View the Latest: Enrollment
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Medicare Advantage in 2025: Enrollment Update and Key Trends
Issue BriefIn 2025, more than half (54%) of eligible Medicare beneficiaries are enrolled in Medicare Advantage plans. This brief provides current information about Medicare Advantage enrollment, by plan type and firm, and shows how enrollment varies by state and county.
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Fraud in Marketplace Enrollment and Eligibility: Five Things to Know
Issue BriefThis brief evaluates what is currently known about fraud and abuse in the Affordable Care Act (ACA) Marketplace, including how the final Marketplace Integrity and Affordability Rule and the recently enacted budget reconciliation law change existing Marketplace enrollment and eligibility standards.
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The Mystery of How Many People Are on Medicaid
From Drew AltmanIn a new column, Dr. Drew Altman, KFF's President and CEO, examines the different counts of the number of people on Medicaid that are currently in use, which range from 69 to 83 million, and why it might matter. He also discusses other ways to assess the reach of the program: “possibly it’s useful to explain why there are different numbers out there about what seemingly is an all-time simple question: how many people are on Medicaid,” Altman says.
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Senate Finance Language Would Further Cut Federal Spending for Medicaid Expansion States
Policy WatchPrior KFF analysis allocated CBO’s federal Medicaid spending reductions and enrollment losses across the states, and this policy watch builds on that analysis to examine the potential impacts in expansion states compared with non-expansion states.
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Medicaid Changes in House and Senate Reconciliation Bills Would Increase Costs for 1.3 Million Low-Income Medicare Beneficiaries
Issue BriefOn May 22, the House passed a reconciliation bill, the One Big Beautiful Bill Act, which would partially pay to extend expiring tax cuts by cutting Medicaid. The Congressional Budget Office (CBO) estimates that the bill would reduce federal Medicaid spending by $793 billion over ten years and 10.3 million fewer people would be enrolled in Medicaid in 2034, including 1.3 million people with Medicare, otherwise known as “dual-eligible individuals”.
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How the Reconciliation Bill Limits States’ Authority Over ACA Insurance Markets
Quick TakeTaken together, the reconciliation bill's provisions impose additional administrative burdens on state-based marketplaces and could limit state flexibility in choosing marketplace policies and procedures.
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Allocating CBO’s Estimates of Federal Medicaid Spending Reductions and Enrollment Loss Across the States: House Reconciliation Bill
Issue BriefThe Congressional Budget Office’s (CBO) latest estimate shows that the One Big Beautiful Bill would reduce federal Medicaid spending by $793 and that the Medicaid provisions would increase the number of uninsured people by 7.8 million. Previous CBO estimates show that 10.3 million fewer people would be enrolled in Medicaid in 2034. Building on prior KFF analysis, this analysis allocates these estimated federal spending reductions and enrollment losses across the states.