Not quite a one-stop shop for government data sets, but Data.gov is a good place to start if you’re looking for raw data. Data.gov is a searchable catalog for data sets such as WONDER (Wide-Ranging Online Data for Epidemiological Research) and for tools such as VitalStats, which allows you to create and manipulate tables based on birth and perinatal data files, compiled by the National Center for Health Statistics. There are over 80 datasets and nearly 30 data tools available, and more will be added.
The current data sets include not just health-related information but data on residential energy consumption and emergency preparedness, as well as information from the American Community Survey, and data concerning weather phenomena, geology, and economics.
For a more thorough review of the site, see the article at Information Today. You can go directly to www.data.gov to see what’s available, read the FAQ, and take a tutorial that will get you started quickly.