Medicare

New & Noteworthy

What to Know About Pharmacy Benefit Managers and Federal Efforts at Regulation

The top three pharmacy benefit managers (PBMs) manage 79% of prescription drug claims on behalf of 270 million people. We look at the role PBMs play in influencing drug costs and access to medicines, as well as efforts to regulate them.

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).

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.

Related: FAQs on Medicare Financing and Trust Fund Solvency

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  • The Uncertain Future of Medicare’s Stand-Alone Prescription Drug Plan Market and Why It Matters

    Issue Brief

    This brief focuses on the stand-alone Medicare Part D prescription drug plan marketplace and its somewhat uncertain future, in light of recent trends in plan availability and the potential for another year of premium increases in 2026, in part depending on what the Trump administration decides to do with the temporary Part D premium stabilization demonstration. The brief explains why the stability of the PDP market matters, both for people in traditional Medicare who want prescription drug coverage but also for the viability of traditional Medicare as an option vis a vis Medicare Advantage.

  • Key Facts About Medicare Part D Enrollment, Premiums, and Cost Sharing in 2025

    Issue Brief

    The Medicare Part D program provides an outpatient prescription drug benefit to more than 50 million older adults and people with long-term disabilities in Medicare who enroll in private plans, including stand-alone prescription drug plans (PDPs) to supplement traditional Medicare and Medicare Advantage prescription drug plans (MA-PDs) that include drug coverage and other Medicare-covered benefits. This brief analyzes Medicare Part D enrollment and costs in 2025 and trends over time, based on data from the Centers for Medicare & Medicaid Services (CMS).

  • Medicare Advantage Provider Networks Limit Enrollees to About Half of the Physicians in Their Area That Are Available to Beneficiaries in Traditional Medicare, on Average

    News Release

    With Medicare’s annual open enrollment period underway, a new KFF analysis finds that Medicare Advantage enrollees, on average, had access to just under half (48%) of the physicians in their area who were available to people enrolled in traditional Medicare. The finding illustrates a key tradeoff for beneficiaries in choosing Medicare Advantage.

  • Medicare Advantage in 2025: Enrollment Update and Key Trends

    Issue Brief

    In 2025, more than half (54%) of eligible Medicare beneficiaries are enrolled in Medicare Advantage plans. This brief provides current information about Medicare Advantage enrollment, by plan type and firm, and shows how enrollment varies by state and county.

  • Recent Trends in GLP-1 Use and Spending in Medicare

    Issue Brief

    Ahead of the Trump administration’s planned expansion of Medicare coverage for GLP-1s to treat obesity through temporary models and the availability of Medicare’s negotiated price for certain GLP-1 products beginning in 2027, this analysis examines CMS’s Medicare Part D claims data from 2019 to 2024 to document the increase in the number of beneficiaries being treated with GLP-1 drugs and the growth in Medicare spending and claims for these drugs.