Robert Greenstein, associate professor emeritus of psychiatry in the University of Pennsylvania’s School of Medicine, died November 8 at the age of 76.

Dr. Greenstein earned a bachelor’s degree from Villanova University in 1962 and a medical degree from Thomas Jefferson University in 1966.

He joined the Philadelphia VA Medical Center in 1974 as a clinician and investigator in the Center for Studies of Addiction. He contributed to a study of opiate receptor antagonists in the 1970s and ’80s. At PSOM, he became assistant clinical professor in 1976; clinical assistant professor in 1979; and clinical associate professor in 1985. He was also director of HUP Outpatient Psychiatry Service in the late 1980s and ’90s. In this role, he trained many psychiatry residents.

He joined the 25-Year Club in 1998 (Almanac November 24, 1998). In 2003, he received the Blockley-Osler Award from the School of Medicine, which recognizes a faculty member for excellence in teaching modern clinical medicine (Almanac April 29, 2003).

He was named associate professor emeritus of psychiatry in 2005 (Almanac July 12, 2005).

He is survived by his wife, Erica, two daughters, Karen and Jane and four grandchildren. A memorial in Philadelphia is planned for March 19.