The independent source for health policy research, polling, and news.
KFF’s policy research provides facts and analysis on a wide range of policy issues and public programs.
KFF designs, conducts and analyzes original public opinion and survey research on Americans’ attitudes, knowledge, and experiences with the health care system to help amplify the public’s voice in major national debates.
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the organization’s core operating programs.
In this piece, we discuss Medicare coverage of obesity treatments, the potential cost implications if Medicare covers anti-obesity drugs, and how the Inflation Reduction Act could potentially address these cost concerns.
The brief provides a quick explainer of the prescription drug provisions in the Inflation Reduction Act signed into law on August 16, 2022 and presents new estimates on how many Medicare beneficiaries could be helped by those provisions.
This analysis provides the latest data about Medicare Part D enrollment, premiums, and cost sharing in 2022 and trends over time, including information about stand-alone prescription drug plans (PDPs) and Medicare Advantage prescription drug plans.
The brief provides a quick explainer of the prescription drug provisions in legislative text released by the Senate Finance Committee to be included in a forthcoming reconciliation bill and presents new estimates on how many Medicare beneficiaries could be helped by those provisions.
This brief considers how default enrollment into Medicare Advantage might work, potential challenges with this approach, and implications for beneficiaries, insurers, providers, agents and brokers, and the federal budget.
To understand the role of Medicare Part D stand-alone prescription drug plans in serving rural Medicare beneficiaries, this data note analyzes 2025 Part D enrollment in PDPs and Medicare Advantage drug plans by geographic area nationally and at the state level.
In a new Trump administration executive order, the Secretary of HHS is directed to work with Congress to implement a change in law to delay negotiation of so-called “small molecule” drugs under the Inflation Reduction Act's Medicare Drug Price Negotiation Program for an additional 4 years. This brief analyzes how many of the drugs previously selected for negotiation would not have been eligible if this policy had been in place at the time.
The Centers for Medicare & Medicaid Services (CMS) recently announced the drugs selected for the second round of negotiation for the Medicare Drug Price Negotiation Program, which was established by the Inflation Reduction Act. These FAQs address several questions related to Medicare’s drug price negotiation program and CMS's implementation of the program, with a focus on the details that apply for 2027, the second year that negotiated prices will be available under the program.
The Inflation Reduction Act of 2022 includes several provisions to lower prescription drug costs for people with Medicare and reduce drug spending by the federal government, including a number of changes to the Medicare Part D drug benefit. This brief provides an overview of the Part D benefit design and Part D enrollee cost-sharing requirements in 2023 and changes coming in 2024 and 2025.
This Health Policy 101 chapter explores Medicare, a federal health insurance program covering more than 68 million people, established in 1965 for people age 65 or older and later expanded to cover people under age 65 with long-term disabilities. In addition to detailing Medicare eligibility, coverage, and spending, the chapter examines the increased role of private plans in providing benefits and the financing challenges posed by increasing health care costs and an aging population.
© 2026 KFF