He is also on clinical faculty at UCSF on the bone marrow transplant service and is a lecturer for the Stanford Bioengineering program. Daniel graduated cum laude from Brown University, and received his medical degree from Stanford University, where he was also a Howard Hughes Research Fellow, and graduated with honors in research. He went on to complete a combined residency at Harvard in Internal Medicine and Pediatrics at the Massachusetts General Hospital and Boston Children's Hospital, followed by fellowships in hematology/oncology and bone marrow transplantation at Stanford. He is currently funded by the NIH and conducting research in the laboratory of Irv Weissman.