Largest U.S. Health Insurance Companies

National Association of Insurance Commissioners Report, 2008

The list includes all of the insurance companies that write 0.1% or more of the total amount of U.S. health insurance premiums. The report was published in 2008 based on premium data for 2007. In many cases the results of multiple related companies (often operating under slightly different names in different states) are combined into these results. Links are provided for those few companies that offer online enrollment for low cost health plans. The largest 125 health insurance companies collected $571 billion in premiums in 2007, representing 91% of all health insurance business.

A listing of the largest small group health insurance companies is published separately on this Web site.

Rank    Company Name    Direct Premiums     Market Share

1)  UNITEDHEALTHCARE           $66,768,805,856            11.70%

2)  WELLPOINT GROUP             $55,662,349,552            9.75%

3)  KAISER FOUNDATION          $43,714,204,211             7.66%

4)  HUMANA                            $21,742,098,560              3.81%

5)  AETNA                              $21,722,276,901              3.81%

6)  HCSC                                $14,857,855,067              2.60%

7)  AMERICAN FAMILY             $11,646,504,572                2.04%  

8)  HIGHMARK                        $11,448,785,798               2.01%

9)  INDEPENDENCE BLUE CROSS GROUP    $9,832,271,439 1.72%

10) CIGNA                          $9,640,824,750                    1.69%

11)  BLUE CROSS BLUE SHIELD OF MICHIGAN    $8,413,400,052   1.47%

12)  BLUE SHIELD OF CALIFORNIA    $8,289,423,081           1.45%

13)  COVENTRY                     $8,148,941,067                 1.43%

14) HEALTH NET OF CALIFORNIA    $7,766,165,017          1.36%

15)  BLUE CROSS BLUE SHIELD OF FLORIDA   $7,431,287,013    1.30%

16)  BLUE CROSS BLUE SHIELD OF NEW JERSEY   $6,982,886,950    1.22%

17)  BLUE CROSS BLUE SHIELD OF MASSACHUSETTS    $6,729,300,431    1.18%

18)  AMERICAN INTL GROUP      $6,374,096,115                  1.12%

19)  REGENCE                          $6,073,719,594                  1.06%

20)  CAREFIRST INC                  $5,697,179,139                   1.00%

21)  HEALTH NET INC               $5,524,441,477                   0.97%

22)  HIP INSURANCE                $5,268,420,290                   0.92%

23)  UNUMPROVIDENT CORP    $5,264,412,359                    0.92%

24)  LIFETIME HEALTHCARE     $5,196,428,250                    0.91%

25)  METROPOLITAN              $5,104,763,931                   0.89%

26)  WELLCARE                      $5,015,798,561                    0.88%

27)  BLUE CROSS BLUE SHIELD OF NORTH CAROLINA   $4,428,941,131    0.78%

28)  BLUE CROSS BLUE SHIELD OF MINNESOTA   $3,533,783,002      0.62%

29)  BLUE CROSS BLUE SHIELD OF ALABAMA   $3,499,015,273     0.61%

30)  UNIVERSAL AMERICAN FINANCIAL CORP   $3,466,908,168 0.61%

31)  GUARDIAN LIFE                $3,461,668,291                     0.61%

32)  AMERIGROUP                   $3,200,873,619                     0.56%

33)  PREMERA BLUE CROSS      $3,090,401,500                     0.54%

34)  ASSURANT INC                $3,029,265,356                     0.53%

35)  DENTEGRA                      $3,025,523,525                     0.53%

36)  PRINCIPAL FINANCIAL      $2,948,485,524                      0.52%

37)  WELLMARK INC               $2,934,262,060                      0.51%

38)  HARTFORD FIRE & CASUALTY   $2,813,131,881              0.49%

39)  BLUE CROSS BLUE SHIELD OF TENNESSEE   $2,710,435,433    0.47%

40) GHI SERVICE                   $2,686,603,306                       0.47%

41)  CENTENE CORP              $2,593,454,069                       0.45%

42)  HARVARD COMMONWEALTH HEALTH PLAN   $2,494,008,436   0.44%

43)  ALLINA HEALTH              $2,398,793,949                      0.42%

44)  GROUP HEALTH COOPERATIVE   $2,373,512,344            0.42%

45)  BLUE CROSS BLUE SHIELD OF SOUTH CAROLINA   $2,352,370,633      0.41%

46)  MEDICAL MUTUAL OF OHIO   $2,337,567,272                 0.41%

47)  AON CORP                      $2,251,837,256                     0.39%

48)  UPMC HEALTH SYSTEM    $2,224,116,018                     0.39%

49)  HEALTH NOW NEW YORK INC   $2,139,608,922             0.37%

50)  CONSECO                        $2,110,036,130                    0.37%

51)  MOLINA HEALTHCARE INC   $2,076,184,820                  0.36%

52)  TUFTS ASSOCIATES HMO INC   $2,007,104,682             0.35%

53)  GENWORTH FINANCIAL     $1,999,596,013                    0.35%

54)  LOUISIANA HEALTH SERVICES    $1,951,880,506           0.34%

55)  MUTUAL OF OMAHA         $1,942,149,934                    0.34%

56)  SIERRA HEALTH SERVICES    $1,827,104,542                0.32%

57)  CAPITAL BLUE CROSS          $1,763,007,205                 0.31%

