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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 2008 Data Spotlight: Benefit Design

    Issue Brief

    This Medicare Part D data spotlight examines the benefit design of Medicare Part D Prescription Drug Plans (PDP) in 2008, focusing on national plans. It shows that in 2008, as in previous years, only about 10 percent of national prescription drug plans offered the defined standard benefit.

  • Implications of the New Medicare Prescription Drug Benefit for State Medicaid Budgets

    Issue Brief

    For a number of years, Governors and other state policymakers have maintained that Medicare - rather than state Medicaid programs - should play the key role in providing prescription drug coverage to Medicare beneficiaries, including those who also qualify for Medicaid because they are impoverished and/or have extensive health care needs (i.e, the "dual eligibles").

  • Consumer Protection Issues Raised by the Medicare Prescription Drug, Improvement, and Modernization Act of 2003

    Report

    This paper identifies and examines consumer protection issues that arise from the Medicare Prescription Drug, Improvement, and Modernization Act of 2003. Key issue areas include: beneficiary information, marketing, enrollment and disenrollment, the drug benefit package and cost-sharing, the appeals process, concerns for low-income beneficiaries, challenges for nursing home issues, and fraud and abuse. Report (.

  • “My Name Is…” A Video

    Event Date:
    Event

    People with disabilities were profiled in “My Name Is…” a video produced by Kaiser Family Foundation Senior Visiting Fellow and former ABC News Correspondent, Jackie Judd, and shown at a December 12 briefing to release the findings from a survey of people with permanent mental and/or physical disabilities and their health-care experiences and challenges in…

  • Toplines: The Public’s Health Care Agenda

    Poll Finding

    These toplines provide the complete survey questions and findings from The Public’s Health Care Agenda for the New Congress and Presidential Campaign, conducted jointly by the Kaiser Family Foundation and the Harvard School of Public Health between November 9 and 19, 2006.

  • New Medicare Drug Benefit’s Impact on States and Low-Income Beneficiaries

    Other Post

    New Medicare Drug Benefit's Impact on States and Low-Income Beneficiaries The recently signed Medicare prescription drug bill transfers responsibility for providing prescription drug coverage to dual-eligible beneficiaries from Medicaid to Medicare and creates a new subsidy program for low-income Medicare beneficiaries.

  • Survey of People with Disabilities

    Poll Finding

    People with disabilities are at risk in the health-care system because of their wide-ranging health-care needs, their relatively heavy use of prescription drugs, health-care and support services, and typically low incomes. A new survey of people with permanent mental and/or physical disabilities explores their health-care experiences and challenges in accessing and paying for care.