Medicare Program Integrity and Efforts to Root Out Improper Payments, Fraud, Waste and Abuse
This brief explains fraud, waste, abuse, and improper payments in Medicare and describes actions to ensure Medicare program integrity.
View the Latest: Medicare Advantage
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Total Medicare Private Health Plan Enrollment, Current and Projected
FeatureTotal Medicare Private Health Plan Enrollment, 1992-2026 Download Source Congressional Budget Office's March 2016 Medicare Baseline, CMS Medicare Advantage enrollment files for 2008-2014, and MPR's "Tracking Medicare Health and Prescription Drug Plans Monthly Report" for 1992-2007.
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Medicare Advantage: Special Needs Plan (SNP) Enrollment, by SNP Type
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Medicare Beneficiaries Have 32 Medicare Advantage Prescription Drug Plans Available, on Average, for 2026
Policy WatchMedicare beneficiaries will have 32 Medicare Advantage plans with prescription drug coverage available to choose from, on average, in 2026.
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Medicare Advantage Enrollees Have Access to About Half of the Physicians Available to Traditional Medicare Beneficiaries
Issue BriefMedicare Advantage enrollees were in a plan that included just under half (48%) of all physicians available to traditional Medicare beneficiaries in their area in 2022, on average. The limitations of provider networks illustrate one of the key tradeoffs for beneficiaries in choosing Medicare Advantage for their coverage.
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A Closer Look at the Growing Role of Special Needs Plans in Medicare Advantage
Issue BriefTo better understand the growing role of Special Needs Plans (SNPs) in Medicare Advantage, this brief examines SNP enrollment trends using recent Medicare Advantage enrollment data published by the Centers for Medicare and Medicaid Services (CMS).
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Key Facts About Medicare Beneficiaries in Rural Areas
Issue BriefThis brief highlights key facts about Medicare beneficiaries living in rural areas, including their demographic and health characteristics, access to care, and satisfaction with care.
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Chart Reviews Increase Payments to Medicare Advantage Insurers for 1 in 6 Enrollees
Issue BriefUsing Medicare Advantage encounter data, this analysis finds that 62% of Medicare Advantage enrollees have at least one chart review record and that diagnoses added from chart reviews increase payments from CMS to insurers for 17% of enrollees. The use of chart reviews varies across the largest Medicare Advantage insurers.
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Medicare Part D Premiums Are Decreasing for Many Stand-Alone Drug Plans in a Number of States in 2026
Issue BriefThis brief looks at premium changes for Medicare Part D stand-alone prescription drug plans between 2025 and 2026. For plans that were offered nationwide in 2025 and will continue to be offered in 2026, Part D enrollees in many states will see lower monthly premiums in 2026.
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Stand-Alone Drug Plans Cover a Larger Share of Medicare Part D Enrollees Living in the Most Rural Areas Than Medicare Advantage Plans
Issue BriefTo understand the role of Medicare Part D stand-alone prescription drug plans in serving rural Medicare beneficiaries, this data note analyzes 2025 Part D enrollment in PDPs and Medicare Advantage drug plans by geographic area nationally and at the state level.