Dr. Schiffer earned his BA cum laude at Brandeis University and his M.D. at New York University School of Medicine. He completed his internship, residency, and chief residency in Internal Medicine at Bellevue Hospital under the auspices of New York University School of Medicine and had subsequent training and positions at the Baltimore Cancer Research Institute, National Cancer Institute and the University of Maryland School of Medicine, where he served as Chief of the Division of Hematology. He has also served as Chief of the Division of Hematology/Oncology and Director of Clinical Research at the Karmanos Cancer Institute.