Top Health Insurance Companies

Best? Not necessarily. But these health insurers have the biggest market share.

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The largest 125 U.S. health insurers collected some $713 billion in 2012 premiums, the most recent annual data available. The top 25, ranked below by market share, accounted for nearly two-thirds of the total. Data were provided by the National Association of Insurance Commissioners, whose members direct the state agencies that license insurance companies. Note: Large insurers don't necessarily offer the best health insurance. Visit Best Health Insurance Plans to find the best plan for your needs.

Rank Insurer
#1 Unitedhealth Group
#2 Wellpoint Inc. Group
#3 Kaiser Foundation Group
#4 Humana Group
#5 Aetna Group
#6 HCSC Group
#7 Cigna Health Group
#8 Highmark Group
#9 Coventry Corp. Group
#10 HIP Insurance Group
#11 Independence Blue Cross Group
#12 Blue Cross Blue Shield of New Jersey Group
#13 Blue Cross Blue Shield of Michigan Group
#14 California Physicians' Service
#15 Blue Cross Blue Shield of Florida Group
#16 Health Net of California, Inc.
#17 Centene Corp. Group
#18 Carefirst Inc. Group
#19 Wellcare Group
#20 Blue Cross Blue Shield of Massachusetts Group
#21 UHC of California
#22 Lifetime Healthcare Group
#23 Cambia Health Solutions Inc.
#24 Metropolitan Group
#25 Molina Healthcare Inc. Group

 Source: National Association of Insurance Commissioners

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