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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

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 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

Prescription Drugs

People with Medicare Will Face Higher Costs for Some Orphan Drugs Due to Changes in the Tax and Budget Law

A provision in the 2025 tax and budget law that will expand the exclusion of orphan drugs from Medicare’s drug price negotiation program could lead to at least $5 billion in additional Medicare spending over time, as well as higher out-of-pocket costs for beneficiaries who use these medications.

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 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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  • Obamacare and You

    Fact Sheet

    Obamacare and You is a series of one-page papers explaining how the Affordable Care Act, also known as “Obamacare,” will affect different groups of people.

  • Medicare’s Role in Health-Care Payment Reform

    From Drew Altman

    In this column for The Wall Street Journal's Think Tank, Drew Altman explores whether Secretary Burwell's announcement this week about Medicare's payment reform initiative is another sign that the public sector is becoming the engine driving payment and delivery reform.

  • Summary of Medicare Provisions in the President’s Budget for Fiscal Year 2016

    Issue Brief

    On February 2, 2015, the Office of Management and Budget released President Obama’s budget for fiscal year (FY) 2016, which includes provisions related to federal spending and revenues, including Medicare savings. The President’s FY2016 budget proposal would reduce net Medicare spending by $423 billion between 2016 and 2025, and is estimated to extend the solvency of the Medicare Hospital Insurance Trust Fund by approximately five years. This brief summarizes the Medicare provisions included in the President’s FY2016 Budget.

  • Tracking Medicare Health and Prescription Drug Plans Report—May 2010

    Report

    This brief presents current monthly data on Medicare Advantage plan participation, enrollment and penetration. It also summarizes recent activities by the Centers for Medicare and Medicaid Services (CMS), participating health plans, and the research community pertaining to the Medicare Advantage program and prescription drug plans that began serving the Medicare population in January 2006.

  • Snapshots from the Kitchen Table: Family Budgets and Health Care

    Video

    This Kaiser Family Foundation documentary, “Snapshots from the Kitchen Table: Family Budgets and Health Care,” profiles several American families who are struggling to make ends meet. It depicts the narrow financial ledge on which millions of low- and middle- income working households stand even in normal economic times, and illustrates the central role that health care costs and coverage play in a household’s economic stability. Some of the families profiled have health insurance, others do not.

  • Visualizing Health Policy: Medicare’s Role and Future Challenges

    Other Post

    November 2012 infographic in the Visualizing Health Policy series takes a look at Medicare—who it covers; the services its beneficiaries use; and the balance policymakers must strike between setting fair payments, keeping care affordable, and sustaining the program for future generations.

  • 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.