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The Effects of Medicaid Expansion under the ACA: Updated Findings from a Literature Review

Our summary reviews findings from 108 studies of the impact of state Medicaid expansions under the ACA published between January 2014 and January 2017.
  • Coverage
  • Uninsured
  • Access, Utilization and Health Outcomes
  • Economic Outcomes


Key Questions: Section 1115 Medicaid Demonstration Waivers

A look at the current landscape of demonstration waivers and what to watch going forward.

Video Slideshow: What’s at Stake Under a Block Grant or Per Capita Cap?

An explainer on how Medicaid is financed, whom it covers and how spending is distributed across groups, as policymakers consider restructuring the program.

5 Key Questions: Medicaid Block Grants & Per Capita Caps

  • What Medicaid financing changes are being considered?
  • How would a block grant work?
  • How would a per capita cap work?
  • What details do you need to know?
  • What are the implications of these changes?

State Medicaid Fact Sheets

Our fact sheets highlight the role and reach of Medicaid in every state.

Current Flexibility in Medicaid: An Overview of Federal Standards and State Options

An overview of current federal standards and state options in Medicaid to help inform upcoming debates about increasing state flexibility in the program as part of efforts to restructure Medicaid financing.

Medicaid: A Pocket Primer

Medicaid is the nation’s public health insurance program for people with low income. It covers more than 70 million people and provides significant financing for hospitals, community health centers, physicians, and nursing homes, and jobs in the health care sector.

Medicaid Expansion States, By Governors' Political Party

Total newly eligible Medicaid expansion
enrollees: 10.7 million


Special Topic Page

The ACA and Medicaid Expansion Waivers

A handful of states have obtained or are seeking waivers to implement the Medicaid expansion in ways that extend beyond the flexibility provided by the ACA. Here are key resources that examine these waivers.

The Henry J. Kaiser Family Foundation Headquarters: 2400 Sand Hill Road, Menlo Park, CA 94025 | Phone 650-854-9400
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Filling the need for trusted information on national health issues, the Kaiser Family Foundation is a nonprofit organization based in Menlo Park, California.