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How Medicare Advantage Rebates Disadvantage Medicare’s Stand-Alone Drug Plan Market

Rebates that reduce Part D premiums for Medicare Advantage plans with drug coverage make it harder for stand-alone prescription drug plans (PDPs) to compete. That may contribute to instability in the PDP market relied on by people in traditional Medicare. The number of Part D stand-alone Rx drug plan options for the avg Medicare beneficiary has fallen by half in recent years, while Medicare Advantage drug plan options have risen.

Also: Medicare Part D Enrollment, Premiums, and Cost Sharing in 2026

Analyzing Changes in Medicare Part D Enrollment for 2026

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

NEW AND NOTEWORTHY

What to Know About Medicare Coverage of Telehealth

Congress has repeatedly extended pandemic-era flexibilities around Medicare coverage of telehealth, but most such flexibilities remain temporary. This brief answers key questions about the current scope of Medicare telehealth coverage, including both temporary and permanent changes adopted through legislation and regulation, and future policy considerations.

Examining the Potential Impact of Medicare’s New WISeR Model

A federal initiative to establish new prior authorization requirements in traditional Medicare, called the Wasteful and Inappropriate Service Reduction (WISeR) model, is likely to have only modest impact in its first year.

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 in 2026: Enrollment Update and Key Trends

More than half (55%) of eligible Medicare beneficiaries are enrolled in Medicare Advantage in 2026, continuing a decades-long shift toward private plans. Special Needs Plans have driven recent growth, with nearly 1 in 4 enrollees now in such plans.
To better understand trends in the growth of the Medicare Advantage program, this brief provides current information about enrollment, including by plan type and firm.

See Also: Medicare Advantage in 2026: Premiums, Out-of-Pocket Limits, Supplemental Benefits, and Prior Authorization

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

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

Medicare Advantage Out-of-Pocket Limits: Variation & Trends

Prescription Drugs

What to Know About the BALANCE Model for GLP-1s in Medicare and Medicaid and the Medicare GLP-1 Bridge

CMS's temporary program to cover GLP-1 drugs for obesity in Medicare, called the BALANCE model, will not launch as scheduled on January 1, 2027. Instead, CMS is extending the Medicare GLP-1 Bridge, a separate short-term program that was to run from July to December 2026. It will now run through the end of 2027.

Key Facts About Medicare Drug Price Negotiation

Recent Trends in GLP-1 Use and Spending in Medicare

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

The IRA Has Improved Coverage of Drugs Selected for Medicare Price Negotiation

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. u003cbru003eu003cbru003eExplore 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.u003cbru003eu003cbru003eu003ca href=u0022https://www.kff.org/medicare/issue-brief/faqs-on-medicare-financing-and-trust-fund-solvency/u0022 data-type=u0022linku0022 data-id=u0022https://www.kff.org/medicare/issue-brief/faqs-on-medicare-financing-and-trust-fund-solvency/u0022u003eRelated:u003ca href=u0022https://www.kff.org/medicare/issue-brief/faqs-on-medicare-financing-and-trust-fund-solvency/u0022u003e FAQs on Medicare Financing and Trust Fund Solvencyu003c/au003eu003c/au003e

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  • Data Note: Prescription Drugs and Older Adults

    Issue Brief

    This data note explores the attitudes and experiences of older adults, ages 65 and up, when it comes to prescription drugs and related policy proposals being discussed. Experiences across different demographic groups are explored, such as household income and health status.

  • How Much Does Medicare Spend on Insulin?

    Issue Brief

    The price of insulin, used by people with both Type 1 and Type 2 diabetes to control blood glucose levels, has come under increasing scrutiny as policymakers grapple with rising drug costs. This data note finds spending on insulin by Medicare and beneficiaries enrolled in private Part D drug plans has increased sharply between 2007 and 2017.

  • Beneficiaries Who Switch to Medicare Advantage Have Lower Medicare Spending and Use Fewer Services – In the Prior Year – Than Those Who Stay in Traditional Medicare

    News Release

    Medicare Advantage plans gain beneficiaries from traditional Medicare who have lower average spending and use fewer health services than similar beneficiaries who choose to remain in traditional Medicare, according to a new KFF analysis. The analysis finds that people who switched from traditional Medicare to Medicare Advantage in 2016 had health spending in 2015 that was $1,253 less, on average, than the average spending for beneficiaries who remained in traditional Medicare (after adjusting for health…

  • New Analysis Compares Prescription Drug Spending and Use Across Large Employer Plans, Medicare, and Medicaid

    News Release

    As policymakers debate how to address the high cost of prescription drugs, a new KFF analysis compares data on prescription drug spending and use across large employer plans, Medicare Part D and Medicaid, and provides context for policy discussions about different approaches to curb rising drug costs that would affect people covered by each of the three major payers. The data show that private insurers, Medicare and Medicaid account for 82 percent of retail prescription…

  • What Percent of New Medicare Beneficiaries Are Enrolling in Medicare Advantage?

    Issue Brief

    The analysis examines enrollment in Medicare Advantage plans during beneficiaries’ first year on Medicare and finds that less than one-third or 29% enrolled in these private health plans, including HMOs or PPOs. The majority of people new to Medicare are choosing traditional Medicare in the year they first go on Medicare. The study looks at how these findings vary across age, Medicaid status, states, and counties.

  • 10 Things to Know About Medicare Part D Coverage and Costs in 2019

    Issue Brief

    The Medicare Part D program provides an outpatient prescription drug benefit to older adults and people with long-term disabilities in Medicare who enroll in private plans. This analysis provides the latest data about Medicare Part D coverage and costs in 2019 and trends over time, including enrollment, premiums, cost sharing, and participation in the low-income subsidy program.

  • Medicare’s Income-Related Premiums Under Current Law and Changes for 2019

    Issue Brief

    Most people with Medicare pay the standard monthly premium for Part B and Part D coverage, which is set to cover 25 percent of per capita program costs, but a relatively small share of beneficiaries with higher incomes are required to pay higher premiums. This issue brief describes the legislative history of Medicare's income-related premiums and changes to these premiums that will take effect in 2019, based on a provision in the Bipartisan Budget Act…

  • Updated Brief and Interactive Map Examine Poverty Among Seniors in the U.S.

    News Release

    A new Kaiser Family Foundation brief and interactive map provide the latest national and state-level estimates from the U.S. Census Bureau of the share and number of people ages 65 and older who are living in poverty. The resources examine poverty among seniors under the official poverty threshold ($11,756 in income for an individual age 65 or older in 2017), and under an alternative measure of poverty known as the Supplemental Poverty Measure. That measure,…