David J. Cohen, MD, MA is the Daniel Midler-John A Catsimatidis Professor of Nephrology (in Medicine) and the Medical Director of Kidney and Pancreas Transplantation at Columbia University Irving Medical Center/New York Presbyterian Hospital. New York, NY. He graduated from Albert Einstein College of Medicine and did his Internship and Residency in Internal Medicine at Mt Sinai Medical Center in NYC. He completed his Nephrology training at Columbia University, followed by a Research Fellowship in Transplantation and Immunogenetics at the Brigham and Women’s Hospital, Boston MA.