Big payers ranked by Medicare Advantage membership

UnitedHealthcare has the most Medicare Advantage members among large payers, while MA makes up a relatively small slice of Cigna's business. 

Companies reported their Medicare Advantage numbers at the end of 2022 in earnings reports. Here's how the largest health insurers compared: 

1. UnitedHealthcare
   MA membership: 7,105,000 
   
   

2. Humana 
   MA membership: 5,130,700 
   
   

3. CVS Health 
   MA membership: 3,270,000
   
   

4. Elevance Health
   MA membership: 1,977,000 
   
   

5. Centene* 
   MA membership: 1,511,100
   *includes supplement plans
   
   

6. Cigna
   MA membership: 529,000