Enrollment

Enrollment in Affordable Care Act (ACA) Marketplace health plans reached a record 24.3 million people, more than double the total in 2020, with most of the growth occurring in states won by President Trump in the 2024 election, a new KFF analysis finds.  Almost all states have seen increases in…

In his latest column, president and CEO Drew Altman discusses why debate about extending the ACA enhanced tax credits set to expire this year has been slow to develop, and why it could matter to Republicans politically if the tax credits are not extended.

This brief evaluates what is currently known about fraud and abuse in the Affordable Care Act (ACA) Marketplace, including how the final Marketplace Integrity and Affordability Rule and the recently enacted budget reconciliation law change existing Marketplace enrollment and eligibility standards.

Medicare enrollment

Overall enrollment in the individual market fell 5% to 13.7 million in the first quarter of 2019 following the repeal of the Affordable Care Act’s individual mandate penalty.

While Medicare Advantage enrollment is highly concentrated among a small number of firms, UnitedHealthcare has seen the largest and fastest growing share of enrollees over the past decade. Learn more in this Chart of the Week.

Following enrollment gains since the Affordable Care Act, Medicaid and CHIP enrollment declined in 36 states, by 1.9 million nationwide, between December 2017 and July 2019.

This Health Policy 101 chapter provides an overview of the Affordable Care Act (ACA), a major reform of the U.S. health care system aimed at reducing high uninsured rates and alleviating issues like high out-of-pocket costs and coverage exclusions for preexisting conditions. The ACA significantly altered many aspects of the health system and the chapter explores its mechanisms, such as the Health Insurance Marketplaces, and the evolution of the law since its passage in 2010.