What's New

The CMS Data Navigator is an easy-to-use, menu-driven search tool that makes the data and information resources of the of the Centers for Medicare and Medicaid Services (CMS) more easily available. Use the Data Navigator to find data and information products for specific CMS programs, such as Medicare and Medicaid, or on specific health care topics or settings-of-care.

The Division of Health Policy and Management, School of Public Health, University of Minnesota seeks a Research Fellow (Technical Advisor) for the Research Data Assistance Center (ResDAC) Assistance Desk. The ResDAC Assistance Desk is the initial point of contact with external researchers nationwide who are seeking information about accessing and using the Centers for Medicare & Medicaid Services (CMS) administrative data.
Don't forget to register for Introduction to the Use of Medicare Data for Research tomorrow, August 29, 2012, at 10:00am CST. This workshop will introduce the use of Medicare administrative data for research. The course will cover the origin, flow, quality and research applications of Medicare data.

ResDAC is excited to announce that our new website has launched! Take a minute to browse through all the great features and content our new site has to offer. New to CMS data? Check out our guide to getting started. Looking for some great resources? Visit ResConnect. We have something for all types of users.

A Plan Crosswalk has been released as the fifth component of the Plan Characteristics suite of data files for years 2007-2010. The Plan Crosswalk data files were created to allow researchers to examine consistency in plan offerings and enrollment over time. All plans which appear in the Plan Characteristics files for the year appear in this file. In addition, these plans are mapped to the plan and contract IDs from the prior year, to indicate whether the plan is new, renewed, split, consolidated or terminated.

This workshop will introduce the use of Medicare administrative data for research. The course will cover the origin, flow, quality and research applications of Medicare data. The workshop design is highly interactive and is designed for individuals who have a research background and/or experiences in health services.

Registration will open August 29, 2012, 10:00am CST. Further workshop details available here.

CMS has been emailing researchers to notify them of DUA expiration dates. All questions and requests to extend or close the DUA should

A single state agency that is currently engaged in or intends to engage in research can request Medicare data from CMS for research purposes. This request can encompass a broad range of analytic activities that support multiple purposes and programs, avoiding the need to submit multiple individual research requests.

ResDAC has updated our help desk software. Emails received from ResDAC will look different from emails previously received from us. Most noticeably, you will now see an eleven character ticket number in your email subject. This ticket number will help ResDAC staff to keep track of email correspondence by ticket number. Please let us know if you have any difficulties with the emails received from ResDAC or if you believe you are not receiving emails.

National Death Index (NDI) Cause of Death information is now available from 1999-2008 for Medicare beneficiaries and 1999-2007 for Medicaid recipients.  This is available through the new Master Beneficiary Summary file, NDI segment.

ResDAC is currently updating our help desk system. During this time, the online Request Response and Transmission System (RRTS) will be unavailable for researchers to submit new requests or view past requests. Researchers can still submit requests by email (resdac@umn.edu) or by phone (1-888-973-7322).

MCBS staff has been made aware of, and since confirmed, a data anomaly present in SAS claims datasets for the several years of MCBS data. This issue impacts SAS claims data only, and is not present in the flat file (.dat) claims also released as part of the annual MCBS research file. Please see the CMS memo (with link to memo) for more information.

The Master Beneficiary Summary File includes several segments; (1) the base file (formerly known as the Beneficiary summary file), which includes enrollment and eligibility and vital statistics information for Medicare A/B/C/D. (2) the chronic conditions segment (formerly contained within the Beneficiary Annual Summary file includes revised algorithms for the previously defined 21 chronic conditions and 7 new chronic conditions. (3) cost and utilization segment (formerly contained within the Beneficiary Annual Summary file includes summary cost and utilization by service category.


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