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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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  • A Gender Gap in Economic Security for Seniors

    News Release

    Following up on an earlier column for The Wall Street Journal's Think Tank on seniors and poverty, Drew Altman looks at why older women will be more at risk of economic insecurity than men in the future. All previous columns by Drew Altman are available.

  • To Switch or Be Switched: Examining Changes in Drug Plan Enrollment among Medicare Part D Low-Income Subsidy Enrollees

    Report

    During the Medicare Part D annual enrollment period, people on Medicare can review and compare stand-alone prescription drug plans (PDPs) and Medicare Advantage plans and switch plans if they choose. Low-income beneficiaries who receive premium and cost-sharing assistance through the Part D Low-Income Subsidy (LIS) program have a subset of premium-free PDPs (benchmark plans) available to them, but can also choose to enroll in a non-benchmark plan and pay a premium. This analysis examines plan…

  • Drilling Down on Dental Coverage and Costs for Medicare Beneficiaries

    Issue Brief

    Medicare does not cover routine dental care and the majority of Medicare beneficiaries do not have dental coverage. Some beneficiaries have dental coverage through other sources, including Medicare Advantage, Medicaid, and private plans, but almost half of all beneficiaries have not been to the dentist in the past year and many older adults face high out-of-pocket costs for needed dental care. The brief reviews the state of oral health for people on Medicare, describing the…

  • People on Medicare Will Be Able to Choose Among 24 Medicare Advantage Plans and 27 Medicare Part D Drug Plans, on Average, During the Open Enrollment Period for 2019, New Analyses Find

    News Release

    With Medicare Advantage playing an increasingly larger role in Medicare, the average person on Medicare will be able to choose among 24 plans during the annual Medicare open enrollment period that began Oct. 15, finds a new analysis from KFF (the Kaiser Family Foundation). The new analysis, Medicare Advantage Plans in 2019: First Look, finds that: Nationally, 2,734 Medicare Advantage plans for general enrollment will be offered in 2019 -- more than in any year…

  • Health Care and the Candidates in the 2018 Midterm Elections: Key Issues and Races

    Issue Brief

    Introduction With the 2018 midterm election season in full swing, health care has emerged as one of the top issues for voters. The issue is playing a prominent role in many House, Senate, and gubernatorial races, and health-related measures have made it onto the ballot in several states. Democratic candidates, in particular, have made health care a central part of their campaigns and a focus of their political ads, highlighting popular provisions in the Affordable…

  • Closing the Medicare Part D Coverage Gap: Trends, Recent Changes, and What’s Ahead

    Issue Brief

    This data note examines the latest data and trends in the Medicare Part D coverage gap, where enrollees must pay a greater share of their prescription drug costs. The note includes data about how many Part D enrollees reached the coverage gap, their average out-of-pocket spending, the value of manufacturer discounts, and recent and proposed changes affecting out-of-pocket costs for Part D enrollees who reach the gap.

  • Faces of Dually Eligible Beneficiaries: Profiles of People with Medicare and Medicaid Coverage

    Issue Brief

    This brief examines the role of Medicare and Medicaid in the lives of dually eligible beneficiaries – low-income seniors and younger adults with disabilities who are eligible for both programs – through personal profiles. It includes a glossary of eligibility and service delivery system terms and state-level enrollment and expenditure data for dual eligibles.

  • Black Medicare Beneficiaries Are More Likely Than White Beneficiaries to Have Cost-Related Problems with Their Health Care, Across both Traditional Medicare and in Medicare Advantage Plans

    News Release

    Among people with Medicare, Black beneficiaries are more likely to have cost-related problems with their health care than White beneficiaries, finds a new KFF analysis, with the racial disparity persisting among beneficiaries in both traditional Medicare and Medicare Advantage plans. While 17 percent of all Medicare beneficiaries, or about 1 in 6, reported health care cost-related problems in 2018, the rate among Black beneficiaries was double that among White beneficiaries (28% vs. 14%), according to…

  • 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.