David Siegel M.D., F.A.A.P., is a board-certified pediatrician from the New York metropolitan area. After earning his bachelor's degree in biological sciences from the State University of New York at Stony Brook, he attended medical school at New York Medical College and completed his pediatric residency at the Montefiore Hospital of the Albert Einstein School of Medicine. He has had a multi-faceted career, spanning 30 years as a clinician, educator, and administrator in academic and community-based settings. As a clinician, he worked in the outpatient, emergency, and inpatient settings. As an educator/administrator, he became an ambulatory attending physician at the Children's National Medical Center immediately following completion of his residency program; he then had a major role in the development and management of a new pediatric residency program at INOVA Fairfax Hospital for Children as the associate residency director and was the inpatient director at Connecticut Children's Hospital. Following the events of September 11, 2001, while working in the emergency department at the Children's National Medical Center, he initiated and managed the development of a pediatric preparedness training program, which dealt with the medical consequences of weapons of mass destruction, conducted through a grant from HRSA. Dr. Siegel joined the NICHD in October 2007 and, in addition to his functions as a medical officer, will be the Institute's program director for Chemical, Biological, Radiological/Nuclear, and Explosive Incidents.