UnitedHealthcare, Aetna Dominate as EGWP Market Grows

Enrollment in Employer Group Waiver Plans (EGWPs) grew 19.5% from 2018 to 2021, at an average rate of about 6% per year, according to the August 2021 update to AIS’s Directory of Health Plans. About 18% of all Medicare Advantage members are enrolled in an EGWP, with UnitedHealthcare, CVS Health Corp.-owned Aetna and Kaiser Permanente leading the market. Overall, the top 10 payers have an iron grip on market share, enrolling 92.7% of all EGWP members.

© 2025 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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