جامعة روكفلر
After leaving Geigy in 1967, he worked briefly at the Albert Einstein College of Medicine and Vanderbilt University before taking a position as Professor in the Department of Pharmacology at Yale University. In 1983 he joined the faculty of The Rockefeller University. Greengard was a member of the Board of Scientific Governors at The Scripps Research Institute. He was the acting chairman of the Fisher Center for Alzheimer's Research Foundation and served on the board of the Michael Stern Parkinson's Research Foundation, which later merged with The Michael J. Fox Foundation. Both internationally renowned foundations support the research conducted in the Greengard laboratory at The Rockefeller University.