Benjamin Martin, MD

Joseph Letzelter, M.D., is an orthopaedic surgeon at Children's National Hospital who specializes in hand and upper extremity surgery. He completed his undergraduate and medical education at Georgetown University in Washington, D.C. After completing his medical education he continued his training as an orthopaedic surgery resident at Georgetown University Hospital. He then went on to complete a fellowship in Hand and Upper Extremity Surgery at NYU’s Department of Orthopaedics. He also spent time training in New Zealand focusing on wrist and forearm post-traumatic pathology. He most recently finished a fellowship in Pediatric Hand and Upper Extremity Surgery at Shriner’s Hospital in Northern California.

Eugene (Gene) Hwang, M.D., is the Associate Division Chief, Oncology at Children's National Hospital, focusing on treating children with brain tumors. He is the site Principal Investigator of the Pediatric Brain Tumor Consortium, where he is the co-chair of the Immunotherapy Working Group.

Diego Preciado, M.D., Ph.D., is chief of the Division of Pediatric Otolaryngology at Children's National Hospital. He is a professor with tenure at Children’s National Hospital and George Washington University.