Dr. Ashwin Vasan is the Commissioner of the New York City Department of Health and Mental Hygiene. Dr. Vasan is a primary care physician, epidemiologist and public health expert with nearly 20 years of experience working to improve physical and mental health, social welfare and public policy for marginalized populations here in New York City, nationally and globally. Dr. Vasan began his career in global health, working at Partners in Health and the WHO, and most recently served as the President and CEO of Fountain House, a national mental health nonprofit. He serves as faculty at the Columbia University Mailman School of Public Health and Vagelos College of Physicians and Surgeons, and he continues to see patients at New York-Presbyterian Hospital.