Private Health Insurance: Market Concentration Generally Increased From 2011 Through 2022

On November 14, 2024, the U.S. Government Accountability Office (GAO) published this report on private health insurance that found that market concentration generally increased from 2011 through 2022. The report found that each of the three types of health insurance markets were concentrated from 2011 through 2020—the large-group market (coverage offered by large employers), the small-group market (coverage offered by small employers), and the individual market (coverage primarily sold directly to individual consumers who lack access to group coverage . . .