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.
For the third straight year, more insurers are entering the ACA Marketplaces or expanding their service area in 2021, creating more choices for consumers shopping for coverage during the 2021 open enrollment period.
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 describes the intersection between Medicaid and SNAP and discusses how information from SNAP may be leveraged by states when implementing the new Medicaid work requirements.
This brief highlights four key changes related to Medicare enrollment and eligibility that are designed to minimize gaps in coverage ad improve access to care.
This brief gauges Medicaid enrollees’ knowledge of the Medicaid renewal process and possible disenrollment, following the end of continuous enrollment on March 31, 2023.
A KFF survey of Medicaid enrollees largely fielded prior to states resuming their efforts to redetermine Medicaid enrollees’ eligibility reveals many enrollees are unprepared for the renewal process that could result in some losing their coverage either due to eligibility changes or paperwork issues.
A new KFF analysis finds that between 8 and 24 million people across the U.S. could be disenrolled from Medicaid during the unwinding of the program’s continuous enrollment provision. The estimates draw on data collected through KFF’s recent survey of state Medicaid and CHIP officials, conducted with the Georgetown University Center for Children and Families.
A new KFF analysis estimates that enrollment in Medicaid and the Children’s Health Insurance Program (CHIP) will have grown by 23.3 million enrollees, to nearly 95 million, by the end of March. That is when the federal continuous enrollment provision expires, and states can resume disenrollments, which have been paused since February 2020.
As Medicare Advantage continues to grow, a gradual but significant reshaping of the Medicare program is taking place. A new KFF analysis finds that nearly half of eligible Medicare beneficiaries – 28.4 million out of 58.6 million Medicare beneficiaries overall – are now enrolled in Medicare Advantage plans.
In 2024, Affordable Care Act (ACA) Marketplace enrollment hit a new record high, reaching over 21 million people. This policy watch discusses the the factors contributing to the increased enrollment in the fastest growing marketplaces.
© 2026 KFF