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 roughly 1 of every 6 emergency room visits and inpatient hospital stays in 2017, patients came home with at least one out-of-network medical bill, a new KFF analysis finds.
This analysis examines how often patients get hit with surprise medical bills, what circumstances tend to give rise to them and what proposals are being considered to protect consumers from this problem.
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. This analysis provides the latest data about Medicare Part D coverage and costs in 2019 and trends over time, including enrollment, premiums, cost sharing, and participation in the low-income subsidy program.
The analysis finds that people who switched from traditional Medicare to Medicare Advantage in 2016 had health spending in 2015 that was $1,253 less, on average, than the average spending for beneficiaries who remained in traditional Medicare (after adjusting for health risk). The findings suggest that the current payment method may systematically overestimate expected costs of Medicare Advantage enrollees. Adjusting payments to reflect Medicare Advantage enrollees’ prior use of health services could potentially lower total Medicare spending by billions of dollars over a decade.
This 17th annual survey of the 50 states and the District of Columbia (DC) provides data on Medicaid and the Children’s Health Insurance Program (CHIP) eligibility, enrollment, renewal, and cost sharing policies as of January 2019.
This issue brief provides an overview of Medicare, the health insurance program for people ages 65 and over and younger people with long-term disabilities. The brief review the characteristics of people on Medicare, what Medicare covers, benefit gaps and supplemental coverage, beneficiaries' out-of-pocket health care spending, program spending and financing, payment and delivery system reform, and issues for the future of Medicare.
Medicare Part D has helped to make prescription drugs more affordable for people with Medicare, yet many beneficiaries continue to face high out-of-pocket costs for their medications. Specialty tier drugs are a particular concern for Part D enrollees in this context. This analysis draws on data from Medicare’s Plan Finder website to calculate expected annual 2019 out-of-pocket costs for 30 specialty tier drugs used to treat four health conditions—cancer, hepatitis C, multiple sclerosis, and rheumatoid arthritis.
Despite Medicare’s protections, Part D enrollees with serious health conditions can face thousands of dollars in annual out-of-pocket costs for expensive specialty drugs, a new KFF anaylsis finds.
This conference report summarizes discussions at a March 2018 conference in Washington with 30 leaders from the health care community to launch Initiative 18/11, a partnership between the Society of Actuaries and KFF to address the rising cost of health care in the United States. It also lays out the next steps for the initiative.
KFF analysis of Healthcare.gov data from marketplace plans on the federal insurance exchanges shows that despite the changes to the Affordable Care Act in recent years, deductibles for those with low incomes have remained relatively stable since 2017.
© 2025 KFF