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Prescription Drugs

Recent Trends in GLP-1 Use and Spending in Medicare

New data from the Centers for Medicare & Medicaid Services shows that use of and spending for GLP-1 drugs under Medicare grew substantially between 2019 and 2024. Medicare covers GLP-1 drugs for diabetes, cardiovascular disease, and sleep apnea, but current law prohibits Medicare from covering drugs for weight loss.

FAQs About the IRA's Medicare Drug Price Negotiation Program

A Current Snapshot of the Medicare Part D Prescription Drug Benefit

What to Know About Pharmacy Benefit Managers (PBMs) and Federal Efforts at Regulation

President Trump Proposes Codifying MFN Drug Pricing Deals But Key Details Are Missing

New & Noteworthy

What to Know About Pharmacy Benefit Managers and Federal Efforts at Regulation

The top three pharmacy benefit managers (PBMs) manage 79% of prescription drug claims on behalf of 270 million people. We look at the role PBMs play in influencing drug costs and access to medicines, as well as efforts to regulate them.

State Profiles for Dual-Eligible Individuals

This data collection draws on Medicare and Medicaid administrative data to present national and state-level information on people who are covered by both Medicare and Medicaid, referred to as dual-eligible individuals (also known as dually-enrolled beneficiaries).

Medicare Advantage

Medicare Advantage Insurers Made Nearly 53 Million Prior Authorization Determinations in 2024

Medicare Advantage insurers made nearly 53 million prior authorization determinations in 2024, up from 49.8 million in 2023. They fully or partially denied 4.1 million, or 7.7%, of the prior authorization requests they received. Just 11.5% of all denials were appealed, but in the vast majority of those cases (80.7%) the initial denial was overturned.

Prior authorization determinations represent requests for approval that providers must submit before providing a service. Lawmakers of both major political parties have pressed insurers on their prior authorization practices, which consumers say unfairly erect barriers to needed care.

How Medicare Pays Medicare Advantage Plans: Issues and Policy Options

Medicare Advantage Enrollees Have Access to About Half of the Physicians Available to Traditional Medicare Beneficiaries

1 in 6 Medicare Advantage Enrollees Had a Diagnosis Added on a Chart Review That Increased Federal Payments to their Insurer

Medicare Advantage 2026 Spotlight: A First Look at Plan Offerings

Medicare Part D

Premiums Are Decreasing for Many Stand-Alone Part D Drug Plans in a Number of States in 2026

This analysis finds that monthly premiums for many Part D stand-alone prescription drug plans (PDPs) in a number of states will be lower in 2026 than they were this year. At the same time, the total number of PDPs, which provide prescription drug coverage to people in traditional Medicare, will fall for the third year in a row, as insurers continue to scale back their offerings and adjust to higher costs under the redesigned Part D benefit, reflecting changes in the Inflation Reduction Act.

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

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

A Current Snapshot of the Medicare Part D Prescription Drug Benefit

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

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 Open Enrollment

Beneficiaries Have 32 Medicare Advantage Prescription Drug Plans Available, on Average, for 2026

The average Medicare beneficiary will be able to choose among 32 Medicare Advantage plans with prescription drug coverage for 2026, two fewer than in 2025. The number of MA-PD options has grown steadily since 2010, peaking in 2024 when the average Medicare beneficiary had 36 options. Open enrollment runs October 15 through December 7.

Also: Medicare Open Enrollment FAQs

Premiums Are Decreasing for Many Stand-Alone Drug Plans in a Number of States in 2026

A Current Snapshot of the Medicare Part D Prescription Drug Benefit

The Role of SHIPs in Helping People with Medicare Navigate Their Coverage

What to Know About the Medicare Open Enrollment Period and Medicare Coverage Options

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  • Nursing Home Reform: Then and Now

    Video

    To mark the 20th anniversary of the passage of landmark federal legislation to improve the quality of nursing home care, the Omnibus Budget Reconciliation Act of 1987 (known as OBRA 87), this video examines the history surrounding the law. The video includes a look at the state of nursing home care before the law, an overview of the legislative process that brought about the law, and recent developments in nursing home quality. The video features historical clips and new interviews of key individuals from government, the nursing home industry, and consumer advocates who were instrumental in the historical developments related to nursing home reform.

  • Medicare and Medicaid at 40

    Video

    The Medicare and Medicaid health coverage programs were signed into law July 30, 1965. The Kaiser Family Foundation has some new resources that examine how Medicare and Medicaid came into existence and how they have evolved over the past 40 years. You will find new documentaries and extended interviews with key policymakers and government officials examining the origins of Medicare and Medicaid, new interactive historical timelines, a chart pack of key information and statistics, a webcast of a retrospective of the two programs with historian Robert Dallek and key government officials responsible for the programs over the past 40 years, and many other background resources on the two programs.

  • Medicare at 40

    Video

    The Kaiser Family Foundation has produced three documentaries to mark the 40th anniversary of Medicare and Medicaid. The documentaries examine the social needs that led policymakers to create these programs, the expectations of what they would achieve and the reality of these programs today. Key policymakers, staff officials and members of Congress involved in the creation and implementation of Medicare and Medicaid are interviewed. Extensive use of historic video helps tell the story of these landmark social programs.

  • Health Reform Implementation Timeline

    Interactive

    The health reform implementation timeline is an interactive tool designed to explain how and when the provisions of the Affordable Care Act will be implemented over the next several years.

  • Comparison of Medicare Premium Support Proposals

    Issue Brief

    This brief provides a side-by-side comparison of recent proposals to transform Medicare into a premium support program and slow the future growth in Medicare spending.

  • Half of Admissions in the Large Group Market Are Paid Above 150% of Medicare Rates, Excluding Maternity Admissions

    Issue Brief

    This analysis looks at in-network payment rates for inpatient hospital stays, other than maternity/newborn admissions, among large employer plans relative to Medicare payment rates. We find that a cap of 150% of Medicare rates would affect 52% of in-network admissions and 36% of in-network spending, while a cap of 300% of Medicare rates would affect 13% of in-network admissions and 13% of in-network spending, with variation across types of admissions.

  • Medicare Part B Drugs: Cost Implications for Beneficiaries in Traditional Medicare and Medicare Advantage

    Issue Brief

    In the face of rising prescription drug costs, a large majority of the public supports federal efforts to lower drug spending. Policymakers are considering several proposals that would lower prescription drug costs. To better understand the potential out-of-pocket cost exposure that Medicare beneficiaries may face for Part B drugs, which are typically administered by physicians and other health care providers, we analyzed cost-sharing liability for these drugs in traditional Medicare and cost-sharing requirements in Medicare Advantage plans.