Finding Medicare Enrollment Statistics

Summary

There is no single source for Medicare enrollment statistics. Various sources described in this report present different breakdowns of enrollment data, including coverage type (Parts A, B, C, and D), beneficiary type (aged, disabled), and geographic area. This report provides guidance in determining the most current sources for different categories of enrollment data.

The report presents basic categories and definitions for terms related to Medicare enrollment data, a quick reference table that summarizes key data available in selected resources, and a more detailed overview of core resources.