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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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  • Views of the New Medicare Drug Law – Chartpack on People with Disabilities

    Report

    This comprehensive survey of people on Medicare, conducted in June and July 2004, assesses their attitudes toward the new Medicare drug law. This chartpack, issued in September 2004, presents additional analysis on the survey data, focusing on the views of people under age 65 with physical and/or mental disabilities. Supplemental Chartpack (.pdf)

  • Health Care Agenda for the New Congress – Chartpack

    Poll Finding

    This chartpack provides key findings from the survey of the public's attitudes regarding the health care agenda for Bush's second term and the new Congress in 2005. It assesses the relative priority placed on health-care concerns by the American public and also provides insight into public opinion on key issues likely to face the new Congress, such as implementing the Medicare drug law, controlling health care costs, reducing the nation’s uninsured population and reforming the…

  • The Medicare Drug Benefit: Beneficiary Perspectives Just Before Implementation

    Poll Finding

    This comprehensive survey of seniors about the Medicare drug benefit finds that many seniors remain uncertain about how the new benefit will affect them and unsure about whether they will enroll. Seniors who say they understand the benefit well are more likely to report favorable views than those who do not. The survey examines in depth what seniors know and understand about the new benefit and what they think about its potential helpfulness. It was…

  • The Medicare Drug Benefit: Beneficiary Perspectives Just Before Implementation- Chartpack

    Poll Finding

    This chartpack highlights key results and trends from a comprehensive survey of seniors on their understanding of and views toward the Medicare drug benefit. The survey of 802 seniors was conducted in late October 2005, prior to the start of the benefit's open enrollment period, which runs from Nov. 15, 2005 to May 15, 2006. This survey is part of an ongoing effort to track seniors’ views on the Medicare prescription drug benefit, which has…

  • Tracking Prescription Drug Coverage Under Medicare:  Five Ways to Look at the New Enrollment Numbers

    Issue Brief

    Tracking Prescription Drug Coverage Under Medicare: Five Ways to Look at the New Enrollment Numbers This new analysis, which assesses Medicare drug benefit enrollment statistics released Feb. 22 by the U.S. Department of Health and Human Services, examines five different approaches to understanding the Medicare drug coverage numbers: What share of the total Medicare population has creditable prescription drug coverage? What share of the total Medicare population is enrolled in a Medicare drug plan? How…

  • Perspectives on Medicare Part D and Dual Eligibles: Key Informants’ Views From Three States

    Report

    In 2006, low-income individuals receiving health coverage through both the Medicaid and Medicare programs, “dual eligibles,” experienced a change in their prescription drug benefit when their Medicaid prescription coverage was replaced by the Medicare prescription drug program known as Medicare Part D. This study provides information on the ongoing successes and challenges that dual eligibles faced in the first eight months of Part D and how different state approaches may affect dual eligibles’ ability to…

  • Medicare Part D 2008 Data Spotlight: Premiums

    Issue Brief

    This Medicare Part D data spotlight analyzes the premiums charged by the 1,824 stand-alone Medicare Part D plans that will be offered in markets across the country in 2008. The analysis finds premiums charged for Part D plans range widely, from $9.80 per month to $107.50 per month. The average monthly premium would increase from $27.39 in 2007 to $31.99 if enrollees remain in their current plans next year – a 17 percent increase. Nearly…

  • Medicare Part D 2008 Data Spotlight: The Coverage Gap

    Issue Brief

    This Medicare Part D data spotlight examines the coverage gap, or “doughnut hole,” in Medicare drug plans available in 2008. Part D enrollees (other than those receiving low-income subsidies) will reach the coverage gap after they incur $2,510 in total drug costs in 2008. At that point, enrollees are required to pay 100 percent of drug costs until they qualify for catastrophic coverage. The analysis finds that in 2008, more than a quarter of stand-alone…