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Medicare Part D

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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  • Medicare Cost-Sharing: Implications for Beneficiaries

    Event Date:
    Event

    Tricia Neuman, Vice President and Director of the Medicare Policy Project, testified on behalf of herself and Thomas Rice, Ph.D., of UCLA's School of Public Health, before the House Ways and Means Subcommittee on Health on cost-sharing requirements under Medicare and supplemental Medigap policies. The statement reviews Medicare beneficiaries' current cost-sharing responsibilities, the evidence on the impact of out-of-pocket costs on health-care utilization, and the implications for proposals that would modify Medicare's cost-sharing structure.

  • Trends in Medicare Supplemental Insurance and Prescription Drug Benefits, 1996-2001Data Update

    Report

    Trends in Medicare Supplemental Insurance and Prescription Drug Benefits, 1996-2001 Data Update This data update provides estimates of supplemental insurance and prescription drug coverage rates and trends between 1996 and 2001, which will help to provide important context for assessing future changes in supplemental insurance and drug coverage rates after provisions of the Medicare drug benefit take effect. Report (.pdf)

  • Views of the New Medicare Drug Law – Summary & Chartpack

    Report

    This comprehensive survey of people on Medicare assesses their attitudes toward the new Medicare drug law. The survey provides detailed insight in their perceptions and opinions about the law, the Medicare-approved drug-discount card program and the new Medicare drug benefit set to begin in January 2006. It also assesses views on the law’s implications for the 2004 elections. Summary/Chartpack (.pdf)

  • Prescription Drug Sources Among Medicare Beneficiaries

    Report

    Note: Estimates are rounded to the nearest whole number, therefore do not sum to total. (1) Includes Veterans Administration, Indian Health Service, employer plans without retiree subsidies, employer plans for active workers, and state pharmaceutical assistance programs. (2) Includes employer/union, FEHB, and TRICARE coverage. (3) Approximately 0.5 million dual eligibles are enrolled in Medicare Advantage drug plans and are reported in this category. Source: HHS, January 30, 2007. Data as of January 16, 2007.

  • Polling on Medicare Premium Support Systems Over Time

    Poll Finding

    This data note reviews years of polling dating to 1995 to gauge public opinion on proposals to change Medicare to a premium support system, an idea embraced by GOP presidential nominee Governor Mitt Romney and rejected by President Obama. Under the proposed change, the federal government would provide people on Medicare a fixed amount of money that could be applied toward the cost of health insurance purchased either from private insurers or the traditional Medicare…

  • Medicare Beneficiaries & HMO’s:  A Case Study of the Los Angeles Market

    Other Post

    Medicare Beneficiaries & HMO's: A Case Study of the Los Angeles Market Note: This publication is no longer in circulation. However, a few copies may still exist in the Foundation's internal library that could be xeroxed. Please email order@kff.org if you would like to pursue this option.

  • The Implications of the Medicare Prescription Drug Benefit for Dual Eligibles

    Other Post

    Three new reports focus on one of the biggest challenges in the implementation of the Medicare Modernization Act, the transitioning of drug coverage for individuals dually eligible for Medicaid and Medicare, who now get their drug coverage from Medicaid, to the new Medicare benefit. The New Medicare Prescription Drug Law: Issues for Enrolling Dual Eligibles into Drug Plans Medicare's New Prescription Drug Benefit: The Voices of People Dually Covered by Medicare and Medicaid Implications of…

  • Premiums and Cost Sharing Features in Medicare’s New Prescription Drug Program, 2006

    Issue Brief

    Premiums and Cost-Sharing Features in Medicare's New Prescription Drug Program, 2006 When Congress created the Medicare drug benefit in 2003, it also sought to generate more private plan options for senior and disabled beneficiaries in Medicare, with increased payments to attract sponsors and to support added benefits attractive to enrollees, especially in rural and other areas that previously had few such plans. The effects of these changes and additional payments are particularly visible this year,…

  • Health Affairs Article Examines Enrollment in Medicare Drug Plans As The Benefit Approaches Its Second Year

    Report

    Health Affairs Article Examines Enrollment in Medicare Drug Plans As The Benefit Approaches Its Second Year An article by Kaiser Family Foundation researchers published as a Health Affairs Web Exclusive provides a comprehensive look at the 2006 private Medicare drug plan enrollment as the enrollment period for 2007 begins. The article examines organization- and plan-level market share, as well as enrollment by type of plan, benefit design, and gap coverage. Health Affairs Web Exclusive (free…