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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

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. Explore 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.

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  • Displaced by Hurricane Katrina: Issues and Options for Medicare Beneficiaries

    Issue Brief

    An estimated 200,000 Medicare beneficiaries were displaced by Hurricane Katrina. Medicare played a key role in meeting the health care needs of the elderly and disabled beneficiaries who were displaced by the hurricane. Many of these beneficiaries face new challenges as a direct result of the hurricane. This issue brief identifies issues and challenges for individuals on Medicare affected by the hurricane and offers options for addressing these problems during the transition period. This issue…

  • 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…

  • Hispanics and the New Medicare Drug Benefit

    Poll Finding

    In a few short weeks, Medicare will undergo big changes that will have a major impact on more than 3 million Hispanic seniors and younger people with permanent disabilities who rely on Medicare for their health coverage. More than one in three Hispanics with Medicare lack coverage for their prescription drugs for at least part of the year. Many others will need to make decisions about their existing coverage and the new Medicare benefit. Starting…

  • Medicare Part D: Issues for Dual Eligibles on the Eve of Implementation

    Issue Brief

    Medicare Part D: Issues for Dual Eligibles on the Eve of Implementation This issue brief describes how dual eligibles are treated under the Medicare drug benefit and the issues raised by their transition from Medicaid to Medicare drug coverage. The brief also explores key differences in the Medicare drug benefit compared to Medicaid drug coverage (formularies, copayments, and appeals policies) which could make the shift especially challenging for dual eligibles. Issue Brief (.pdf)

  • Medicare Part D Issue Briefs

    Issue Brief

    These issue briefs, prepared by the Centers for Medicare Advocacy, Inc., provide information about how the Medicare drug benefit will affect beneficiaries. The briefs address issues related to dual eligibles, residents of nursing home and assisted living facilities, and the Part D exceptions and appeals processes. Medicare Part D: Issues for Dual Eligibles on the Eve of Implementation Medicare Prescription Drug Coverage for Residents of Nursing Homes and Assisted Living Facilities: Special Problems and Concerns…

  • The Exceptions and Appeals Process: Issues and Concerns in Obtaining Coverage Under the Medicare Part D Prescription Drug Benefit

    Issue Brief

    This issue brief describes how Medicare beneficiaries navigate the Medicare Part D exceptions, appeals, and grievances processes to get access to medically necessary prescriptions not covered under their Medicare prescription drug plans. It identifies and describes policy issues that may make it difficult for beneficiaries to utilize the processes. Issue Brief (.pdf)

  • Medicare Prescription Drug Coverage for Residents of Nursing Homes and Assisted Living Facilities: Special Problems and Concerns

    Issue Brief

    This issue brief describes Medicare drug benefit policy issues for residents of nursing homes and other long-term care settings, such as assisted living facilities and board and care facilities. The brief addresses differing rules for nursing home and non-nursing home settings, as well as for dual eligibles residing in long-term care facilities. Issue Brief (.pdf)

  • Dual Eligible Home and Community-Based Waiver Program Participants and the New Medicare Drug Benefit

    Issue Brief

    Dual eligible beneficiaries who participate in Medicaid home and community-based waiver programs usually do not have a centralized care provider to manage their health care benefits and services. For the new Medicare prescription drug benefit, no individual is designated to assist participants with their prescription drug plan selection, comparison of formularies, and if necessary, management of their exceptions and appeals should a medication be denied by their plan. This paper offers state and federal policymakers…

  • 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…