State Health Insurance Assistance Program- counseling on Medicare for NJ residents. Find out how and when to enroll for Medicare. Learn the difference between Original Medicare and Medicare Advantage Plans. Discover how Medicare Part A, Part B and a Medigap plan work together. Find the best Part D Drug plan for you. See if you are eligible for Extra Help to assist with Medicare Premiums. Get help with Medicare claims. For an appointment, contact Reference, x4.