2023 Year in Review: Top Medicare Advantage Payers by Enrollment

Nearly 32 million people were enrolled in Medicare Advantage plans as of December 2023, up from about 29.5 million in December 2022, according to AIS’s Directory of Health Plans. And while the six national carriers led by UnitedHealthcare currently enroll 69.8% of the market, regional Blues affiliates, provider-sponsored payers and other locally focused insurers have largely continued to grow alongside them. Tech-enabled startup insurers, meanwhile, saw some of the most explosive gains — and losses — in 2023. See the year-end enrollment wrap-up in the graphics below.

© 2024 MMIT
Carina Belles

Carina Belles

Carina has been covering public-sector health care since 2018. As a data reporter for Radar on Medicare Advantage, she creates infographics and data stories on issues impacting Medicare, Medicaid and Part D. She also develops AIS Health Daily, a free daily newsletter that showcases AIS’s strong reporting across our four publications and parent company Norstella’s suite of market access and data solutions. Prior to joining the editorial team, she managed Medicare and Medicaid data for the Directory of Health Plans, AIS’s industry-standard health coverage database. She graduated from Ohio University with a B.S. in Journalism.

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