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Medicare Advantage plans gain beneficiaries from traditional Medicare who have lower average spending and use fewer health services than similar beneficiaries who choose to remain in traditional Medicare, according to a new KFF analysis.
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 group PDP enrollment increased.
This brief provides an overview of the major health-related COVID-19 federal emergency declarations that have been made since early on in the pandemic, summarizes the flexibilities triggered by each, and identifies the implications for their ending, related to coverage, costs, and payment for COVID-19 testing, treatments, and vaccines; Medicaid coverage and federal match rates; telehealth; access to medical countermeasures through FDA emergency use authorization (EUA); and other Medicaid, Medicare and private health insurance flexibilities.
Congress asked the U.S Department of Health and Human Services (HHS) Office of the Inspector General (OIG) to investigate whether Medicaid MCOs are providing medically necessary health care services to their enrollees. OIG found that Medicaid MCOs had an overall prior authorization denial rate of 12.5%–more than 2 times higher than the Medicare Advantage rate. Prior authorization denial rates ranged widely across and within parent firms and states. After a prior authorization request is denied, Medicaid enrollees can appeal, but it’s not always straightforward and many appeals don’t change the initial decision. Unlike in Medicare Advantage, if a Medicaid MCO upholds its original denial, there is no automatic, independent external medical review. OIG found that state Medicaid agency oversight of prior authorization denials is limited. The OIG report underscores concerns about prior authorization and access in Medicaid managed care, keeping this issue at the forefront of ongoing policy discussions.
While enrollment in Medicare Advantage, the private plan alternative to traditional Medicare, has grown steadily over the past decade, traditional Medicare remains the most common source of coverage for people who live in rural areas.
This analysis examines the extent to which states are providing health benefits to their Medicare-eligible retirees through Medicare Advantage arrangements. In 2024, a majority of states offer Medicare Advantage plans to their state retirees, with 13 offering Medicare Advantage exclusively.
A new analysis of health insurers’ financial data suggests that they remained profitable across markets in 2020 due in part to an unprecedented decrease in health spending and utilization in the spring as the COVID-19 pandemic led to massive shutdowns.
In this JAMA Forum column, KFF’s Larry Levitt examines the growing role of private insurance companies in public programs, including Medicare Advantage and Medicaid managed care, and the tradeoffs that result.
This data spotlight examines trends in benefits and cost-sharing for Medicare Advantage plans in 2010, including the wide variations found across plans and the rapid increase in cost sharing requirements for some benefits, including stays in skilled nursing facilities.
This report projects the impact of the new Medicare drug benefit on out-of-pocket spending for people who enroll in 2006. This analysis from November 2004 estimates that 6.9 million beneficiaries are projected to be affected by the coverage gap (the so-called "doughnut hole") in the standard Part D drug benefit.
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