Regan Marsh, MD, MPH

Regan Marsh, MD, MPH, is an associate professor of emergency medicine at Harvard Medical School and associate medical director for health equity at Mass General Brigham.

Dr. Marsh earned her medical degree from the University of Pennsylvania and completed her emergency medicine residency at the Harvard Affiliated Emergency Medicine Residency. Her academic interests include health equity, diversity, equity, and inclusion, and global health.

She is a leader in health equity, with roles including medical director of the Office of IDEaS (Inclusion, Development, Health Equity, Advocacy and Support), director of the R. Nesson Fellowship in Community Health at Brigham and Women’s Hospital, medical director of quality, safety, and equity, and senior strategic advisor with Partners In Health.

Her research, supported by the National Institutes of Health and the Health Resources and Services Administration, focuses on advancing equity in emergency care through the design and evaluation of emergency department–based interventions that address structural barriers and improve care transitions. She has received multiple honors, including Mass General Brigham Pillars of Excellence Awards and the Faculty Development and Excellence Award at Brigham and Women’s Hospital.