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NOTICE: Effective December 1, 2004, 3480 cartridges will no longer be available as a media choice. Cartridge choice will be 3490e only.

The Centers for Medicare & Medicaid Services (CMS) is responsible for administering the Medicare, Medicaid and State Children's Health Insurance Programs, as well as a number of health oversight programs. CMS gathers and formats data to support the agency's operations. Information about Medicare beneficiaries, Medicare claims, Medicare providers, clinical data, and Medicaid eligibility and claims is included. This data is made available to the public, subject to privacy release approvals and the availability of computing resources.

Our data is presented on this site by the level of privacy review required for release. Each of the three categories has its own process for requesting data.

  1. Identifiable Data Files contain actual beneficiary-specific and physician-specific information. Identifiable Files require a formal request to be submitted to CMS for approval.

    NOTE: Please read the CMS Data Disclaimer - User Agreement - Privacy Protected Data (PDF, 45K) which contains important information regarding time frame for obtaining data.

    1. Standard Analytical Files (SAFs)
      1. Durable Medical Equipment (5% and 100%)
      2. Home Health Agency (5% and 100%)
      3. Hospice (5% and 100%)
      4. Inpatient (5% and 100%)
      5. Outpatient (5% and 100%)
      6. Physician/Supplier Part B (5%)
      7. Skilled Nursing Facility (5% and 100%)
    2. Hospital Outpatient PPS
    3. Hospital Outpatient PPS - Partial Hospitalization Program
    4. Medicare Provider Analysis and Review (MEDPAR) File
    5. Denominator File
    6. Name and Address and Vital Status File
    7. Medicare Current Beneficiary Survey (MCBS) - Access to Care File
    8. Medicare Current Beneficiary Survey (MCBS) - Cost and Use File
    9. Renal Management Information System (REMIS)
    10. Medicaid Analytic Extract (MAX)
    11. Long Term Care Minimum Data Set (MDS)

  2. Limited Data Set Files (LDS) are identical to the previous Beneficiary Encrypted Files, but they have been stripped of data elements that might permit identification of beneficiaries. These files contain beneficiary level health information but exclude specified direct identifiers as outlined in the HIPAA Privacy Rule.

    LDS Summary (PDF, 54K)

    NOTE: Please read the CMS Data Disclaimer - User Agreement - Privacy Protected Data (PDF, 115K) which contains important information regarding time frame for obtaining data.

    1. National MEDPAR
    2. State MEDPAR
    3. Skilled Nursing Facility (SNF) MEDPAR
    4. Outpatient PPS
    5. Outpatient PPS - Partial Hospitalization Program
    6. Inpatient Psychiatric PPS
    7. Denominator
    8. Standard Analytical Files:
      • Durable Medical Equipment (5%)
      • Home Health Agency (5% and 100%)
      • Hospice (5% and 100%)
      • Inpatient (5% and 100%)
      • Outpatient (5% and 100%)
      • Physician/Supplier Part B (5%)
      • Skilled Nursing Facility (5% and 100%)

  3. Non-Identifiable Data Files contain non-identifiable person-specific information and are within the public domain.

    NOTE: Please read the CMS Data Disclaimer - User Agreement - Public Use Data (PDF, 115K) which contains important information regarding time frame for obtaining data.

    1. Health Care Information System (HCIS) Data File
    2. Part B Extract Summary System (BESS) Data File
    3. Provider of Services File
    4. Hospital Service Area File
    5. Physician/Supplier Procedure Summary Master File
    6. Medicaid Drug Utilization by State by Quarter
    7. Unique Physician Identification Number Directory (UPIN)
    8. Cost Report Files


    Footnote: Enrollment Files - Annual County and Annual Zip Code are no longer available.

Note: Some of the files on this page are available only in Adobe Acrobat - Portable Document Format (PDF). To view PDF files, you must have the Adobe Acrobat Reader (minimum version 5, version 6 suggested). You can check here to see if you have the Acrobat Reader installed on your computer. If you do not already have the Acrobat Reader installed, please go to Adobe's Acrobat download page now.


Last Modified on Tuesday, September 28, 2004