The U.S. Department of Health and Human Services (HHS) protects the health of all Americans and provides essential human services, especially for those least able to help themselves... 

http://www.hhs.gov/

Official web portal of the US government. Contains comprehensive information on government resources, services and forms for citizens, businesses and government. USA.gov can help you start your search for government information by topic and agency... 

http://www.usa.gov/