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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

Medicare Advantage Enrollees Account for 25% of Inpatient Hospital Days

Most Medicare Advantage Markets are Dominated by One or Two Insurers

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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  • Medicare Part D: A First Look at Medicare Prescription Drug Plans in 2022

    Issue Brief

    This issue brief provides an overview of the Medicare Part D prescription drug benefit market for 2022, with a primary focus on stand-alone drug plans. It includes national and state-level data on plan availability, premiums, benefit design, cost sharing, information about premium-free plans for low-income beneficiaries, and information about the national Part D drug plans available in 2022.

  • Medicare Advantage 2022 Spotlight: First Look

    Issue Brief

    For 2022, the average Medicare beneficiary has access to 39 Medicare Advantage plans, the largest number of options available in the last decade, and can choose from plans offered by nine firms. Among the majority of Medicare Advantage plans that cover prescription drugs, 59 percent will charge no premium in addition to the monthly Medicare Part B premium. As in previous years, the vast majority of Medicare Advantage plans will offer supplemental fitness, dental, vision, and hearing benefits. In addition, virtually all will also offer telehealth benefits in 2022.

  • Most Medicare Beneficiaries Don’t Shop Around for Coverage

    Feature

    About 7 in 10 beneficiaries say they did not compare plans during a recent open enrollment period, and some groups were even less likely to do so. Those groups include some who could be most affected by plan changes from year to year.

  • KFF Health Tracking Poll – October 2021: Home And Community Based Services And Seniors’ Health Care Needs

    Feature

    The October KFF Health Tracking Poll explores experiences with unpaid caregiving, and favorability of expansion of home and community based services (HCBS). It also examines experiences with difficulty affording and putting of health care services among seniors, favorability of the ACA and experience with determining eligibility for lower cost insurance as part of the COVID relief package.

  • Large Majorities Across Parties Favor Allowing the Federal Government to Negotiate Drug Prices, Even After Hearing Common Arguments About It

    News Release

    Most of the Public Lacks Confidence that President Biden, Congressional Democrats or Republicans Will Do the Right Thing on Drug Prices Allowing the federal government to negotiate with drug companies to lower drug prices for Medicare beneficiaries and people enrolled in private plans – a key cost-saving proposal in the Democrats’ massive reconciliation bill –…

  • The Public Weighs In On Medicare Drug Negotiations

    Feature

    This data note from the latest KFF Health Tracking Poll explores the public's views on Medicare drug price negotiation, including how arguments on both sides impact support and opposition; confidence in leaders to do the right thing on drug pricing; and experiences with prescription drug costs.