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.
There are two ways you can get drug coverage. If you have traditional Medicare, you can sign up for a stand-alone prescription drug plan. Or you can join a Medicare Advantage plan that covers all your Medicare benefits including the prescription drug benefit.
Because states have flexibility in designing their programs, state Medicaid spending and enrollment varies across states. This data note provides an overview of total Medicaid spending per enrollee by eligibility group and state.
The Health Spending Explorer on the Peterson-KFF Health System Tracker helps users examine five decades worth of numbers documenting expenditures by federal and local governments, private insurers, and individuals on 15 categories of health services, including hospitals, physician and clinic care, and prescription drugs.
Medicaid helps fill gaps in coverage for veterans who are low-income, have disabilities, or are otherwise ineligible for military health benefits. It supports those with complex health needs and reduces out-of-pocket expenses. This brief presents five key facts about veterans with Medicaid and how policy changes in Congress could affect their coverage and access to care.
For most people with retiree health benefits, it makes sense to sign up for Medicare when you are first eligible to do so. Retiree health plans are typically designed to supplement Medicare, and might not pay your medical costs during any period that you were eligible for Medicare but not signed up for it.
This brief explains how Medicare Advantage payments are determined and provides an overview of policy options to change the Medicare Advantage payment system.
This brief analyzes Medicaid enrollment and spending trends for FY 2025 and FY 2026, based on data provided by state Medicaid directors as part of the 25th annual survey of Medicaid directors.
The latest data on U.S. health spending are now available on the Health Spending Explorer, an interactive tool that allows users to explore trends in health spending by federal and local governments, insurers, nursing care, hospital, and other service providers, and consumers.
This brief provides 5 key facts about the role Medicaid plays in delivering care to and financing care for people with HIV.
If you’re already in a Medicare Advantage plan and you want to switch to traditional Medicare, you should contact your current plan to cancel your enrollment and call 1-800-MEDICARE (1-800-633-4227). Note there are specific enrollment periods each year to do this.
© 2026 KFF