According to the National Association of Insurance Commisioners (NAIC) the following are the top 10 Health Insurance Companies:
1. United Healthcare
2. Wellpoint Inc. Group (Blue Cross and Blue Shield Association serving members in California, Colorado, Connecticut, Georgia, Indiana, Kentucky, Maine, Missouri, Nevada, New Hampshire, New York, Ohio, Virginia and Wisconsin)
3. Kaiser Foundation
4. Aetna Group
5. Humana
6. HCSC (Blue Cross and Blue Shield of Texas, New Mexico, Illinois, Oklahoma)
7. Coventry Corp. Group (although they were purchased by Aetna)
8. Highmark Group (Blue Cross Blue Shield of Pennsylvania and other companies)
9. Independence Group
10. Blue Shield of California
1. United Healthcare
2. Wellpoint Inc. Group (Blue Cross and Blue Shield Association serving members in California, Colorado, Connecticut, Georgia, Indiana, Kentucky, Maine, Missouri, Nevada, New Hampshire, New York, Ohio, Virginia and Wisconsin)
3. Kaiser Foundation
4. Aetna Group
5. Humana
6. HCSC (Blue Cross and Blue Shield of Texas, New Mexico, Illinois, Oklahoma)
7. Coventry Corp. Group (although they were purchased by Aetna)
8. Highmark Group (Blue Cross Blue Shield of Pennsylvania and other companies)
9. Independence Group
10. Blue Shield of California