Medicaid

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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.

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  • Data Analytics in Medicaid: Spotlight on Colorado’s Accountable Care Collaborative

    Issue Brief

    An integral component of Colorado Medicaid’s coordinated care initiative, the Accountable Care Collaborative, is the Statewide Data Analytics Contractor (SDAC), which is responsible for providing actionable data through a web portal to primary care providers and regional care collaborative organizations. The metrics and tools the SDAC provides undergird the effort to drive improvement in care management and individual and community health, and support the accountable care model.

  • Optimizing Medicaid Enrollment: Perspectives on Strengthening Medicaid’s Reach Under Health Care Reform

    Issue Brief

    The health reform law creates a national plan for near-universal health coverage that relies on a large expansion of Medicaid eligibility as its foundation. This brief draws on recent interviews with Medicaid program directors and other experts about the opportunities that health reform presents to optimize Medicaid by strengthening its enrollment and renewal operations and recasting it as an affordable health coverage program for working people and families. Executive Summary (.pdf) Issue Brief (.pdf)

  • Medicaid Policy Options for Meeting the Needs of Adults with Mental Illness under the Affordable Care Act

    Issue Brief

    This paper examines the salient issues raised in a November 2010 roundtable discussion of national and state experts convened by the Kaiser Commission on Medicaid and the Uninsured, in partnership with the Bazelon Center for Mental Health Law, to discuss Medicaid policy options available under health reform to help meet the needs of adults with mental illness. The Patient Protection and Affordable Care Act will expand the Medicaid program, offering the opportunity to improve access…

  • Small Area Variations and the ACA’s Coverage Expansions

    From Drew Altman

    A new Kaiser analysis sheds light on how the country might react to the Affordable Care Act (ACA) when it is implemented.  It looks at how the benefits of the ACA's coverage expansions will vary around the country by census areas (technically, Public Use Microdata Areas, or PUMAs).  PUMAs are artificial areas of about 100,000 people each created by the Census Bureau to provide more detailed demographic, social and economic information at the local level.  They…

  • Do State Decisions to Prioritize Renewals for Medicaid Enrollees Who are Likely Ineligible Affect Early Disenrollment Rates?

    Policy Watch

    Some states are prioritizing Medicaid renewals for enrollees flagged as likely to be ineligible. Early data from Arizona, Idaho, and Pennsylvania show disenrollment rates for flagged enrollees are higher than for other enrollees. This analysis considers why different state approaches to renewals may explain some – but not all – variation in disenrollment rates across the U.S.

  • KFF Data Note: Americans’ Views on the Personal Impact of the ACA and the Supreme Court’s Decision

    Perspective

    As the Supreme Court hears cases challenging the constitutionality of parts of the Affordable Care Act, a relatively small share of the public thinks the Supreme Court’s decision will have a lot of impact on their family (28 percent). At the same time, the public is divided as to whether the law overall will leave their own families better off (26 percent), worse off (33 percent), or if it won’t make much difference (34 percent).…

  • State Options for Medicaid Coverage of Inpatient Behavioral Health Services

    Report

    This report provides data to understand current patterns of Medicaid enrollees’ use of inpatient and outpatient substance use disorder and mental health treatment services; explains the options for states to access federal Medicaid funds for enrollees receiving IMD services; analyzes current Section 1115 waiver activity; and draws on interviews with policymakers using IMD waivers in Vermont, Virginia, and San Diego County to examine successes and challenges

  • How Will Medicare-for-all Proposals Affect Medicaid?

    Issue Brief

    As the debate over the future direction of our health care system heats up leading into the 2020 Presidential election, several Democratic proposals to create a single, federal, universal health insurance program known as Medicare-for-all have garnered significant attention. These proposals would replace most current public and private health insurance with a new federal program that would guarantee health coverage for all or nearly all U.S. residents. However, many details about how a new public…

  • Eight Trends Shaping 2026 Health Care Costs

    Other Post

    A new Peterson-KFF policy explainer lays out the health care trends shaping the 2026 policy debates, including rising premiums, spending on prescription drugs, health care price transparency and consolidation, artificial intelligence in health care, Medicaid funding cuts and other key program changes.