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.
As policymakers in Washington discuss ways to curb the rising cost of prescription drugs, KFF has released a summary and analysis of proposals and recently finalized initiatives that affect Medicare prescription drug spending.
This animation explains how rebates for prescription drugs work and why they matter in the debate about lowering drug costs. The video breaks down how prescription drug rebates are determined, who benefits from them, how they affect spending by insurers and consumers and the role of pharmacy benefit managers in the process.
In response to higher drug spending growth and heightened attention to drug prices, policymakers have proposed a variety of policy initiatives to lower the cost of prescription drugs in Medicare. This brief examines in detail the range of proposals offered by the Trump Administration and members of Congress for lowering the cost of prescription drugs, their known effects on the federal budget, and their potential implications for beneficiaries and other stakeholders.
With questions being raised about potential delays in U.S. Postal Service delivery, a new KFF data note estimates 14 million enrollees in Medicare Part D and large employer plans relied on mail-order pharmacies for at least one prescription in 2018, with a total of over 170 million prescriptions fulfilled.
Potential changes in mail service delivery could be a concern for people who receive prescription drugs from mail-order pharmacies. To understand who may be most affected by delays in the delivery of prescription drugs, we analyzed use of mail order in Medicare Part D and large group employer plans, and identified the therapeutic classes and specific drugs with the highest volume of fills by mail-order pharmacies in each market.
This brief examines how the CMS Innovation Center (also known as CMMI) and Section 402 demonstration authority could become pathways for the Biden Administration to implement policy changes related to prescription drug costs.
Nearly 3 million Medicare Part D enrollees had out-of-pocket drug spending above the catastrophic threshold in a recent five-year period, finds a new KFF analysis that takes a comprehensive look at how many people on Medicare have drug expenses high enough to push them above that limit.
In response to prescription drug spending growth and heightened attention to drug prices, some policymakers have proposed allowing the federal government to negotiate the price of prescription drugs for Medicare and private payers. This brief describes the current status of drug price negotiation proposals, looks back at the history of proposals to give the federal government the authority to negotiate drug prices in Medicare, describes the negotiation provisions in key legislation (H.R. 3), and discusses the potential spending effects for the federal government, beneficiaries, and private payers.
Medicare Part D, the outpatient prescription drug benefit for Medicare beneficiaries, provides catastrophic coverage for high out-of-pocket drug costs, but there is no limit on the total amount that beneficiaries have to pay out of pocket each year. Policymakers on both sides of the aisle support proposals to modify the design of the Part D benefit and establish a hard cap on out-of-pocket prescription drug spending by Part D enrollees. This analysis shows the number of Part D enrollees without low-income subsidies who have exceeded the catastrophic coverage threshold annually, and over multiple years, based on 2007-2019 Part D claims data.
The Medicare Part D program provides an outpatient prescription drug benefit to older adults and people with long-term disabilities in Medicare who enroll in private plans, including stand-alone drug plans and Medicare Advantage drug plans. This analysis provides the latest data about Part D enrollment, premiums, and cost sharing in 2021 and trends over time.
© 2026 KFF