Dr. Jason Klein is a board-certified pediatric endocrinologist in New York, NY and is affiliated with multiple hospitals in the area, including NYU Langone Hospitals, NYU Langone Health — Brooklyn, and NY Health + Hospitals / Bellevue. He received his medical degree from State University of New York Downstate Medical Center College of Medicine and has been in practice 9 years. He is experienced in gender-affirming care, including the use of pubertal blockers and gender-affirming hormone treatment, growth disorders, hypothyroidism, diabetes, and other aspects of pediatric endocrinology & diabetes care.