CMS Medicare Enrollment Database (EDB)

Requesting this data requires a Data Use Agreement. Use of the data must fall under the following research purposes: analyzing the quality, coverage, and consistency of data; and/or exploring the characteristics of program enrollees and enrollee participation in other federal and state government programs.  For more information, contact a local RDC administrator.

The Medicare Enrollment Database (EDB) is the Centers for Medicare & Medicaid Services' database of record for Medicare Beneficiary enrollment information. It is the authoritative source for Medicare beneficiary information and entitlement. The EDB has information on all Medicare beneficiaries, including Social Security Retirement and Disability insurance Beneficiaries, End Stage Renal Disease (ESRD) beneficiaries, and Railroad Retirement Board (RRB) beneficiaries. Each record on the file represents one beneficiary. The Census Bureau receives a subset of all variables in the EDB, including eligibility dates and statuses, residence change dates, and basic demographic information. Census has obtained an annual snapshot of the EDB every year since 1999.

The project review timeframes above do not apply to applications that request access to confidential data assets commingled with data that are either not owned, or are only co-owned, by the statistical agency(s) or unit(s) and require approval from third parties not subject to this policy (e.g., state and local government agencies).