The healthcare analytics company examined the average star rating for the top 15 plans by enrollment. MHH Healthcare, a San Juan, Puerto Rico-based MA insurer, had the highest average rating.
Centene had the lowest average star rating of the largest insurers, at 3.15.
According to CMS data published Oct. 10, the average Medicare Advantage star rating for 2025 is 3.92, down from 4.07 in 2024.
Humana told investors its star ratings drop could hurt 2026 earnings. The company said it believes there may be potential errors in CMS’ calculations.
UnitedHealthcare is challenging CMS’ star ratings in court. The company filed a lawsuit Sept. 30, disputing CMS’ inclusion of a secret shopper phone call in its star ratings that UnitedHealthcare said never connected.
Here’s how the largest Medicare Advantage plans stack up on average star ratings:
1. MHH Healthcare: 4.95
2. Highmark Health: 4.52
T-3. SCAN Group: 4.48
T-3. Corewell: 4.48
5. Kaiser Foundation Health Plan: 4.41
6. Healthfirst: 4.33
7. CVS Health: 4.27
8. Blue Cross Blue Shield Minnesota: 4.08
9. Blue Cross Blue Shield Michigan: 4.07
10. Cigna: 3.93
11. UnitedHealth Group: 3.82
12. Florida Blue: 3.76
13. Elevance Health: 3.73
14. Humana: 3.63
15. Centene: 3.15
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