BLUE CROSS OF CALIFORNIA $61.84B 12,334,042 25,123 25,123 21.1% KAISER FOUNDATION HEALTH PLAN INC $33.20B 4,685,068 10,186 10,186 11.3% UNITEDHEALTHCARE INSURANCE COMPANY $25.14B 13,069,295 13,007 13,007 8.6% CIGNA HEALTH AND LIFE INSURANCE COMPANY $21.21B 10,963,236 13,514 13,514 7.2% AETNA LIFE INSURANCE COMPANY $19.27B 9,963,970 7,668 7,668 6.6% METROPOLITAN LIFE INSURANCE COMPANY $16.08B 60,612,525 18,173 18,173 5.5% ANTHEM LIFE INSURANCE COMPANY $8.64B 5,143,015 6,019 6,019 3.0% UNITED HEALTHCARE INSURANCE COMPANY $6.32B 2,499,054 2,799 2,799 2.2% UNUM LIFE INSURANCE COMPANY OF AMERICA $6.04B 14,921,368 16,327 16,327 2.1% HARTFORD LIFE AND ACCIDENT $5.92B 19,997,975 7,889 7,889 2.0% DELTA DENTAL OF CALIFORNIA $5.47B 14,245,523 13,765 13,765 1.9% LIFE INSURANCE COMPANY OF NORTH AMERICA $5.34B 25,338,487 11,210 11,210 1.8% PRUDENTIAL INSURANCE COMPANY OF AMERICA $5.19B 17,865,622 3,583 3,583 1.8% THE LINCOLN NATIONAL LIFE INSURANCE COMPANY $5.17B 16,725,086 11,569 11,569 1.8% THE GUARDIAN LIFE INSURANCE COMPANY OF AMERICA $4.15B 6,203,332 17,553 17,553 1.4% CALIFORNIA PHYSICIANS SERVICE $3.06B 442,444 1,072 1,072 1.0% SUN LIFE ASSURANCE COMPANY OF CANADA $2.79B 4,445,381 7,333 7,333 0.95% SECURIAN LIFE INSURANCE COMPANY $2.62B 10,189,839 582 582 0.89% VISION SERVICE PLAN $2.61B 22,381,954 16,297 16,297 0.89% UNITED OF OMAHA LIFE INSURANCE COMPANY $2.15B 12,581,636 12,983 12,983 0.73% PRIORITY HEALTH $2.15B 434,001 488 488 0.73% RELIASTAR LIFE INSURANCE COMPANY $2.09B 6,491,306 2,338 2,338 0.71% STANDARD INSURANCE COMPANY $1.89B 4,779,152 5,069 5,069 0.65% RELIANCE STANDARD LIFE INSURANCE COMPANY $1.78B 7,174,008 5,089 5,089 0.61% COMMUNITY CARE $1.60B 47,277 128 128 0.54%