AETNA HMO, PPO, EPO (effective 12/01/04)
AMOENA USA CORPORATION
AMVI-PROSPECT MEDICAL GROUP
ARTA HEALTH NETWORK
BLUE SHIELD OF CALIFORNIA
CALIFORNIA CHILDREN’S SERVICES
CARE AMERICA
CHOC HEALTH ALLIANCE
CHAMPUS Tri-West
CHILDREN’S PHYSICIAN MED GRP
CHILDREN’S HOSPITAL OF SAN DIEGO
CMS
COMMUNITY HEALTH GROUP
DEPARTMENT OF LABOR (ACS)
ENCOMPASS MEDICAL GROUP
FIRST HEALTH/CCN
GENTIVA CARE CENTRIX
GRAYBILL MEDICAL GROUP
GREAT AMERICAN HEALTH PLAN
GREAT WEST HEALTHCARE
HEALTHCARE PARTNERS
HEALTH NET
H.H.C. GROUP
IMPERIAL VALLEY FAMILY CARE MED GROUP
IMPERIAL COUNTY PHYSICIANS MEDICAL GROUP
INDIAN HEALTH COUNCIL
KAISER
MANAGED CARE STRATEGIES
MEDICARE
MEDI-CAL
MEDICAL PATHWAYS (MULTIPLE IPA GROUPS)
MERCY PHYSICIAN’S MEDICAL GROUP
MEMORIAL HEALTH SERVICES
MID-COUNTY PHYSICIAN’S MEDICAL GROUP
MISSION HOSPITAL IPA
MODERN MEDICAL (WORKER'S COMP)
MOLINA
MONARCH HEALTH CARE
MSC (WORKER’S COMP)
MSI
MULTI-CULTURAL PRIMARY CARE MEDICAL GROUP
MULTI-PLAN
NOBEL SELECT/AMA
NORTH COUNTY HEALTH NETWORK
ONE CARE
ORANGE COUNTY FOUNDATION
ORANGE COUNTY REGIONAL CENTER
ORANGE COUNTY PHYSICIAN’S IPA GROUP
PACIFICARE/SECURE HORIZONS
PACIFICARE MEDICARE CHOICE
PACIFIC FOUNDATION
PALOMAR POMERADO HEALTH SYSTEM
PARK TERRACE MEDICAL GROUP
PREFERRED HEALTH NETWORK
PRIMARY CARE ASSOCIATES MEDICAL GROUP
PRIME HEALTH SERVICES
PROGRESSIVE MEDICAL
PROSPECT MEDICAL
SAN DIEGO IPA
SAN DIEGO PHYSICIANS MEDICAL GROUP
SAN DIEGO REGIONAL CENTER
SCHALLER ANDERSON OF CALIFORNIA
SCRIPPS CLINIC
SCRIPPS HEALTH
SHARP COMMUNITY MEDICAL GROUP
SHARP HEALTH PLAN 
SHARP MISSION PARK MEDICAL GROUP
SHARP REES-STEALY
SOUTH COAST MEDICAL CENTER EMPLOYEE BENEFIT PLAN
STHAP/SJHMG
ST JOSEPH AFFILIATED PHYSICIANS
TECH HEALTH
TRI-CITY MEDICAL CENTER
TRI-CITY IPA
UCI
UCSD HEALTH NETWORK
UCSD MEDICAL CENTER & THORNTON HOSPITAL
UNITED HEALTH CARE (MULTIPLAN SERVICES)
UNITED MEDICAL EQUIPTMENT (WORKER’S COMP)
UNIVERSALCARE
UP/&UP HEALTH SERVICES
VA
VANTAGE MEDICAL GROUP