He currently serves as the Irene and Dr. Arthur M. Fishberg Professor of Medicine, the Vice Chair for Research in the Department of Medicine and as an Associate Director for the Medical Scientist Training Program in the Icahn School of Medicine. He received his MD from Weill Medical College-Cornell University and his PhD at Rockefeller University studying human immunodeficiency virus type 1 (HIV-1) biology with the Nobel Laureate, Dr. David Baltimore. During his post doctoral fellowship at the Whitehead Institute for Biomedical Research with Dr. Peter S. Kim he studied HIV-1 assembly.