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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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  • Do We Know If Medicare Advantage Special Needs Plans Are Special?

    Report

    This report describes the history of special needs plans, how they fit into the larger Medicare Advantage marketplace, and what information could help assess whether these plans are performing differently from other Medicare Advantage plans.

  • Webinar for Journalists: A Year-End Update on the ACA Rollout & Looking Ahead to 2014

    Event Date:
    Event

    Two and an half months into the open enrollment period for the Affordable Care Act, where does the rollout of the law stand with marketplace coverage set to begin on January 1, 2014? Featuring two Kaiser Family Foundation experts--Larry Levitt, Co-Director of the Foundation's Program for the Study of Health Reform and Private Insurance & Senior Vice President, and Jennifer Tolbert, State Health Policy Director--the webinar touched on some of the major questions as people start using ACA coverage and the end of the open enrollment period on March 31. Most of the hour was devoted to a question and answer session with the participating audience.

  • Modifying Medicare’s Benefit Design: What’s the Impact on Beneficiaries and Spending?

    Report

    This report examines an approach to reforming Medicare that has been a focus of Congressional hearings and featured in several broader debt reduction and entitlement reform proposals, and was included in the June 2016 House Republican health plan. The analysis models four different options for modifying Medicare's benefit design, all of which include a single deductible, modified cost-sharing requirements, a new cost-sharing limit, and a prohibition on first-dollar Medigap coverage. The analysis models the expected effects on out-of-pocket spending by beneficiaries in traditional Medicare, and assesses how each option is expected to affect spending by the federal government, state Medicaid programs, employers, and other payers, assuming full implementation in 2018.

  • What’s In and What’s Out? Medicare Advantage Market Entries and Exits for 2016

    Issue Brief

    This Issue Brief examines the availability of Medicare Advantage plans nationwide and by state in 2016, and tracks changes in plan availability since 2012. It documents the number and share of Medicare Advantage enrollees affected by plan withdrawals each year, the characteristics of plans that will be entering or exiting the market in 2016, and the potential implications of these changes for Medicare Advantage enrollees.

  • Medicare Open Enrollment Preview

    Event Date:
    Event

    With Medicare Advantage (Part C) and prescription drug (Part D) open enrollment beginning October 15th, this briefing took a close look at what to expect, including trends in premiums and cost sharing, plan availability and benefit design.