Enrollment - Research and Data from KFF

Capping Per Enrollee Spending Could Reduce Federal Medicaid Expenditures by $532 billion to Nearly $1 Trillion Over 10 Years Depending on How States Respond and Result in as Many as 15 Million People Losing Medicaid Coverage by 2034

Feb 26, 2025

News Release

As Congress considers ways to cut Medicaid spending to help finance the extension of federal tax cuts, a new KFF analysis finds that imposing a cap on federal spending per Medicaid enrollee—known as a “per capita cap”—could trigger a decrease in federal Medicaid spending over a 10-year period of $532 billion to almost $1 trillion, depending on how states respond to the cuts. An estimated 15 million people could lose Medicaid coverage by 2034, if…

Congressional District Interactive Map: People with Medicare and Medicaid (Dual-Eligible Individuals)

May 7, 2025

Issue Brief

The interactive maps illustrate how many people are enrolled in Medicare and Medicaid in each congressional district, including the number of people receiving full Medicaid and partial Medicaid benefits.

The Spotlight Is on Medicaid Cuts, But the ACA Marketplaces Could See a One-Third Cut in Enrollment

May 20, 2025

From Drew Altman

In his latest column, President and CEO Drew Altman shows how proposals contained in the House reconciliation bill could result in a one-third reduction in ACA Marketplace enrollment. “While all eyes are on the big Medicaid cuts being proposed in the House,” he writes, “significant changes are also being proposed that together would dramatically reduce enrollment in the ACA Marketplaces.”

Congressional District Interactive Map: Medicaid Enrollment by Eligibility Group

Oct 8, 2026

Issue Brief

KFF’s new interactive maps illustrate Medicaid enrollment by congressional district and eligibility group. In half of Republican congressional districts, at least 20% of residents are enrolled in Medicaid, and in half of Democratic districts, at least 25% are enrolled.

Open Enrollment: Insights from Medicare for Health Insurance Marketplaces

Oct 23, 2014

Perspective

This Policy Insight draws on the experiences of Medicare beneficiaries during Medicare’s annual enrollment period to consider whether consumers with health insurance coverage through the Affordable Care Act’s new marketplaces will shop for a better deal during their open enrollment season.

Open Enrollment: Insights from Medicare for Health Insurance Marketplaces

Oct 23, 2014

News Release

In the latest post in the Policy Insights series, Tricia Neuman draws on the experiences of Medicare beneficiaries during Medicare’s annual enrollment period to consider whether consumers with health insurance coverage through the Affordable Care Act’s new marketplaces will shop for a better deal during their open enrollment season. Previous columns in the Policy Insights series are also available on kff.org.

Explaining the 2015 Open Enrollment Period

Nov 6, 2014

Issue Brief

The brief provides an overview of what consumers can expect during the second annual Open Enrollment period under the Affordable Care Act (ACA), which runs from November 15, 2014 through February 15, 2015. It is the second opportunity for uninsured individuals to enroll in private insurance coverage, premium tax credits and cost sharing subsidies and the first time that people newly insured in 2014 can renew their health plan coverage and subsidies. It also overlaps…

JAMA Forum: Why Health Insurance Literacy Matters

Nov 26, 2014

Perspective

Larry Levitt's November 2014 post looks at the challenges with people not understanding basic health insurance concepts as millions of them evaluate and choose health plans during open enrollment season for insurance in 2015.

Getting into Gear for 2014: Briefing, Survey Examine 2013 Data From 50-State Survey of Medicaid and CHIP Eligibility and Enrollment Policies

Event Date: Jan 23, 2013

Event

Following the Supreme Court ruling upholding the Affordable Care Act (ACA) and as 2014 approaches, many states are moving into high gear to prepare for implementation of the major provisions of the law, including a new streamlined Medicaid enrollment system and, at states' option, the expansion of Medicaid. Nearly all states are pressing forward with information technology and process improvements to develop faster, streamlined Medicaid enrollment systems as required under the ACA, whether or not…

Medicare Beneficiaries by Type of Entitlement With and Without End-Stage-Renal Disease (ESRD)

Aug 8, 2025

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