You have Robert Wood Johnson in New Brunswick NJ, MSKCC has a satellite office in Basking Ridge NJ, in addition too Manhattan, Beth Israel Mt Sinai in Union Square Manhattan, and Mt. Sinai on Madison Ave, and New York Presbyterian.
Here is U.S. News Report Best Hospital Listings in each speciality like cancer, and Ear, Nose and Throat, in addition to NCI, and NCCN designated cancer centers.
http://health.usnews.com/best-hospitals/rankingsGood luck