Top payers by incurred claims 

Kaiser Permanente Health Plans was the largest payer by total incurred claims in 2020, according to data firm Definitive Healthcare. 

Definitive Healthcare tracks metrics on over 1,200 payer and payer subsidiary organizations. 

Here are the largest healthcare insurance companies by total incurred claims, followed by total incurred claims in 2020. 

1. Kaiser Permanente Health Plans: $48,190,589,886
2. Anthem Blue Cross & Blue Shield: $30,985,209,365
3. UnitedHealthcare: $30,958,353,507
4. Health Care Service Corp. Group: $27,089,269,607
5. Florida Blue: $13,889,381,085
6. Centene Corp.: $13,418,778,596
7. Blue Shield of California: $12,195,926,108
8. Aetna: $11,754,508,700
9. Cigna: $11,628,634,678
10. CareFirst BlueCross BlueShield: $7,195,025,341
11. BlueCross BlueShield of Michigan Group: $6,395,661,082
12.  Highmark: $6,063,926,192
13. BlueCross BlueShield of NC Group: $6,031,728,568
14. BlueCross BlueShield of Massachusetts Group: $5,218,911,620
15. Horizon Blue Cross Blue Shield of New Jersey: $5,096,699,541
16. BlueCross BlueShield of Alabama: $4,640,722,164
17. Humana Group: $4,239,355,565
18.  Independence Blue Cross Group: $3,767,306,513
19.  EmblemHealth: $3,379,255,409
20.  Regence: $3,330,774,479