CIGNA HEALTH (PPO, HMO)
HEALTHNET (PPO)
PACIFIC CARE (PPO)
CAL OPTIMA
PROSPECT MEDICAL GROUP
NOBLE OC FOUNDATION FOR MEDICAL CARE (PPO/EPO)
BLUE CROSS OF CALIFORNIA [Prudent Buyer] (HMO, POS)
SENIOR SECURE BLUE SHIELD OF CALIFORNIA (PPO, POS, HMO)
SELECT GUARDIAN (PPO)
AETNA U.S. HEALTHCARE (PPO,HMO)
IRVINE UNIFIED SCHOOL DISTRICT (PPO, CCN, PPO)
UNITED FOOD & COMMERCIAL WORKERS UNION [Prudent Buyer]
MEDICARE, MEDICARE RAILROAD CARRIER
OPERATING ENGINEERS HEALTH & WELFARE FUND (PPO)
UNITED HEALTHCARE (PPO, POS)
INDEMNITY FIRST HEALTH
MEDI-CAL