Dr. Jay Bhattacharya is a physician, health economist, and professor at Stanford University. He co-authored the Great Barrington Declaration, becoming a leading voice in debates over pandemic policy and the balance between public health measures and individual liberty. In 2025, he was appointed Director of the National Institutes of Health, placing him at the helm of the world’s largest public funder of biomedical research. His career has made him one of the most influential and debated figures in contemporary American public health.