Medicare Basic Stand Alone Claims Files

The Basic Stand Alone (BSA) files are de-identified data files available for public use based on the 5% sample fee-for-service claims files. They contain non-identifiable claim-specific information and are within the public domain.  The (BSA) files that are available include Inpatient, Skilled Nursing Facility (SNF), Outpatient, Home Health Agency, Hospice, Carrier, Durable Medical Equipment (DME), Prescription Drug Event, and Chronic Conditions.

For more information or to order these files, please visit the CMS website:

2008, 2010

2010 files for all file types will be available by late summer 2012.

Data File Classification