BLUE CROSS OF CALIFORNIA $62.64B 12,438,840 25,462 25,462 21.1% KAISER FOUNDATION HEALTH PLAN INC $33.58B 4,700,625 10,361 10,361 11.3% UNITEDHEALTHCARE INSURANCE COMPANY $25.71B 13,534,180 13,221 13,221 8.7% CIGNA HEALTH AND LIFE INSURANCE COMPANY $22.16B 10,838,103 13,857 13,857 7.5% AETNA LIFE INSURANCE COMPANY $18.60B 9,805,243 7,534 7,534 6.3% METROPOLITAN LIFE INSURANCE COMPANY $16.26B 61,141,069 18,510 18,510 5.5% ANTHEM LIFE INSURANCE COMPANY $8.78B 5,119,820 5,926 5,926 3.0% UNITED HEALTHCARE INSURANCE COMPANY $6.30B 2,829,105 2,784 2,784 2.1% UNUM LIFE INSURANCE COMPANY OF AMERICA $6.16B 16,174,421 16,628 16,628 2.1% HARTFORD LIFE AND ACCIDENT $5.96B 19,977,756 7,937 7,937 2.0% DELTA DENTAL OF CALIFORNIA $5.54B 14,699,558 14,084 14,084 1.9% LIFE INSURANCE COMPANY OF NORTH AMERICA $5.50B 25,797,487 11,147 11,147 1.9% PRUDENTIAL INSURANCE COMPANY OF AMERICA $5.37B 18,208,138 3,693 3,693 1.8% THE LINCOLN NATIONAL LIFE INSURANCE COMPANY $5.23B 16,395,225 11,671 11,671 1.8% THE GUARDIAN LIFE INSURANCE COMPANY OF AMERICA $4.31B 6,355,146 17,962 17,962 1.5% CALIFORNIA PHYSICIANS SERVICE $3.24B 453,345 1,086 1,086 1.1% SUN LIFE ASSURANCE COMPANY OF CANADA $2.98B 4,570,035 7,444 7,444 1.0% VISION SERVICE PLAN $2.65B 22,565,133 16,455 16,455 0.89% SECURIAN LIFE INSURANCE COMPANY $2.60B 10,372,344 587 587 0.88% UNITED OF OMAHA LIFE INSURANCE COMPANY $2.26B 6,522,510 13,394 13,394 0.76% PRIORITY HEALTH $2.15B 427,864 471 471 0.73% RELIASTAR LIFE INSURANCE COMPANY $2.08B 6,534,778 2,360 2,360 0.70% STANDARD INSURANCE COMPANY $1.93B 4,781,250 4,863 4,863 0.65% RELIANCE STANDARD LIFE INSURANCE COMPANY $1.87B 7,406,207 5,224 5,224 0.63% COMMUNITY CARE $1.59B 47,914 128 128 0.54%