Dr. Jason A. Klein is a pediatric endocrinologist in New York, New York and is affiliated with multiple hospitals in the area, including Hassenfeld Children’s Hospital at NYU Langone and NYC Health and Hospitals-Bellevue. He received his medical degree from State University of New York Downstate Medical Center College of Medicine and has been in practice between 11-20 years. Dr. Jason A. Klein accepts Aetna, Cigna, Blue Cross, United Healthcare - see other insurance plans accepted.