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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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  • The Kaiser Family Foundation/Harvard School of Public Health Medicare Prescription Drug Survey – Toplines

    Poll Finding

    These toplines are part of a survey by the Kaiser Family Foundation and Harvard School of Public Health that examines public opinion on the Medicare prescription drug debate. The survey, a follow-up to a broader, more comprehensive survey released in June 2003 about the Medicare program and proposed changes, finds that a majority of seniors want Congress to pass Medicare prescription drug legislation this year, but most worry that they will still pay too much…

  • The New Medicare Prescription Drug Law:  Issues for Dual Eligibles with Disabilities and Serious Conditions

    Issue Brief

    The New Medicare Prescription Drug Law: Issues for Dual Eligibles with Disabilities and Serious Conditions The new issue paper discusses the challenges the new Medicare drug program faces in meeting the needs of dual eligible individuals with disabilities, who tend to have extensive, complex and varying needs. The brief examines four key questions about how the new benefit will serve dual eligibles with disabilities and profiles some individuals from this population for whom prescription drugs…

  • Less Than One-Third of New Medicare Beneficiaries Enrolled in Medicare Advantage During Their First Year on Medicare 

    News Release

    Twenty-nine percent of new beneficiaries chose to enroll in Medicare Advantage during their first year in Medicare in 2016, finds a new KFF analysis. That level generally matches the overall share of beneficiaries who opted for Medicare Advantage that year, but does not support the view that the aging Baby Boom generation, having had more experience with HMOs and PPOs during their working years, would select the private plans over traditional Medicare at relatively high…

  • How Many Medicare Part D Enrollees Had High Out-of-Pocket Drug Costs in 2017?

    Issue Brief

    The Medicare Part D prescription drug benefit has helped improve the affordability of medications for people with Medicare. Yet Part D enrollees can face relatively high out-of-pocket costs because the Part D benefit does not have a hard cap on out-of-pocket spending. This analysis presents the latest data on out-of-pocket drug spending among Medicare Part D enrollees without low-income subsidies who have costs above the catastrophic coverage threshold.

  • Sources of Supplemental Coverage Among Medicare Beneficiaries in 2016

    Issue Brief

    Today, 60 million people, including 51 million older adults and 9 million younger adults with disabilities, rely on Medicare for their health insurance coverage, but many Medicare beneficiaries rely on other sources of coverage to supplement their Medicare benefits. This data note explores sources of supplemental coverage among beneficiaries in traditional Medicare, based on data from the 2016 Medicare Current Beneficiary Survey.

  • KFF Health Tracking Poll – January 2019: The Public On Next Steps For The ACA And Proposals To Expand Coverage

    Feature

    This month's KFF Health Tracking Poll finds that about four in ten are aware of the federal judge's ruling that the ACA is no longer valid but once made aware, most disapprove of the ruling. This poll also examines the public's favorability toward expanding the role of public health care programs, and majorities across partisan groups have a favorable opinion of programs such as Medicare buy-in and Medicaid buy-in, with a national Medicare-for-all being less…