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The ACA Marketplace

2025 KFF Marketplace Enrollees Survey

About one in three ACA enrollees said they would be “very likely” to look for a lower-premium Marketplace plan If their premium payments doubled, according to a KFF survey conducted in 2025.

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Tracking the Public’s Views on the ACA

While overall opinion of the Affordable Care Act has been more favorable than unfavorable since 2017, there remain deep partisan divides. See how public opinion on the ACA has changed from the inception of the law to the present. This interactive tool highlights key moments when views shifted and trends based on party identification, income, age, gender, and race/ethnicity.

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  • Market Share of Largest Insurance Carrier in the Individual Insurance Market, 2010

    Feature

    Market Share of Largest Insurance Carrier in the Individual Insurance Market, 2010 Download Source Kaiser Family Foundation analysis of 2010 insurer filings to the National Association of Insurance Commissioners and the California Department of Managed Health Care using the Mark Farrah Associates Health Coverage Portal TM. Market share was calculated as the percent of the state’s individual insurance market enrollment accounted for by each parent company (measured in member months)  

  • Consumer Assistance in Health Reform

    Issue Brief

    With the open enrollment period for health insurance exchanges less than six months away, consumers are already asking questions about their new health care options under the Affordable Care Act (ACA). Even in the age of digital information, hands-on consumer assistance could play a key role in helping people understand their insurance choices come 2014 — a recent Kaiser Family Foundation poll showed that two thirds of the uninsured and a majority of Americans overall…

  • Health Coverage by Race and Ethnicity: The Potential Impact of the Affordable Care Act

    Issue Brief

    Executive Summary One of the key goals of the Affordable Care Act (ACA) is to reduce the number of uninsured through a Medicaid expansion and the creation of health insurance exchange marketplaces with advance premium tax credits to help moderate-income individuals pay for this coverage. Given that people of color are at disproportionate risk of being uninsured and having low incomes, the ACA coverage expansions could particularly benefit communities of color and advance efforts to…

  • Medicare’s Role in Health-Care Payment Reform

    From Drew Altman

    In this column for The Wall Street Journal's Think Tank, Drew Altman explores whether Secretary Burwell's announcement this week about Medicare's payment reform initiative is another sign that the public sector is becoming the engine driving payment and delivery reform.

  • Coverage of Contraceptive Services: A Review of Health Insurance Plans in Five States

    Report

    The Patient Protection and Affordable Care Act (ACA) requires most private plans to provide coverage for women’s preventive health care, including all prescribed FDA-approved contraceptive services, without cost sharing. To better understand how this provision is being implemented by health plans, Kaiser Family Foundation (KFF) staff, with the Lewin Group, reviewed the insurance plan coverage policies for 12 prescribed contraceptive methods (excluding oral contraceptives). This report presents information from 20 different insurance carriers in five…

  • How Many Employers Could be Affected by the Cadillac Plan Tax?

    Issue Brief

    As fall approaches, we can expect to hear more about how employers are adapting their health plans for 2016 open enrollments. One topic likely to garner a good deal of attention is how the Affordable Care Act’s high cost plan tax (HCPT), sometimes called the “Cadillac plan” tax or "Cadillac tax," is affecting employer decisions about their health benefits. The tax takes effect in 2018. The potential of facing an HCPT assessment as soon as…

  • Why Trump’s Dealmaking Model Doesn’t Fit Health Care Policy

    From Drew Altman

    In this column as an Axios contributor, Drew Altman discusses President Trump's threat to withhold cost sharing subsidies and questions whether his approach to deal making can bridge health care's partisan and ideological divide. "Health policy is not like real estate," he says.

  • Medicaid’s Role in West Virginia

    Fact Sheet

    This fact sheet provides data on Medicaid's role in West Virginia. It describes how ending the enhanced match for Medicaid expansion and implementing a per capita cap or block grant would affect West Virginia.