psychiatry Peter H. Gruen Posted by Marquis Who's Who on March 23, 2019 Most Recent Title: Psychiatrist, Educator Company: Bronx Municipal Hosp. Ctr. Industry: Psychiatry Years in Industry: 53 Years affiliated with Marquis Who’s Who: 14 Contact Peter H. Gruen: Go backYour message has been sent Name(required) Warning Email(required) Warning Website Warning Comment(required) Warning Warning. Submit Δ Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading... Related