Requesting CMS's Limited Data Set (LDS) Files

LDS Requesters must submit to CMS the following request materials:

Written request letter
2-3 page research application
LDS Data Use Agreement (DUA)
LDS Order Form
Check or money order for payment in full

LDS file request packets should be sent to:

a. Mailing Address if using U.S. Postal Service
    Centers for Medicare & Medicaid Services
    Public Use Files
    Accounting Division
    P. O. Box 7520
    Baltimore, Maryland 21244-1850

b. Mailing Address if using express mail (Federal Express, Airborne, etc.)
    Centers for Medicare & Medicaid Services
    OFM/Division of Accounting-PUF
    7500 Security Boulevard, C3-07-11
    Baltimore, Maryland 21244-1850

The LDS file request process can also be found on the CMS website.

Last Modified November 6, 2008