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Medicaid/CHIP Monthly Enrollment Tracker

Medicaid enrollment declined by 5 million people (6%) from May 2025 through May 2026. Child enrollment in Medicaid and CHIP declined in 49 states and DC, and adult enrollment dropped in all but five states (IA, MO, NC, OK, SD). KFF's tracker presents the most recent Medicaid enrollment data by month and state.

Medicaid work requirements

Medicaid and the Road Ahead: Spending Cuts, Work Requirements and What’s Next for States, Providers and Families

Event Date:

Passed last year, President Trump’s One Big Beautiful Bill Act made significant changes to Medicaid—the primary insurance provider for health and long-term care for people with low incomes. These changes are expected to lead to coverage loss for many current enrollees and will reduce funding for Medicaid, placing new financial pressures on states and health care providers. On July 23, KFF and States Newsroom hosted an event focused on the impacts of work requirements and other federal policy changes on states, health care systems, and people.

understanding medicaid

Medicaid Financing

Medicaid represents $1 out of every $5 spent on health care in the U.S. and is the major source of financing for states to provide health coverage and long-term care. This brief examines key questions about Medicaid financing and how it works.

Medicaid Program Integrity

This brief explains what is known about improper payments and fraud and abuse in Medicaid and describes ongoing state and federal actions to address program integrity.

Medicaid and Provider Taxes

All states except Alaska cover some state Medicaid costs with taxes on health care providers. This brief describes states’ current provider taxes and explores how rules governing provider taxes are changing.

Medicaid and Hospitals

Absorbing reductions in Medicaid spending could be challenging for hospitals, particularly for those that are financially vulnerable. This brief provides data on the reach of Medicaid across hospitals, patients, and charity care.

Medicaid Home Care

This issue brief provides an overview of what Medicaid home care (also known as “home- and community-based services”) is, who is covered, and what services were available in 2025.

Dual Eligibles

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  • California’s Uninsured on the Eve of ACA Open Enrollment

    Report

    This report presents the findings of a baseline survey of California’s uninsured adult population just before the start of the first open enrollment period under the Affordable Care Act (ACA). It will be followed by three other surveys over the course of the next two years that will capture the changing experiences and attitudes of this same group of 2,000 people over time, whether they obtain coverage or remain uninsured. The report analyzes the uninsured…

  • Distribution of Medicaid Beneficiaries Who Use Long-Term Services and Supports, by Dual Eligibility Status, FY 2010

    Feature

    Distribution of Medicaid Beneficiaries Who Use Long-Term Services and Supports, by Dual Eligibility Status, FY 2010 Download Source KCMU and Urban Institute estimates based on FY 2010 Medicaid Statistical Information System (MSIS) and Centers for Medicare & Medicaid Services (CMS)-64 data. Because 2010 data were unavailable, 2009 MSIS data were used for CO, ID, MO, NC, and WV, and then adjusted to 2010 CMS-64 spending levels.

  • Stop the Drop: Profiles of Innovative Medicaid Renewal Initiatives and Lessons for 2014 and Beyond

    Event Date:
    Event

    Under the Affordable Care Act (ACA), there will be a new continuum of coverage options available beginning in 2014. While there currently is significant focus on enrolling eligible people into these new coverage options, it also is important to plan for how to keep eligible people enrolled in coverage over time through successful renewals of coverage. Retention is important for supporting individuals’ access to and continuity of care and minimizing unnecessary administrative costs associated with…

  • Poor People Have the Same Needs as Others

    From Drew Altman

    Drew Altman, President and CEO of the Foundation, was asked to contribute to the New York Times' Room for Debate discussion on More Medicaid, More Health? In his piece, Dr. Altman concludes "Insurance -- public or private -- provides financial protection and access to medical care which low-income people need just as everybody else does. But it cannot by itself change behavior, alleviate poverty, or guarantee that the medical system is doing all it can…

  • Visualizing Health Policy: The Role of Medicaid and Medicare in Women’s Health Care

    Other Post

    This month’s Visualizing Health Policy infographic provides information about the role of Medicaid and Medicare in women’s health care: the proportion of US women who are covered by Medicaid and Medicare; how women comprise the majority of those covered by the Medicaid and Medicare programs and the majority of those receiving long-term services and supports (such as home health care); how women on Medicaid are poorer and sicker than women with private coverage; how Medicaid…

  • Improving the Financial Accountability of Nursing Facilities

    Report

    This report examines nursing facility expenditures to assess relative spending increases in areas such as nursing services, administrative costs, and profits. Using California as a case study, it explores reimbursement by cost category and a standard medical loss ratio (MLR) as potential policy options to improve nursing facility financial accountability and care quality.

  • Medicaid Eligibility, Enrollment Simplification, and Coordination under the Affordable Care Act: A Summary of CMS’s March 23, 2012 Final Rule

    Issue Brief

    This brief provides a summary of the Centers for Medicare and Medicaid Services' (CMS) March 23, 2012 final rule to implement the ACA provisions relating to Medicaid eligibility, enrollment simplification and coordination. The rule, which is effective Jan. 1, 2014, lays out procedures for states to implement the Medicaid expansion and the streamlined and integrated eligibility and enrollment system created under the ACA. Achieving this goal will require substantial process and system changes among state…

  • What Difference Does Medicaid Make? Assessing Cost Effectiveness, Access, and Financial Protection under Medicaid for Low-Income Adults

    Issue Brief

    This brief examines the cost and use of health care among low-income nonelderly adults who are covered by Medicaid relative to their expected service use and costs if they instead had employer-sponsored insurance (ESI) coverage or were uninsured. The analysis controls for a wide array of factors that also influence utilization and spending in an effort to isolate the specific effects of Medicaid coverage. Consistent with previous research, the analysis underscores how Medicaid facilitates access…

  • The Medicaid Resource Book

    Report

    This reference book describes four pivotal aspects of how the Medicaid program operates — who it covers, what it covers, how it is financed, and how it is administered. It was written to assist the public and policymakers in understanding the structure and operation of the Medicaid program.