Board Certified in Couple therapy by the American Board of Professional Psychology, Dr. Block is a senior psychologist on the staff of the North Shore-Long Island Jewish Medical Center and an Assistant Clinical Professor (Psychology/Psychiatry) at the Hofstra North Shore-LIJ Medical School. Dr. Block is a Fellow of the American Psychological Association (Couple and Family Psychology) and for twenty years he was the training supervisor of the Sexuality Center at Long Island-Jewish Medical Center. Dr. Block is the author of over 20 books on Love and Sex, his specialty.