Enrollment - Research and Data from KFF

The Average Marketplace Deductible Grew by About $1,000 Per Person in 2026, With More Enrollees Shifting to Higher-Deductible Plans as Enhanced Tax Credits Expired

May 19, 2026

News Release

The average Affordable Care Act (ACA) Marketplace deductible experienced the steepest increase in history—growing by 37% or over $1,000, from $2,759 in 2025 to $3,786 in 2026 as enhanced premium tax credits expired, according to a new KFF analysis. After the enhanced tax credits ended, many Marketplace shoppers shifted toward lower-premium, higher-deductible plans.

Medicare Advantage Insurers Will See Higher Payments as CMS Backs Off a Key Payment Update

Apr 8, 2026

Quick Insights

The Trump administration this week backed off a key element of its Medicare Advantage rate proposal, resulting in billions of dollars in additional payments to private insurers.

An Early Look at Policy Decisions as States Get Ready to Implement Work Requirements

Apr 30, 2026

Issue Brief

This issue brief presents findings on policy decisions related to implementation of Medicaid work requirements. The findings draw on information from the annual survey of state Medicaid and CHIP program officials conducted by KFF and the Georgetown University Center for Children and Families for the 43 states (including DC) that will be required to implement work requirements and from focus groups with officials in eight states: Arizona, Indiana, Montana, Nebraska, Ohio, Pennsylvania, Virginia, and Washington.

Medicare Advantage 2013 Spotlight: Plan Availability and Premiums

Dec 3, 2012

Report

This data spotlight report examines trends in the Medicare Advantage marketplace, including the choices available to Medicare beneficiaries in 2013, premium levels and other plan features. It

California’s Previously Uninsured After The ACA’s Second Open Enrollment Period

Jul 30, 2015

Report

The Kaiser Family Foundation California Longitudinal Panel Survey is a series of surveys that, over time, tracks the experiences and views of a representative, randomly selected sample of Californians who were uninsured prior to the major coverage expansions under the Affordable Care Act (ACA). The initial baseline survey was conducted with a representative sample of 2,001 nonelderly uninsured Californian adults in summer 2013, prior to the ACA’s initial open enrollment period. The second survey in…

State Medicaid Eligibility Policies for Individuals Moving Into and Out of Incarceration

Aug 4, 2015

Issue Brief

This brief highlights how state eligibility policies for incarcerated individuals differ, based on a review of state statutes, regulations, Medicaid eligibility manuals and other Medicaid agency guidance publicly available online and Medicaid managed care contracts. Overall, state Medicaid eligibility policies for justice-involved individuals moving into and out of incarceration vary, and these policies affect if and when individuals may enroll in Medicaid and the scope of any resulting savings.

Modern Era Medicaid: Findings from a 50-State Survey of Eligibility, Enrollment, Renewal, and Cost-Sharing Policies in Medicaid and CHIP as of January 2015

Jan 20, 2015

Report

This 13th annual 50-state survey of Medicaid and CHIP eligibility, enrollment, renewal, and cost-sharing policies as of January 2015 provides a snapshot of state Medicaid and CHIP policies in place one year into the post-ACA era.

An Overview of New CMS Data on the Number of Adults Enrolled in the ACA Medicaid Expansion

Feb 2, 2015

Issue Brief

New preliminary data from the Medicaid Budget and Expenditure System (MBES) released by CMS details for the first time the number of adults enrolled in Medicaid under the new Affordable Care Act (ACA) Medicaid expansion category. This issue brief provides an overview of the new data as well as how it differs from the Performance Indicator data.

The Health-Care Enrollment Story Is in the States

Feb 19, 2015

From Drew Altman

In this column for The Wall Street Journal's Think Tank, Drew Altman examines the variation among states beneath the national Affordable Care Act’s Marketplace enrollment numbers released by the Department of Health and Human Services.

The Arizona KidsCare CHIP Enrollment Freeze: How Has It Impacted Enrollment and Families?

Sep 1, 2011

Issue Brief

This paper examines the impact on enrollment and families of Arizona's Dec. 21, 2009, decision to freeze enrollment in KidsCare, the state's Children's Health Insurance Program (CHIP). The CHIP enrollment freeze, enacted in response to recession-driven state budget pressures, saved the state $12.9 million in FY 2011, but has also resulted in more than 100,000 children being placed on a waiting list for coverage and the loss of $41 million in federal matching funds. Issue…

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