Enrollment - Research and Data from KFF

Analysis of National Trends in Medicaid and CHIP Enrollment During the COVID-19 Pandemic

Apr 4, 2023

Issue Brief

This data note looks at national and state-by-state Medicaid and CHIP enrollment data through December 2022. After declines in enrollment from 2017 through 2019, preliminary data for December 2022 show that total Medicaid/CHIP enrollment grew to 92.3 million, an increase of 21.2 million from enrollment in February 2020 (29.8%), right before the pandemic and when enrollment began to steadily increase (Figure 1).

Eliminating the Medicaid Expansion Federal Match Rate: State-by-State Estimates

Feb 13, 2025

Issue Brief

This analysis examines the potential impacts on states and Medicaid enrollees of eliminating the 90% federal match rate for the Affordable Care Act (ACA) expansion. Eliminating the federal match rate for adults in the Medicaid expansion could reduce Medicaid spending by nearly one-fifth ($1.9 trillion) over a 10-year period and up to nearly a quarter of all Medicaid enrollees (20 million people) could lose coverage.

The Debate Over Federal Medicaid Cuts: Perspectives of Medicaid Enrollees Who Voted for President Trump and Vice President Harris

Feb 25, 2025

Report

The Republican-led Congress is considering plans to cut Medicaid to help pay for tax cuts, with the House budget resolution targeting $880 billion or more in potential reductions to federal Medicaid spending. To better understand the experiences of Medicaid enrollees and their perceptions of potential changes to the program, KFF conducted five virtual focus groups in January, including three groups with participants who had voted for President Trump in the 2024 election and two groups…

As of July 2025, 42 States Contract with Comprehensive, Risk-Based Manged Care Plans to Deliver Medicaid Services

10 Things to Know About Medicaid Managed Care

Mar 23, 2026

Issue Brief

Our updated explainer provides an overview of comprehensive managed care, the most common way states deliver Medicaid services to enrollees.

2025 California Health Benefits Survey

Nov 18, 2025

Report

The survey provides an in-depth look at trends in employer-sponsored coverage in California, including premiums, cost sharing, offer rates, and employer strategies to manage costs and access to care, including comparisons to the nation overall.

Marketplace Plan Selections by Race/Ethnicity

Apr 1, 2026

State Health Facts Indicator

Implementing Medicaid Work Requirements: Lessons from Unwinding

Apr 14, 2026

Issue Brief

This brief highlights lessons from “Medicaid unwinding" that could help inform work requirement implementation. State experience with Medicaid unwinding illustrated the complexity of Medicaid eligibility processes and that outcomes reflect federal and state policy decisions, implementation and systems.

Senate Finance Language Would Further Cut Federal Spending for Medicaid Expansion States

Jun 20, 2025

Policy Watch

Prior KFF analysis allocated CBO’s federal Medicaid spending reductions and enrollment losses across the states, and this policy watch builds on that analysis to examine the potential impacts in expansion states compared with non-expansion states.

Survey Offers Early Look at States’ Differing Approaches to Implementing Medicaid Work Requirements Amid Cost and Time Constraints and Uncertainty from Delayed Federal Guidance

Apr 30, 2026

News Release

A new KFF survey of state Medicaid officials and focus groups in eight states captures the different choices states are making about how to implement Medicaid work requirements, with seven states planning for a more restrictive approach to verifying work or exemption status or to implement work requirements early. These implementation plans are taking shape as states encounter time, cost, and other constraints as well as uncertainty about how to define and verify certain exemptions…

Medicaid and CHIP Eligibility, Enrollment, and Renewal Policies as States Prepare for Major Medicaid Policy Changes

Apr 30, 2026

Report

The 24th annual survey of state Medicaid and CHIP program officials conducted by KFF and the Georgetown University Center for Children and Families (CCF) provides a baseline of state Medicaid and CHIP eligibility, enrollment, and renewal policies in place as of January 2026 as they prepare to implement the changes included in the 2025 reconciliation law.

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