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Medicare Advantage in 2025: Enrollment Update and Key Trends

In 2025, more than half (54%) of eligible Medicare beneficiaries - 34.1 million out of about 62.8 million with both Medicare Parts A and B - are enrolled in Medicare Advantage plans. The Congressional Budget Office projects that the share will rise to 64% by 2034.

One in five (21%) Medicare Advantage enrollees is in a special needs plan (SNP), reflecting a steady increase in recent years. Overall, Medicare Advantage enrollment is highly concentrated among plans owned by a few firms.

Also: Medicare Advantage in 2025: Premiums, Out-of-Pocket Limits, Supplemental Benefits, and Prior Authorization

Most Medicare Advantage Markets are Dominated by One or Two Insurers

10 Reasons Why Medicare Advantage Enrollment is Growing

Medicare Advantage Quality Bonus Payments Will Total at Least $12.7 Billion in 2025

Medicare Advantage Insurers Made Nearly 50 Million Prior Authorization Determinations in 2023

New & Noteworthy
Medicare PArt D

The Uncertain Future of Medicare's Stand-Alone PDP Market and Why It Matters

This brief discusses the uncertain future of Medicare’s Part D stand-alone prescription drug plan (PDP) market, in light of declining PDP availability, rising premiums, and the unknown fate of a temporary demonstration program designed to stabilize the market more broadly. The uncertain future of the market is especially relevant for rural areas, where nearly 6 in 10 beneficiaries are enrolled in traditional Medicare and PDPs, and where there are fewer Medicare Advantage options.

A Current Snapshot of the Medicare Part D Prescription Drug Benefit

Stand-Alone Drug Plans Cover a Larger Share of Part D Enrollees Living in the Most Rural Areas Than Medicare Advantage Plans

Key Facts About Medicare Part D Enrollment, Premiums, and Cost Sharing in 2025

Changes to Medicare Part D in 2024 and 2025 Under the Inflation Reduction Act and How Enrollees Will Benefit

Prescription Drugs

The Effect of Delaying the Selection of Small Molecule Drugs for Medicare Drug Price Negotiation

Part of a recent executive order from President Trump directs the Secretary of HHS to work with Congress to implement a change in the Medicare Drug Price Negotiation Program to delay negotiation of so-called “small molecule” drugs beyond 7 years after FDA approval under current law. If that timeframe had already been in place, more than half of the Part D drugs that were selected for price negotiation in the first or second rounds – 13 out of 25 – would not have been eligible at the time drugs were selected.

FAQs About the IRA's Medicare Drug Price Negotiation Program

Allowing Medicare to Negotiate Drug Prices Is Broadly Popular

The Facts About the $35 Insulin Copay Cap in Medicare

Enrollees in Most Rural Areas Rely More on Stand-alone Part D Plans

Data Visualization

The Facts About Medicare Spending

This interactive provides the facts on Medicare spending. Medicare, which serves 67 million people and accounts for 12 percent of the federal budget and 21 percent of national health spending, is often the focus of discussions about health expenditures, health care affordability and the sustainability of federal health programs.

Explore data on enrollment growth, Medicare spending trends overall and per person, growth in Medicare spending relative to private insurance, spending on benefits and Medicare Advantage, Part A trust fund solvency challenges, and growth in out-of-pocket spending by beneficiaries.

Related: FAQs on Medicare Financing and Trust Fund Solvency

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  • Seniors and the 2012 Presidential Election

    Feature

    This data note draws primarily on two national surveys, the September Kaiser Health Tracking Poll and the Kaiser 2012 National Survey of Seniors, to examine how health issues are playing as a 2012 election issue for seniors, how this politically important group feels about a variety of policy proposals related to Medicare, including the premium…

  • Medicare Advantage 2012 Data Spotlights

    Report

    The Kaiser Family Foundation has issued a series of data spotlights and examining the Medicare Advantage plan options available in 2012 and trends affecting the Medicare Advantage marketplace. These analyses were prepared by researchers at Mathematica Policy Research Inc. and the Kaiser Family Foundation.

  • Medicare Part D Spending Trends: Understanding Key Drivers and the Role of Competition

    Issue Brief

    This brief commissioned by the Foundation examines factors that contributed to Medicare's lower-than-expected spending on prescription drugs under the Medicare Part D drug benefit that started in 2006. Since its launch, Medicare has spent about 30 percent less on Part D benefits than the Congressional Budget Office originally projected.

  • Medicare Advantage 2011 Data Spotlights

    Report

    Now Available: 2012 Medicare Advantage Spotlight: Plan Availability and Premiums The Kaiser Family Foundation has issued a series of data spotlights and issue briefs examining the Medicare Advantage plan options available in 2011 and trends affecting the Medicare Advantage marketplace.

  • Medicare Part D 2011 Data Spotlight: The Coverage Gap

    Report

    This data spotlight examines the availability of gap coverage in the private Medicare Part D drug plans offered to beneficiaries in 2011, the first year of the phase-out of the gap, as required under the 2010 health reform law.

  • Managing Costs and Improving Care: Team-based Care of the Chronically Ill

    Event Date:
    Event

    Treating those with multiple chronic conditions, including the elderly and disabled populations, accounts for 30 percent of total U.S. health care spending. Half of this amount is spent by Medicare and Medicaid on behalf of beneficiaries eligible for both programs.

  • Kaiser Health Tracking Poll — June 2011

    Feature

    The June Kaiser Health Tracking Poll examines the opinions of seniors and the public about Medicare and the federal budget deficit, a topic of heightened interest these days as policymakers in Washington focus on ways to bring down Medicare spending as part of efforts to reduce the deficit.