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State Health Policy and Data

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Tracking Insurer Exits and Entries in the ACA Marketplaces. U.S. map shows that as of June 8, 2026, six carriers across 18 states have announced that they will exit the ACA Marketplaces partially or fully for plan year 2027.

Tracking Insurer Participation Changes in the ACA Marketplaces in 2027

As of June 8, six health insurers have announced that they will exit ACA Marketplaces in 18 states next year, potentially leaving hundreds of thousands of ACA enrollees with fewer insurance options. KFF’s new tool tracks changes in ACA insurer participation, including the recently announced exits by Cigna Health, CareSource, PacificSource, Providence Health, Scott and White, and Taro Health.

State by State Data

More than 800 up-to-date, state-level health indicators can be mapped, ranked, and downloaded.

Explore the latest national and state-specific data and policies on women’s health, including health status, insurance coverage, use of preventive services, and more.

Most "dual-eligible" individuals (8.9 million in 2024) are eligible for Medicaid benefits that are not otherwise covered by Medicare, including long-term care.

Use this tool to build a custom report compiling health-related data for a single state or multiple states.

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  • Economic and Fiscal Trends in Expansion and Non-Expansion States: What We Know Leading Up to 2014

    Issue Brief

    This brief was prepared with the Rockefeller Institute of Government, the public policy research arm of the State University of New York. It is designed to provide some insight into the underlying economic and fiscal conditions in expansion and non-expansion states leading up to 2014 by looking at the typical (i.e. median) state for each group. This analysis will provide a framework against which to measure the impact of expansion decisions going forward. The sections…

  • The California Health Care Landscape

    Fact Sheet

    This fact sheet provides an overview of population health, health coverage, and the health care delivery system in California in the era of health reform.

  • Data Note: Medicare Advantage Enrollment, by Firm, 2015

    Issue Brief

    A number of potential mergers and acquisitions between large firms that offer health insurance have been reported in the press. These mergers could affect consumers in the individual market, enrollees in the new federal and state Marketplaces, employees with employer-sponsored insurance, as well as people covered by public programs such as Medicare. This Data Note examines the Medicare Advantage market share of large firms that have reportedly engaged in merger and acquisition discussions: Aetna, Anthem,…

  • Children’s Coverage: What Matters Most to Parents Results from Focus Groups in 6 Cities

    Issue Brief

    This report is based on based on focus group discussions with parents with moderate incomes enrolled in private coverage (employer sponsored or Marketplace) who had children in public coverage (primarily CHIP) or children with private coverage. This report is based on 14 focus group discussions conducted by the Kaiser Family Foundation and John Snow, Inc. in six cities during February and March 2015. Sites included Birmingham, AL, Chicago, IL, Denver, CO, Philadelphia, PA, and Tampa,…

  • The ACA and People with HIV: Profiles from the Field

    Issue Brief

    This brief provides profiles of twelve individuals living with HIV to offer an in-depth look at how the Affordable Care Act (ACA) has affected their healthcare and coverage. Participants live in California, Florida, Georgia, New York, and Texas and discuss their enrollment and coverage experience, including whether they got new coverage (in the Marketplace or Medicaid), how their HIV care has been affected, and the role of the Ryan White HIV/AIDS Program.

  • The ACA and People with HIV: Profiles from the Field

    News Release

    New in-depth profiles of 12 people with HIV highlight how the Affordable Care Act’s coverage expansions impacted their access to coverage and care. While some experienced serious bumps along the way, those who gained coverage through Medicaid and the Marketplaces were largely able to meet both their HIV and non-HIV care needs. At the same time, the Ryan White HIV/AIDS Program continued to play a role in HIV care and coverage, both for those who remained…

  • Seniors and Income Inequality: How Things Get Worse With Age

    News Release

    In his latest column for The Wall Street Journal’s Think Tank, Drew Altman discusses why seniors need to be included in the national discussion on income inequality, especially as proposals to change Medicare and Social Security are considered. All previous columns by Drew Altman are available.

  • Medicaid Expansion, Health Coverage, and Spending: An Update for the 21 States That Have Not Expanded Eligibility

    Issue Brief

    Ever since the Supreme Court ruled in June 2012 that states could effectively choose whether or not to accept the Affordable Care Act’s expansion of Medicaid eligibility, that choice has been one of the most prominent and often one of the most contentious issues for states. In this report, we provide new projections of the impact of Medicaid expansion on health coverage, Medicaid enrollment, and costs in states that have not expanded Medicaid.

  • Demonstrations to Improve the Coordination of Medicare and Medicaid for Dually Eligible Beneficiaries: What Prior Experience Did Health Plans and States Have with Capitated Arrangements?

    Report

    This report examines the Center for Medicare and Medicaid Services (CMS) financial alignment demonstration for beneficiaries dually eligible for Medicare and Medicaid, with a focus on the extent to which participating states and health plans have prior experience with capitated managed care arrangements under Medicare or Medicaid, and specifically for this population. Under these capitated financial alignment demonstrations, health plans contract with the state and CMS (a three-way contract) to provide both Medicare and Medicaid…