness artificial intelligence to drive smarter decisions and operational efficiency. As a Senior Business Development Executive at Terracon, he brings innovation, technology, and communication together to streamline complex projects and deliver real results. Ian has presented to Fortune 500 companies, multiple national conferences, and industry leaders, turning AI from a futuristic buzzword into practical strategies that drive impact. His presentations cut through the noise, making AI accessible, ethical, and immediately useful for organizations looking to stay ahead…

Laura G. Burke

Laura G. Burke, MD, MPH, is an attending emergency physician at Beth Israel Deaconess Medical Center and an Instructor of Emergency Medicine at Harvard Medical School. Dr. Burke received her MD from the University of Massachusetts and trained in Emergency Medicine at Beth Israel Deaconess Medical Center in Boston where she also served as Chief Resident. She completed a Zuckerman fellowship in the Center for Public Leadership at Harvard University and received her M.P.H. from the Harvard School of Public Health. Her prior research has focused on the impact of healthcare policy changes on emergency care. Her current projects are…

Lisa Burke
A. Enrique Caballero

A. Enrique Caballero, MD is an Endocrinologist, Investigator, Faculty Director of International Innovation Programs, Faculty Director of Diabetes Education in the Office for External Education and Associate Professor of Medicine at Harvard Medical School. He founded and directed the Latino Diabetes Initiative at the Joslin Diabetes Center and is currently Director of Latino Diabetes Health in the Division of Endocrinology, Diabetes and Hypertension and Associate Scientist in the Division of Global Health Equity at the Brigham and Women’s Hospital in Boston. He is also the Chair for the Health Care Disparities Committee at the American Diabetes Association. 

Zan Calhoun
Jack P. Callaghan

Jack P. Callaghan holds the rank of Professor at the University of Waterloo. He received his PhD from the Faculty of Applied Health Sciences at the University of Waterloo in 1999. From 1998 to 2003 he was a faculty member in the Department of Human Biology at the University of Guelph. In 2003, he was awarded a Canada Research Chair in Spine Biomechanics and Injury Prevention (Tier 2, Natural Sciences and Engineering Research Council of Canada) and returned to the Kinesiology department at the University of Waterloo. He has also received an Ontario Distinguished Researcher Award and Canada Foundation for…

Ray Campbell
Headshot of Harvard guest faculty Ray Campbell

Ray Campbell is the President of FAIR Health, a national nonprofit organization with the country’s largest repository of healthcare claims data. Ray is also an Instructor in the Department of Health Policy & Management at the Harvard T. H. Chan School of Public Health where he teaches the class “Health Data and Public Policy.”Ray is a lawyer with extensive experience in public policy, health data, and executive leadership. From 2016 through 2022, Ray was the Executive Director of the Massachusetts Center for Health Information and Analysis (CHIA), an independent regulatory agency with extensive authority to collect data and perform analyses of the…

Debra A. Canales
Richard A. Cash