Medicare Enrollment by Dual Status, 2007 - 2016

Description: The proportion of beneficiaries classified as dually enrolled in Medicare and Medicaid has increased slightly over time, from 15.7% in 2007 to 16.5% in 2016. The proportion eligible for full dual benefits has changed very little over time (12.7% in 2007 to 12.1% in 2016), however the proportion eligible for partial dual benefits has increased from 3.0% in 2007 to 4.4% in 2016.

Technical Notes: Counts include all Medicare beneficiaries who were enrolled in Medicare on or after January 1 of the year. Classification used the state-reported dual status code (variable called DUAL_STUS_CD_MM) to identify beneficiaries dually enrolled in Medicare and Medicaid. Dual coverage was defined as DUAL_STUS_CD_MM = 01, 02, 03, 04, 05, 06 or 08 for 11 or 12 months of the year, or until time of death. A beneficiary was considered a full benefit dual if they had DUAL_STUS_CD_MM = 02, 04 or 08 for a minimum of one month during the year. All other duals were considered partial.

Chart Date: October 11, 2018

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