58)  BLUE CROSS BLUE SHIELD OF RHODE ISLAND   $1,753,537,656         0.31%

59)  AEGON US HOLDING          $1,745,190,929                   0.31%

60)  HENRY FORD HEALTH SYSTEM   $1,710,936,214            0.30%

61) HAWAII MEDICAL SERVICES ASSOCIATION   $1,638,907,202     0.29%

62)  AMERICAN LIFE & HEALTH   $1,610,355,267                  0.28%

63)  BLUE CROSS BLUE SHIELD OF KANSAS  $1,574,154,204  0.28%

64)  SPECTRUM HEALTH            $1,541,454,597                  0.27%

65)  CARESOURCE                    $1,501,263,368                   0.26%

66) SCAN HEALTH PLAN            $1,474,090,707                  0.26%

67)  NEWQUEST                      $1,447,186,348                   0.25%

68)  HEALTHMARKETS              $1,429,606,663                  0.25%

69)  MEDICAL CARD SYSTEM INC    $1,339,136,391             0.23%

70)  SUN LIFE ASSURANCE COMPANY    $1,325,008,383       0.23%

71)  TRIPLE-S INC                      $1,305,241,898                0.23%

72)  JOHN HANCOCK                  $1,300,743,549                0.23%

73)  STANCORP FINANCIAL         $1,294,581,533                0.23%

74)  BLUE CROSS BLUE SHIELD OF KENTUCKY    $1,279,669,654     0.22%

75)  BLUE CROSS BLUE SHIELD OF ARIZONA   $1,272,704,233        0.22%

76)  ARKANSAS BLUE CROSS BLUE SHIELD    $1,255,556,887       0.22%

77)  LIBERTY NATIONAL             $1,246,407,196                0.22%

78)  GREAT WEST                     $1,177,218,366                 0.21%

79)  MISSISSIPPI INSURANCE       $1,124,831,289                0.20%

80)  BLUE CROSS BLUE SHIELD OF NEBRASKA     $1,095,487,288         0.19%

81)  MMM HEALTHCARE INC         $1,084,601,054                0.19%

82)  PRESBYTERIAN HEALTHCARE SERVICES    $1,070,884,028    0.19%

83)  INDEPENDENT HEALTH ASSOCIATION   $1,060,899,296     0.19%

84)  STATE FARM                      $1,035,025,475                    0.18%

85)  UCARE                              $1,016,691,216                     0.18%

86)  PREFERRED CARE               $1,011,167,577                     0.18%

87)  MVP                                 $1,008,391,821                     0.18%

88)  NORTHWESTERN MUTUAL    $1,001,393,111                   0.18%

89)  LINCOLN NATIONAL             $989,397,178                      0.17%

90)  BLUE CROSS OF IDAHO HEALTH SERVICES INC   $975,494,234      0.17%

91)  AVMED INC                        $963,282,696                       0.17%

92)  PRUDENTIAL OF AMERICA    $943,831,494                       0.17%

93)  THREE RIVERS HOLDINGS    $942,216,296                       0.17%

94)  IHC HEALTH PLANS             $927,132,118                      0.16%

95)  VISION SERVICE PLAN         $909,179,443                      0.16%

96)  WEA INC                           $903,734,999                      0.16%

97)  FALLON COMM HEALTH PLAN INC   $890,389,152            0.16%

98)  CAPITAL DISTRICT PHYSICIANS HEALTH PLAN    $888,147,271    0.16%

99)  SENTARA HEALTH MGMT    $881,192,233                       0.15%

100)  GEISINGER INSURANCE     $852,980,145                       0.15%

101)  UNIVERSAL HEALTH CARE    $851,905,888                    0.15%

102)  HEALTH PARTNERS OF PHILADELPHIA INC    $843,213,879      0.15%

103)  PROVIDENCE HEALTH PLAN      $813,079,533                 0.14%

104)  CARLE CLINIC ASSOCIATION     $812,220,180                 0.14%

105)  NORIDIAN MUTUAL INSURANCE COMPANY    $793,409,429    0.14%

106)  DEAN HEALTH                  $785,847,813                        0.14%

107)  HOSPITAL SERVICES ASSOCIATION OF NEPA     $754,748,773       0.13%

108)  UNIVERSITY HEALTH CARE INC    $745,769,830              0.13%

109)  MANAGED HEALTH INC      $741,080,412                       0.13%

110)  ARDENT HEALTH SERVICES   $717,701,940                    0.13%

111)  VISION SERVICE PLAN          $683,068,852                    0.12%

112)  NEIGHBORHOOD HEALTH PLAN INC   $671,329,200         0.12%

113)  AMERICAN FINANCIAL           $667,628,607                    0.12%

114)  HCC INS HOLDINGS               $665,757,767                   0.12%

115)  CNA INS                              $648,001,475                   0.11%

116)  XLHEALTH                           $629,005,097                   0.11%

117)  SECURITY HEALTH PLAN OF WISCONSIN INC   $604,611,212       0.11%

118)  M PLAN INC                          $603,672,685                  0.11%

119)  RENAISSANCE HEALTH SERVICES CORP     $603,123,993     0.11%

120)  HEALTHPLUS OF MICHIGAN     $594,307,150                 0.10%

121)  VANGUARD HEALTH VENTURES     $592,374,096           0.10%

122)  COMMUNITYCARE                   $588,042,275                0.10%

123)  DELPHI FINANCIAL                  $584,350,126                0.10%

124)  AMERICAN FIDELITY CORP       $584,147,563                0.10%

125)  PHP                                      $578,166,318                0.10%

by Tony Novak, revised 11/6/2009