He attended UMDNJ-New Jersey Medical School and then went on to complete his residency at Hospital of the University of Pennsylvania. Dr. Greenberg's clinical interests include intensity-modulated radiation therapy (IMRT), lung cancer, and gamma knife radiosurgery. He is an in-network provider for Blue Cross/Blue Shield, Coventry, United Healthcare HSA, and more. He is professionally affiliated with Princeton HealthCare System and St. Mary's Hospital. His practice is open to new patients.