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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 Advantage Insurers Made Nearly 53 Million Prior Authorization Determinations in 2024

    Issue Brief

    Nearly 53 million prior authorization requests were submitted to Medicare Advantage insurers on behalf of Medicare Advantage enrollees in 2024, of which 4.1 million (7.7%) were denied. Just 11.5% of denied requests were appealed, though 80.7% of appeals overturned the initial denial in Medicare Advantage. Substantially fewer prior authorization requests were made in traditional Medicare, reflecting the small number of services subject to prior authorization requirements.

  • Medicare Advantage 2024 Spotlight: First Look

    Issue Brief

    For 2024, the average Medicare beneficiary has access to 43 Medicare Advantage plans and can choose from plans offered by 8 firms. Among the majority of Medicare Advantage plans that cover prescription drugs, 66 percent will charge no premium in addition to the monthly Medicare Part B premium. As in previous years, the vast majority of Medicare Advantage plans will offer supplemental benefits, including fitness, dental, vision, and hearing benefits.

  • Are covered benefits and cost-sharing requirements under Medicare Advantage plans the same? How can I compare?

    FAQs

    All Medicare Advantage plans cover the same services that are covered by traditional Medicare. However, not all Medicare Advantage plans have the same cost-sharing requirements. The deductibles, premiums, and cost sharing for services vary by plan. And plans may cover benefits not covered by traditional Medicare. For example, most Medicare Advantage plans offer coverage of dental, hearing, and vision services, although the scope of coverage varies. To compare the costs and benefits of different Medicare…

  • I am about to turn 65 and sign up for Medicare but I’m not sure what my options are for coverage. Where can I go for more information?

    FAQs

    To learn more about your coverage options under Medicare, including the Medicare Advantage plans, Part D prescription drug plans, and Medicare supplement policies (Medigap) available in your area, and how to enroll, you can go to the Medicare coverage comparison website, a searchable tool on the Medicare.gov website, or call 1-800-MEDICARE (1-800-633-4227). You can also contact the State Health Insurance Assistance Program (SHIP) in your state or the Social Security Administration. SHIPs offer local, personalized…

  • Is there a lifetime limit on the number of times a person can switch Medicare Advantage and Medicare Part D plans, or can I shop around and switch every year if I want to?

    FAQs

    You may switch Medicare Advantage and Part D plans every year during the annual Medicare Open Enrollment period (October 15 through December 7), and, if you are enrolled in a Medicare Advantage plan, you can also switch during the Medicare Advantage Open Enrollment period (January 1 through March 31). It is generally a good idea to compare your plan options every year, even if you are happy with your current coverage, since plans often make…

  • Report Examines Trends in the Medicare Part D Plan Marketplace

    News Release

    A new comprehensive Kaiser Family Foundation report analyzes key trends that have shaped the Medicare Part D marketplace since the program launched nine years ago, providing a detailed assessment of changes in plan availability, enrollment, premiums and cost sharing in both private stand-alone drug plans, and Medicare Advantage drug plans.

  • Medicaid Eligibility for Individuals with Disabilities

    Issue Brief

    This issue paper updates the July 1999 report and provides a general overview of federal Medicaid eligibility policy for the low-income disabled population. This paper focuses on four broad groups of individuals with disabilities: children under 18; adults under 65 who are not living in institutions; adults under 65 who are living in institutions; and adults under 65 who are also eligible for Medicare. In addition, this paper includes the new eligibility options offered under…

  • Individuals With Disabilities and their Experiences with Medicaid Managed Care

    Report

    Today, one out of every four disabled Medicaid beneficiaries receives health care through managed care. This Background Paper provides insights into how Medicaid managed care is working for individuals with disabilities, based on the findings from seven focus groups held in Florida and New Mexico. The key findings show that adults and children with disabilities feel alone in managing their health care and that important components of managed care - coordination and gatekeeping role that…