In addition to his stepdaughter Ms. Klein, Dr. Stern is survived by his wife, Betty Lee (Baum) Stern; two children, Debra Marrone and Scott Stern, from his first marriage, which ended in divorce; two other stepchildren, Lauren Rosenkranz and Jonathan Otto; and 13 grandchildren.
Dr. Stern was introduced to Jack Valenti, the president of the Motion Picture Association, by a neighbor in Great Neck, N.Y., Robert Benjamin, an executive at United Artists. Dr. Stern initially began reviewing films for the association and was recruited by Mr. Valenti to run the ratings administration in mid-1971.
He left there early in 1974 to join Columbia Pictures Industries and eventually returned from Los Angeles to New York, where he revived his private practice. He also taught at Yale, Columbia, New York University and the University of California, Los Angeles, and he served as chief operating officer of Tiger Management, a hedge fund, and a trustee of the Robertson Foundation.
A veteran educator at NewYork-Presbyterian/Columbia University Irving Medical Center, Dr. Stern, with his wife, donated $5 million in 2019 to endow a professorship and fellowship at Weill Cornell Medicine to treat patients with pathological personality disorders. The gift was in gratitude for the care he had received during a medical emergency.
As a psychiatrist, Dr. Stern had been interested in narcissism even before he went to Hollywood, but his experience there, jousting with egocentric studio executives, producers, directors and actors, proved inspirational, leading him to write “Me: The Narcissistic American,” published in 1979.
In that book he wrote that babies are born narcissistic, unconcerned about whom they awaken in the middle of the night, and need to be disciplined as they mature to take others into account.