Master Beneficiary Summary File (MBSF): Cost and Use Segment

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The Cost and Use file segment of the MBSF includes one record for each beneficiary enrolled in Medicare in the calendar year of the file.

What does this file include? (variable highlights)

  • Summary of utilization and total annual payments for services such as:
    • physician visits, dialysis, DME, IP recorded emergency room visits, Ambulatory Surgical Centers, anesthesia, imaging, Part B drugs from Fee-for-service (FFS) Medicare
  • Number of hospital stays, Medicare covered days and total annual inpatient payments for services covered by FFS Medicare
  • Summary of Part D payments, events and prescription fills

This file is a segment that can be requested in addition to the Master Beneficiary Summary File (MBSF) base file.

Program:
Medicare
Category:
Beneficiary Enrollment and Summary
Privacy Level:
Research Identifiable Files

Availability of this file

Availability:
CY 1999-2022

Date Requests Can Be Accepted for Upcoming Releases:

CY 2023 available 11/2024

See more about all file availability
See what is in this file
View Data Documentation

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