Roy Coar was walking across Broadway near Locust Drive when he was struck by a southbound 2004 Honda Accord at 4:45 p.m., police said. Coar was taken to Good Samaritan Hospital Medical Center in West Islip, where he was pronounced dead.
The vehicle was impounded for a safety check.
Police are asking anyone with information regarding the accident to call First Squad detectives at 631-854-8152 or Crime Stoppers at 800-220-TIPS. All calls will remain confidential, police said.