While UnitedHealthcare dominated 2021 in terms of revenue among health insurers, it's a tight financial race between many of the country's other top payers.
Here are the top 6 payers based on year-end revenue:
1. UnitedHealthcare: $223 billion
2. Cigna: $174.1 billion
3. Anthem: $137 billion*
4. Centene: $126 billion
5. Humana: $83.1 billion
6. Aetna: $82.2 billion
*Operating revenue