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.
A new KFF analysis finds that the 10 top-selling prescription drugs under Medicare Part D comprised less than 1 percent of all covered drugs in 2021, but accounted for 22 percent, or $48 billion, of gross Medicare Part D drug spending that year.
New weight loss drugs, such as Novo Nordisk’s Ozempic and Wegovy (semaglutide) and Eli Lilly’s Mounjaro (tirzepatide), could be transformative for people who struggle with obesity and obesity-related medical conditions, but there are major questions to consider related to insurance coverage, the cost of the drugs, and who has access. On August 4, three experts joined Larry Levitt, executive vice president for health policy at KFF, for a 45-minute “Health Wonk Shop” discussion about the questions surrounding what a new generation of weight loss drugs means for patients and payers.
With the Biden administration’s announcement of the first 10 drugs to be negotiated for Medicare as part of the Inflation Reduction Act (IRA), an array of legal challenges from the pharmaceutical industry is potentially the biggest obstacle to implementation. On Tuesday, September 12, two legal experts and a health policy expert joined Larry Levitt, executive vice president for health policy at KFF, for a 45-minute discussion about the legal issues underpinning these lawsuits and how they intersect with the policy goals of the legislation.
This issue briefs lays out 10 reasons why Medicare Advantage enrollment has been growing and why we can expect more growth in the years to come.
Under the Inflation Reduction Act, the federal government for the first time will negotiate directly with drug companies to determine the prices that Medicare will pay for certain high expenditure drugs covered under Medicare Part D (starting in 2026) and Part B (starting in 2028).
A KFF analysis shows that a new out-of-pocket spending cap in Medicare Part D could translate into savings for well over 1 million beneficiaries when it takes effect next year, including more than 100,000 people each in California, Florida and Texas, based on analyses of drug spending in 2021.
© 2026 KFF