* Group Business: Health insurance in which a certificate of coverage may be given to employers, associations, trusts, or other organizations that cover their employees or members and/or their families.
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Market share of leading U.S. health insurance companies for Medicare in 2024
In 2024, the Medicare health insurance market for the group business was dominated by the **Â with over half of the Medicare insurance market. Together, the leading five health insurance groups accounted for over ** percent of the market share.
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NAIC. (September 11, 2025). Medicare leading health insurance companies for group business in the United States in 2024, by market share [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved August 06, 2026, from /statistics/1463503/market-share-of-leading-health-insurance-firms-for-medicare-us/
NAIC. "Medicare leading health insurance companies for group business in the United States in 2024, by market share." Chart. September 11, 2025. ÌÇÐÄÆÆ½â°æ. Accessed August 06, 2026. /statistics/1463503/market-share-of-leading-health-insurance-firms-for-medicare-us/
NAIC. (2025). Medicare leading health insurance companies for group business in the United States in 2024, by market share. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: August 06, 2026. /statistics/1463503/market-share-of-leading-health-insurance-firms-for-medicare-us/
NAIC. "Medicare Leading Health Insurance Companies for Group Business in The United States in 2024, by Market Share." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 11 Sep 2025, /statistics/1463503/market-share-of-leading-health-insurance-firms-for-medicare-us/
NAIC, Medicare leading health insurance companies for group business in the United States in 2024, by market share ÌÇÐÄÆÆ½â°æ, /statistics/1463503/market-share-of-leading-health-insurance-firms-for-medicare-us/ (last visited August 06, 2026)
Medicare leading health insurance companies for group business in the United States in 2024, by market share [Graph], NAIC, September 11, 2025. [Online]. Available: /statistics/1463503/market-share-of-leading-health-insurance-firms-for-medicare-us/