| Company | Enrollment* |
|
UnitedHealth Group |
32,824,278 |
|
WellPoint, Inc. |
28,812,895 |
|
Aetna, Inc. |
18,140,023 |
|
Health Care Service Corporation |
12,277,678 |
|
CIGNA HealthCare, Inc. |
11,443,392 |
|
Kaiser Permanente |
8,755,013 |
|
Humana, Inc. |
8,334,800 |
|
Health Net, Inc. |
5,560,000 |
|
Blue Cross Blue Shield of Michigan |
4,338,022 |
|
Highmark, Inc. |
4,214,412 |
|
AmeriHealth Mercy/Independence Blue Cross |
3,760,448 |
|
Blue Cross and Blue Shield of Alabama |
3,483,493 |
|
CareFirst BlueCross BlueShield |
3,330,217 |
|
Coventry Health Care, Inc. |
3,286,000 |
|
BlueCross BlueShield of Tennessee |
3,117,310 |
Health insurance enrollment refers to fully insured plus self-insured medical enrollment for health insurance companies-- companies that offer fully insured products. Does not include specialty benefits (dental, etc.) Note: End of Year 2010 Data.
Source: AIS's Directory of Health Plans: 2011. Used with permission. http://aishealth.com/marketplace/aiss-directory-health-plans
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