Where UnitedHealthcare, Humana rule the Medicare Advantage market

Where UnitedHealthcare, Humana rule the Medicare Advantage market 
Modern Healthcare; by Tim Broderick; 7/22/25 
Medicare Advantage competition was meager in 97% of counties last year, where beneficiaries could choose among just a handful of dominant insurers. The health policy research institution KFF analyzed Centers for Medicare and Medicaid Services data on the plans available across the U.S. and Puerto Rico in 2024. The findings indicate that Medicare enrollees have few options in most areas. Market share was “highly concentrated” in 79% of counties and “very highly concentrated” in another 18%, KFF found, using metrics similar to those the Federal Trade Commission and the Justice Department employ to measure competitiveness. ... Ninety-three percent of Medicare-eligible people lived in “highly concentrated” or “very highly concentrated” counties. ... [Click here and scroll down for the national map with] the level of Medicare Advantage market concentration for each county and the market share for each county's top insurer.