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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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  • February State Data for Medicaid Work Requirements in Arkansas

    Issue Brief

    Arkansas is one of seven states for which CMS has approved a Section 1115 waiver to condition Medicaid eligibility on meeting work and reporting requirements and the first state to implement this type of waiver. The new requirements were phased in for most enrollees ages 30-49 beginning in June 2018, and for individuals ages 19-29 starting in January 2019. Unless exempt, enrollees must engage in 80 hours of work or other qualifying activities each month and must report their work or exemption status by the 5th of the following month using an online portal; as of mid-December 2018, they also may report by phone. Monthly data related to the new requirements released by the Arkansas Department of Human Services show that over 18,000 people were disenrolled from Medicaid for failure to comply with the new requirements in 2018. Those who fail to comply with the requirements for any three months in 2019 can lose coverage beginning in April 2019. This brief looks at data for January 2019. Separate reports look at early implementation of the new requirements and enrollee experiences.

  • An Overview of State Approaches to Adopting the Medicaid Expansion

    Issue Brief

    State approaches to adopting the Affordable Care Act’s Medicaid expansion have varied greatly by state based on state law, the political context, or other factors. While it does not cover how every state has enacted the Medicaid expansion, this issue brief highlights some of the different approaches states have taken to adopt the Medicaid expansion. Each state’s circumstances are unique, and the actions taken by one state may not apply to another state’s circumstances.

  • “Partial Medicaid Expansion” with ACA Enhanced Matching Funds: Implications for Financing and Coverage

    Issue Brief

    The Affordable Care Act (ACA) provides enhanced federal matching funds to states that expand Medicaid to nonelderly adults up to 138% of the federal poverty level (FPL, $17,236/year for an individual in 2019). The ACA enhanced match (93% in 2019, and 90% in 2020 and thereafter) is substantially higher than states’ traditional Medicaid matching rate. A few states have sought Section 1115 demonstration waiver authority from the Centers for Medicare and Medicaid Services (CMS) to receive the substantially higher ACA enhanced match while limiting coverage to individuals at 100% FPL, instead of covering the full 138% FPL ACA group. To date, CMS has allowed states to receive the ACA enhanced Medicaid matching funds only if the entire expansion group is covered. CMS has not approved waiver requests seeking enhanced ACA matching funds for a partial coverage expansion in Arkansas or Massachusetts, while a request is pending in Utah. This brief explores the current rules for partial expansion and explains some of the potential implications for financing and coverage if CMS approves waivers to allow for partial expansion with enhanced matching funds.

  • Utilization and Spending Trends in Medicaid Outpatient Prescription Drugs, 2014-2017

    Issue Brief

    Although the outpatient drug benefit accounts for only 6% of total Medicaid spending, drug spending has increased by double digits in recent years, and is expected to grow faster than most other Medicaid services in the next 10 years. This issue brief examines drug spending and utilization from 2014 through 2017 by drug group, brand and generic status, and biologic status to understand the causes for this increase in spending.

  • Territories-Capped-Federal-Funding-as-a-Proportion-of-Federal-Medicaid-Funding-FY-2017

    Medicaid in the Territories: Program Features, Challenges, and Changes

    Issue Brief

    This brief draws on a survey of and interviews with Medicaid officials in U.S. Territories, as well as other research, to examine key issues and trends in their Medicaid programs. Territories differ from the states on key demographic, economic, and health status indicators. Unlike in the states, where federal Medicaid funding is not capped, and the federal share varies based on states’ per capita income, Medicaid in the territories is subject to a statutory cap and a fixed federal matching rate.