What's New

CMS is pleased to announce the availability of Medicare Risk Score Research Identifiable Files (RIFs) for Payment Year 2014 (PY14).

National Death Index (NDI) Cause of Death Information is now available from 1999-2016 for Medicare beneficiaries and 1999-2013 for Medicaid recipients. This data is available through the NDI segment of the Master Beneficiary Summary File and Medicaid Enrollee Supplemental File.

CMS is pleased to announce the availability of a new Part D data file, the Part D Plan Election Type Beneficiary Summary File. CMS developed this file to enable researchers to study the effects of Part D auto-assignment and reassignment policies among Low Income Subsidy (LIS) beneficiaries. The Plan Election Type Beneficiary Summary file will be offered for 2006 forward.

Centers for Medicare and Medicaid Services (CMS) announce updates to the Limited Data Set (LDS) Medicare claims and enrollment files.

The Center for Medicare and Medicaid Services (CMS), Centers for Medicare (CM) has created a set of data files containing Quality and Resource Use Report (QRUR) and Value Modifier information for groups and solo practitioners.

There is one Public Use File (PUF) available, the Performance Year Value Modifier file for each of the years 2013, 2014, and 2015.

CMS is pleased to announce that the Research Identifiable File (RIF) claims layout has been updated to Version K.  The layout change applies to file years 1999 to current and will apply to all files shipped after May 22nd, 2017.  The updated data dictionary is available at both the Re

CMS is pleased to announce improvements to the Master Beneficiary Summary File (MBSF) to include timely Medicare Advantage (Part C) enrollment information and Medicare Prescription Drug (Part D) enrollment information.  While the MBSF has always included all Medicare beneficiaries, the updated MBSF “Base (A/B/C/D) Segment” includes enrollment information for beneficiaries enrolled in Part C and Part D, as well as those in traditional Medicare (Parts A and B). 

The ResDAC phone lines will be closing today, 3/27 at 12:00pm CST. We apologize for any inconvenience this may cause. Normal operations will resume on 3/28.

CMS is pleased to announce the availability of a new Part D data file, the Medication Therapy Management (MTM). This file fulfills requests made by researchers for data to enable study of the effects of MTM under Part D. The MTM file will be available for 2013 forward. Currently 2013 and 2014 MTM files are available.

Due to the scheduled University of Minnesota holidays, ResDAC's phone lines will be closed from Wednesday, 11/23 at 3pm through Friday, 11/25. We will be available for normal business hours on Monday, 11/28. Happy Thanksgiving from the ResDAC team!

The Public Use File (PUF) for the CMS Medicare-Medicaid Linked Enrollee Analytic Data Source (MMLEADS) is now available.  This Excel file portrays a wealth of different enrollment, health condition, utilization, and expenditure statistics, nationally and by state, for Medicare-Medicaid dual enrollees, Medicare-only enrollees,

Effective September 1, 2016 all research requests for HOS LDS files must be requested through the Limited Data Set File Process. You will find instructions here: Limited Data Set (LDS) Files.

Effective September 1, 2016 all research requests for MCBS data for the two limited access data releases must be requested through the Limited Data Set File Process. You will find instructions here: Limited Data Set (LDS) Files.

CMS is pleased to announce that all researchers will be allowed to request LDS data on a quarterly basis in addition to the annual files. CMS is making more timely extracts of Medicare claims data available to researchers who access this data via Limited Data Sets (LDS).

Due to a scheduled University of MN floating holiday, the ResDAC phone lines will be closing Friday, 3/18 at 12:30pm CST. We apologize for any inconvenience this may cause. Normal operations will resume on 3/21.

A revised RIF request letter template for ammendment requests has been posted to our website and is availble for immediate use.

The Centers for Medicare & Medicaid Services (CMS) has released 2012 Cost & Use research files from its Medicare Current Beneficiary Survey (MCBS).

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