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NavigationMy CCW Login (Authorized Users Only) FAQ Help Chronic Conditions Data Warehouse Your source for national CMS Medicare and Medicaid research data Home Medicare Data Medicare Tables & Reports Medicare Charts Medicare Enrollment Charts Medicare Chronic Condition Charts Medicare Part D Charts Medicare Other Chronic and Disabling Conditions Medicaid Data Medicaid Tables & Reports Medicaid Charts Data Dictionaries Condition Categories Chronic Conditions Other Chronic and Disabling Conditions Analytic Guidance User Documentation Technical Guidance Documentation White Papers Conference Presentations Pricing Estimate Study Size - Medicare Estimate Study Size - Medicaid Data Pricing Chronic Conditions Data Warehouse Home Pause Previous Next CMS has announced two important changes to the data request and access policies for researchers. As part of the implementation of these policy changes, CMS has posted an informal Request for Information (RFI) seeking comments from stakeholders. The RFI will be open for comments until 5/15/2024. Read the full announcement about CMS’ policy changes and to access the RFI. Read More The Chronic Conditions Warehouse (CCW) Virtual Research Data Center (VRDC) is an alternative solution for accessing and analyzing CMS data for research purposes. To learn more about getting data for your research, refer to the About the VRDC and Requesting Access page, view the CCW VRDC FAQs and visit the ResDAC website. Read More View the Chronic Conditions Warehouse informational video to learn how you can access, analyze and aggregate all the data you need…like never before. Read More CMS receives numerous requests for data which are used to develop aggregated statistics, charts and graphs. The CCW’s Medicare Web Tables and Web Charts have been updated and are now available with data for years 2012-2021. Read More As a research database, CCW users are generally expected to pay fees to access and use data. Costs vary depending on beneficiary cohort size, years of data and files ordered. In preparation for submitting a data request, a cost estimation tool allows users to create an estimated cohort size and determine an estimated cost before moving to the next level in the data request process. Read More Welcome to the Chronic Conditions Data Warehouse The CMS Chronic Conditions Data Warehouse (CCW) provides researchers with Medicare and Medicaid beneficiary, claims, and assessment data linked by beneficiary across the continuum of care. In the past, researchers analyzing data files were required to perform extensive analysis related to beneficiary matching, deduplication, and merging of the files in preparation for their study analysis. With the CCW data, this preliminary linkage work is already accomplished and delivered as part of the data files sent to researchers. The Chronic Conditions Data Warehouse (CCW) is a research database designed to make Medicare, Medicaid, Assessments, Part C, and Part D Prescription Drug Event data more readily available to support research designed to improve the quality of care and reduce costs and utilization. Quick Links About the CCW About the VRDC and Requesting Access User Access Request Process (PDF) Frequently Asked Questions (FAQ) Provide Feedback This website was developed under contract with the Centers for Medicare & Medicaid Services (CMS). © 2013-2024 HealthAPT. Home Privacy Policy Vulnerability Disclosure Policy Accessibility Copyrights &...