US Veterans Health Administration Sites
This map shows the locations of Veterans Health Administration sites.  The Department of Veterans Affairs (VA) provides healthcare services to its veterans across the USA including territories and possessions.  The data is symbolized in this map by the primary service offered at a given location.  These include:  Hospitals, Community Based Outpatient Clinics (CBOCs), Veterans Centers, Integrated Operations Centers (IOCs), Residential Rehabilitation Treatment Programs (RRTPs) and VA Nursing Homes.  Note that at smaller scales (above 1:10,000,000), the CBOCs are turned off to enable a faster draw time due to the large quantity of these features.  Features are labeled at scales larger than 1:100,000.

Healthcare services are delivered through 21 geographically divided administrative areas called Veterans Integrated Services Networks (VISN). Each VISN contains a number of Veterans Health Administration (VHA) health care delivery sites. Key information about these sites is created and maintained in the Veterans Affairs Site Tracking (VAST) database, which serves as the official repository of data on the number and location of VHA's sites of health care delivery including medical centers, hospitals, nursing homes, domiciliary residential rehabilitation treatment programs, outpatient clinics, and vet centers. The original VAST database was created by the Planning Systems Support Group (PSSG) in 1999 and it is updated on a continuous basis. This dataset provides a spatial representation of the information contained in the VAST database at the publication date. The key attribute in this data set is Station Number which is defined as a string of 3-7 characters with unique alphanumeric combinations for each site. If the string is only 3 characters, it is designated as a parent facility. If the string is 5 characters long, the first 3 characters refer to its parent facility and the last 2 characters designate it as a Community Based Outpatient Clinic (CBOC) or other supporting health care delivery site to a parent facility. If the string is 7 characters long, the first 3 are for its parent facility, the next 2 designate it as a supporting health care delivery site, and the last 2 characters designate it as a satellite or an additional access point for the supporting health site. Example: '402' is a parent facility in Maine. '402HB' is an associated CBOC located in a different town in Maine. '402HB01' stands for a satellite clinic also in a different town that is associated with the parent facility's CBOC.

The data is from 2011 Q4.
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