long Island Anger Management, Inc Share: Health/Medical/Dental long Island Anger Management, Inc Visit Website Request Info 91 E 2nd St, Riverhead, NY 11901 Riverhead, New York 11901 6316756306 About Map About We are an exclusive certified Anger Management Program. We provide Individual, Online and group Anger Management Coaching. Most of our clients are self referred, but we also accept mandated clients. What's Nearby? Distance: 5 10 15 20 25 50 mi.