Kathryn Brinsfield, M.D. is the medical director for Homeland Security, Boston EMS, for the Boston MMRS, and for the DelValle Emergency Preparedness Training Institute. She is co-chair of Massachusetts Surge Committee. She is also the supervisory medical officer for the International Medical and Surgical Response Team, and the Massachusetts–1 Disaster Medical Assistance Team. Dr. Brinsfield responded with these groups to Ground Zero on September 11th, as well as to numerous other deployments. She is an associate professor at the Boston University Schools of Medicine and Public Health. She graduated with honors from Brown University, received her M.D. degree from Tufts School of Medicine, and her M.P.H. degree from Boston University