The chief medical doctor and health educator for the United States. The mission of the U.S. Surgeon General is to give the public the best scientific information available on how to improve health and lower the risk of illness and injury. The U.S. Surgeon General oversees the U.S. Public Health Service and is chosen by the U.S. President. Each state public health agency and branch of the U.S. military also has its own Surgeon General. The office of the U.S. Surgeon General is part of the Department of Health and Human Services (DHHS).