Portrait of Jack Orloff, MD. Dr. Orloff received his MD from New York University School of Medicine in 1943. From 1974 to 1988, he was the scientific director of the Division of Intramural Research at the National Heart, Lung, and Blood Institute at the National Institutes of Health. Orloff was a leader in advancing the discipline of physiology. His work included investigations in acidification of the urine, hypokalemic alkalosis, the metabolism and excretion of ammonia and the endocrine control of sodium excretion.