Market share of top U.S. health insurance companies 2023

As of 2023, UnitedHealth Group had a share of 15 percent in the U.S. health insurance market. Elevance health (Anthem) had the second-largest health insurance market share, covering ten percent of the market. The top five largest insurance companies represented around 50 percent of the total U.S. market share in the health insurance industry.

Health insurance market in the U.S.

The United States does not have a universal healthcare system for its citizens. In the U.S. most individuals depend on employer-sponsored health coverage for their healthcare needs. Private health insurance dominates the market as it provides group and non-group policies. Public health insurance offers coverage under federal programs, Medicare and Medicaid/CHIP are the most popular ones. The U.S. health insurance industry has witnessed significant changes in the last decade, with increased spending by private insurance, expanded coverage through the ACA, and a growing Medicare Advantage market.

Medicare Advantage market

Medicare Advantage plans give Medicare beneficiaries the option of receiving benefits from private plans rather than from the traditional Medicare program. UnitedHealthcare, part of UnitedHealth Group, is the largest U.S. health insurance company by total membership. In 2023, Medicare Advantage provided coverage to 31 million Americans, among which some 8.9 million Medicare Advantage (MA) beneficiaries were enrolled in a plan from the UnitedHealth Group Inc.