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5 Facts: Medicaid Fraud, Waste, Abuse and Improper Payments

Program integrity efforts work to prevent and detect fraud, waste, and abuse; increase program transparency and accountability; and recover improper payments. This brief explains what we know about these issues and efforts to address program integrity.

Medicaid: What to Watch in 2026

Medicaid: What to Watch in 2026

In this brief, KFF explores how state fiscal pressures are likely to converge with the implementation of the 2025 reconciliation law to affect Medicaid coverage, financing, and access to care over the next year, especially leading up to the midterm elections.

Medicaid Watch

Featuring policy research, polling and news about how Medicaid is changing, and the impact of those changes due to the tax and spending cuts law

Medicaid and work

Tracking Medicaid Work Requirements:
Data and Policies

To implement Medicaid work requirements, states will need to make important policy and operational decisions, implement needed system upgrades or changes, develop new outreach and education strategies, and hire and train staff, all within a relatively short timeframe. The information tracked here can serve as a resource to understand Medicaid work requirements and state options, gauge readiness, and track implementation of the requirements.

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 and Provider Taxes

All states except Alaska cover some state Medicaid costs with taxes on health care providers. This brief uses data from KFF’s 2024-2025 survey of Medicaid directors to describe current practices and the federal rules governing them.

5 Facts: 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 in 2025

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.

5 Facts: 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.

2025 Medicaid Home Care survey

Payment Rates Ahead of 2025 Reconciliation Law

This issue brief describes Medicaid payment rates for home care and other workforce supports that are in place in 2025, before the majority of the 2025 reconciliation law provisions start taking effect.

Home Care Support for Family Caregivers in 2025
number of responding states, including DC, that allow payments for family caregivers by type of home care program and type of caregiver.

This issue brief describes the availability of self-directed services and supports for family caregivers in Medicaid home care in 2025, before most provisions in the reconciliation law take effect.

States’ Management of Home Care Spending

This issue brief describes the mechanisms states are currently using to limit Medicaid spending on home care and their plans for adopting new mechanisms in state fiscal year (FY) 2026.

Waiting Lists for Medicaid Home Care, 2016 to 2025
A Look at Waiting Lists for Medicaid Home- and Community-Based Services from 2016 to 2025

This data note provides new information about waiting lists in Medicaid home care before many of the provisions in the 2025 reconciliation law go into effect.

Eligibility and coverage

  • Eligibility, Enrollment, and Renewal Policies

    KFF's survey findings capture state actions that seek to improve the accuracy and efficiency of Medicaid and CHIP enrollment and renewal processes, as of January 2025.

  • Seniors and People with Disabilities

    More than 1 in 3 people with disabilities (15 million) have Medicaid (35%). In comparison, only 19% of people without disabilities have Medicaid.

  • Children with Special Needs

    Amid debates about proposed cuts to federal Medicaid spending, this brief analyzes key characteristics of children with special health care needs and explores how Medicaid provides them with coverage.

  • People With Intellectual and Developmental Disabilities

    Among the estimated 8 million people with intellectual and developmental disabilities (I/DD), over three million have Medicaid coverage.

  • Adults with Chronic Conditions

    Among working age adults enrolled in Medicaid, approximately three quarters have one or more chronic conditions, and nearly one-third have three or more.

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  • 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.

  • The Effects of Medicaid Expansion under the ACA: Studies from January 2014 to January 2020

    Report

    This literature review summarizes findings from 404 studies of the impact of state Medicaid expansions under the ACA published between January 2014 (when the coverage provisions of the ACA went into effect) and January 2020. It includes studies, analyses, and reports published by government, research, and policy organizations using data from 2014 or later. This body of research suggests that the expansion presents an opportunity for gains in coverage, improvements in access and financial security, and economic benefits for states and providers.

  • Addressing the Justice-Involved Population in Coronavirus Response Efforts

    Issue Brief

    Addressing health care needs of people moving into and out of the criminal justice system and staff who work them is an important component of coronavirus response efforts and protecting and promoting public health within the communities in which correctional facilities are located. This brief provides data on spread of coronavirus within correctional facilities, discusses the health risks for the justice-involved population and the staff who work with them, identifies the role Medicaid can play in response efforts for justice-involved individuals, and highlights other steps correctional systems can take to mitigate risk of coronavirus for the justice-involved population and promote public health.

  • Why it Matters: Tennessee’s Medicaid Block Grant Waiver Proposal

    Issue Brief

    On November 20, 2019, Tennessee submitted an amendment to its longstanding Section 1115 Waiver that would make major financing and administrative changes to its Medicaid program. The Centers for Medicare and Medicaid Services (CMS) certified the waiver as complete and opened a federal public comment period through December 27, 2019. Most significantly, Tennessee is requesting to receive federal funds in the form of a “modified block grant” and to retain half of any federal “savings” achieved under the block grant demonstration. This brief provides a high-level overview of the proposed waiver changes and context for why these changes matter.

  • 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.