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This policy watch analyzes the latest data on Medicare Part D spending on GLP-1 drugs, initially approved to treat diabetes but in high demand as treatments for obesity, and shows how spending on these drugs has increased substantially in recent years.
Changes to the Medicare Part D benefit in the Inflation Reduction Act will mean lower out-of-pocket costs for Part D enrollees but higher costs for Part D plans overall, leading to concerns about possible premium increases. These FAQs provide context for understanding Part D premiums in 2025 and changes in recent years, and describe actions the Centers for Medicare & Medicaid Services (CMS) is taking to mitigate potential premium increases.
The Medicare drug price negotiation program could improve coverage of drugs selected for negotiation for Medicare beneficiaries because the law requires all Medicare Part D plans to cover each of the selected drugs, including all dosages and forms, when negotiated prices take effect. This analysis examines 2026 Medicare Part D formulary coverage of drugs selected for negotiation to measure the effect of the IRA's coverage requirement.
The Medicare Part D prescription drug benefit is provided by private plans, either Medicare Advantage plans that offer drug coverage (MA-PDs) or, for those in traditional Medicare, stand-alone prescription drug plans (PDPs). New data from CMS shows that 56 million people are enrolled in Part D plans as of February 2026, with more in MA-PDs than PDPs, reflecting higher overall enrollment in Medicare Advantage than in traditional Medicare. Enrollment in group MA-PD plans decreased while…
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…
On March 23, 2010, President Obama signed the Patient Protection and Affordable Care Act into law. The health reform law, as modified by the Health Care and Education Reconciliation Act of 2010 which passed the House of Representatives on March 21, 2010 and is under consideration in the Senate, makes several key changes to the Medicare Part D drug benefit to reduce Part D enrollees’ out-of-pocket liability when they reach the coverage gap, known as…
This issue paper examines the policies in the HIFA waiver initiative that provide incentives for states to use Medicaid/SCHIP funds to assist in the purchase of private insurance options. It also reports on how states have responded to these new policies and what key policy questions are raised about premium assistance programs. Issue Paper (.pdf)
Summary of Key Changes to Medicare in 2010 Health Reform Law . This brief provides a detailed look at the improvements in Medicare benefits, changes to payments for providers and Medicare Advantage plans, various demonstration projects and other Medicare provisions in the law. It includes a timeline of key dates for implementing the Medicare-related provisions in the law.
State Financing of the Medicare Drug Benefit: New Data on the "Clawback" Beginning in 2006, states will be obligated to finance part of the new Medicare prescription drug benefit via a monthly "clawback" payment to the federal government. This issue update analyzes the latest data and provides an overview of the state financing of the Medicare drug benefit. Issue Brief (.pdf)
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