David A. Williams, MD

Chief, Division of Hematology/Oncology

Boston Children’s Hospital

Associate Chairman, Department of Pediatric Oncology

Dana Farber Cancer Institute

Leland Fikes Professor of Pediatrics

Harvard Medical School

Dr. Williams is the Chief of the Division of Hematology/Oncology, and the Leland Fikes Professor of Pediatrics at Harvard Medical School. He is a member of the National Academy of Medicine and has published over 300 peer-reviewed manuscripts and chapters. He is involved in gene therapy trials for genetic diseases. His laboratory’s basic research focuses on hematopoiesis. His research has described the molecular basis of two rare immunodeficiency diseases due to mutations of RAC2 and RHOH, members of the RHO GTPase family. Dr. Williams is a past President of the International Society of Experimental and the American Society of Hematology.