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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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  • The Gap in Medigap

    Perspective

    This policy insight examines the low rate of Medigap coverage among people under age 65 with disabilities on Medicare and the federal law that governs consumer rights and protections related to Medigap open enrollment.

  • Overview of Medicaid Per Capita Cap Proposals

    Issue Brief

    The House Republican Plan (“A Better Way”) released on June 22, 2016, includes a proposal to convert federal Medicaid financing from an open-ended entitlement to a per capita allotment or a block grant (based on a state choice). This proposal is part of a larger package designed to replace the Affordable Care Act (ACA) and reduce federal spending for health care. Often tied to deficit reduction, proposals to convert Medicaid’s financing structure to a per…

  • Trends in State Medicaid Programs: Looking Back and Looking Ahead

    Issue Brief

    For 15 years, KCMU and HMA have conducted annual surveys of Medicaid programs across the country. The NAMD has formally collaborated on this project since 2014. This brief provides a look back at the enrollment and spending trends as well as the multitude of policy actions taken by states across key areas: eligibility and application processes; provider rates and taxes; benefits, pharmacy and long-term care since as well as highlighting more recent data on managed…

  • A Comprehensive Review of Research Finds That the ACA Medicaid Expansion Has Reduced the Uninsured Rate and Increased Access to Care in Expansion States

    News Release

    Multiple studies find that the Affordable Care Act’s Medicaid expansion has increased coverage, with enrollment exceeding expectations in some states, while producing budget savings for states and reductions in uncompensated care costs for hospitals, according to a Kaiser Family Foundation review of 61 studies and policy reports. The literature review provides a useful reference on the effects of the ACA Medicaid expansion at a time when the future of the expansion – and the ACA more…

  • Health and Health Coverage in the South: A Data Update

    Issue Brief

    This brief provides key data on the South and the current status of health and health coverage in the South to provide greater insight into the health needs in the region and the potential coverage gains that may be achieved through the ACA. It includes data on the uninsured, Medicaid expansion and eligibility for coverage.

  • Medicaid Expansion Spending and Enrollment in Context: An Early Look at CMS Claims Data for 2014

    Issue Brief

    This issue brief analyzes spending and enrollment data made available by CMS through the MBES. It breaks out spending and enrollment for the new adult group (Group VIII) that gained coverage in states that adopted the ACA Medicaid expansion. It looks at spending and enrollment for the new adult group in calendar year 2014, putting such data in the context of overall Medicaid spending and enrollment and examines trends across expansion states.

  • States with Section 1115 ACA Expansion Waivers, December 2015

    Feature

    This slide shows the current status of state decisions to use Section 1115 waivers to expand Medicaid. A total of 31 states including DC have adopted the ACA Medicaid expansion, including 6 states with ACA 1115 ACA expansion waivers. AZ has a pending waiver application that seeks changes to its expansion. MT and NH’s waivers will take effect on 1/1/16. PA originally expanded through a waiver but subsequently transitioned to a state plan amendment. TN…

  • Survey of Kentucky Residents on State Health Policy

    Poll Finding

    This survey of Kentucky residents gauges their views on health care policy in the state, including their preferences for the future of the Medicaid expansion and the state-based health insurance marketplace, Kynect. Kentucky has received national attention as the only Southern state to fully embrace the Affordable Care Act, though the state elected a new governor in November 2015 who campaigned on rolling back the Medicaid expansion and ending Kynect.