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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 Impact of Enrollment in the Medicare Prescription Drug Benefit on Premiums

    Report

    This Kaiser Family Foundation study estimates the potential impact in monthly Medicare drug premiums if enrollment does not reach 29 million in 2006 as the Congressional Budget Office (CBO) assumed, and if those who do enroll have relatively high total prescription drug costs. The study, prepared by Avalere Health LLC and based on a model developed by Actuarial Research Corporation, looks at various participation scenarios for the beneficiaries who are projected by the Congressional Budget…

  • Medicare Prescription Drug Plans In 2010 and Key Changes Over Five Years

    Issue Brief

    This brief summarizes key findings from the full collection of 2010 Part D Data Spotlights examining key trends in the private stand-alone drug plans available to Medicare beneficiaries. The spotlight is one in a series analyzing key aspects of the Medicare Part D drug plans that will be available to beneficiaries in 2010. The analysis was conducted jointed by Jack Hoadley and Laura Summer of Georgetown University, Elizabeth Hargrave of NORC at the University of Chicago,…

  • Additional Findings from the National Surveys of Doctors and Pharmacists

    Poll Finding

    Two Kaiser Family Foundation national surveys of doctors and pharmacists examine additional findings on their views and experiences on a wide range of health care issues. The topics covered in the surveys include views and experiences with medical errors and quality issues, use of health care information technology, prescription drug advertisements, views on Medicaid provisions, doctors' willingness to see Medicaid and Medicare patients, and physicians' views of conscience-clause provisions. The Kaiser Family Foundation National Survey…

  • The Impact of Part D on Dual Eligibles Who Spend-Down to Medicaid

    Issue Brief

    Individuals with incomes exceeding thresholds for regular Medicaid eligibility may qualify under state medically needy programs by spending down excess income on healthcare services. For the vulnerable population of Medicare beneficiaries who spend down to Medicaid, the Part D transition has added additional complexities that may result in disruptions in pharmacy coverage and add financial burdens. This paper explores the inter-relationship of Medicare prescription drug coverage and Medicaid spend-down for the medically needy. It describes…

  • The Role of State Pharmaceutical Assistance Programs in Serving Low-Income Medicare Beneficiaries Following the Implementation of Medicare Part D

    Issue Brief

    The Role of State Pharmaceutical Assistance Programs in Serving Low-Income Medicare Beneficiaries Following the Implementation of Medicare Part D Prior to January 1, 2006, State Pharmaceutical Assistance Programs helped to fill a critical gap in coverage for Medicare beneficiaries without prescription drug coverage, targeting resources to beneficiaries with relatively low incomes. With the inception of the Medicare prescription drug benefit, the role of SPAPs began to change. This policy brief examines the role of state…

  • Voices of Beneficiaries: Attitudes Toward Medicare Part D Open Enrollment for 2008

    Other Post

    This report focuses on the recent experiences of a group of 35 Medicare beneficiaries in the early years of the Medicare prescription drug benefit, including a number who were enrolled in a Medicare Part D drug plan in 2007. It looks at their attitudes about the open enrollment season for 2008, and their interest related to switching to a new Part D plan for 2008. It finds that most enrollees do not intend to reexamine…

  • Medicare Part D 2010 Data Spotlight: The Coverage Gap

    Report

    This data spotlight examines the coverage gap, or "doughnut hole," in Medicare stand-alone drug plans available in 2010. While in the gap in coverage, Part D enrollees (other than those receiving low-income subsidies) are required to pay 100 percent of total drug costs until they reach the catastrophic coverage level. In 2010, nearly all the private stand-alone drug plans have a coverage gap, though a small share do provide some help to beneficiaries in the…

  • The Role of National Firms in Medicare+Choice

    Report

    This report addresses national managed care firms participation in M+C and the factors influencing their decision processes about M+C products. Based on interviews with executives and senior staff of national managed care firms, this report examines how eight national firms strategically position their M+C product, including the process that firms use when making decisions and the key factors they say most influence their decisions related to participation. Report

  • State Demonstrations to Integrate Care and Align Financing for Dual Eligible Beneficiaries: A Review of the 26 Proposals Submitted to CMS

    Report

    The Centers for Medicare and Medicaid Services (CMS) has proposed two models to align Medicare and Medicaid benefits and financing for dual eligible beneficiaries, one capitated model and one managed fee-for-service model. In the spring of 2012, 26 states submitted proposals to CMS seeking to test one or both of these models. CMS is presently reviewing the states' proposals to determine which will be implemented. This background paper examines the contents of the 26 states'…