Ellen Leschek is a pediatric endocrinologist. After completing her pediatric endocrinology fellowship at the National Institutes of Health (NIH), she continued on at the NIH as a clinical researcher. She conducted clinical studies in the area of growth and puberty for 10 years, then moved into a position overseeing clinical trials in type 1 diabetes, type 2 diabetes, and atypical diabetes. During her tenure at the NIH, she served as a pediatric endocrinology clinic attending physician, where she mentored fellows, residents, and students. She retired from the NIH after 33 years of service. When she is not working, Dr. Leschek enjoys spending time with her husband, two daughters (and their spouses), and two grandsons.