Connect with Top-Rated Psychotherapists in Hewlett!

Dr. Marc J. Diener is a New York State Licensed Psychologist providing individual therapy, psychological testing, and consultation services. He specializes in treating individuals experiencing depression, anxiety, relationship difficulties, and substance use. He also provides consultation services for statistics, research methods, and writing. Dr. Diener is a full professor at Long Island University-Post and has extensive experience in research and publication. He offers his services from his offices in Hewlett, Roslyn, and Great Neck, NY.