A
AARP
Aetna
Anthem Blue Cross Blue Shield
Anthem Blue Cross and Blue Shield of Colorado
Anthem Blue Cross and Blue Shield of Connecticut
Anthem Blue Cross and Blue Shield of Indiana
Anthem Blue Cross Blue Shield of Kentucky
Anthem Blue Cross and Blue Shield of Nevada
Anthem Blue Cross and Blue Shield of Virginia
Anthem Blue Cross and Blue Shield of Maine
Arkansas Blue Cross and Blue Shield
Assurant (previously Fortis)
American Security Life
Amerihealth *
Anthem Blue Cross and Blue Shield of Ohio
Asuris NorthWest Health
Advantra
Altius Health Plans
Atlantis Health Plan
Avmed Health Plan
AultCare
Alameda Alliance for Health
American Community Mutual Insurance Company
American Republic Insurance Company
American Specialty Health
Arcadian Health Plan
B
Bankers Fidelity Life Insurance Co.
Blue Cross and Blue Shield of Minnesota
Blue Cross Blue Shield of Florida
Blue Cross Blue Shield of Illinois
Blue Cross of California
Blue Cross of Idaho
Blue Cross Blue Shield of Georgia
BlueCross BlueShield of Kansas City
Blue Cross Blue Shield of Michigan
Blue Cross Blue Shield of Missouri *
Blue Cross Blue Shield of Nebraska
Blue Cross Blue Shield of New Mexico
Blue Cross Blue Shield of South Carolina
Blue Cross Blue Shield of Tennessee
Blue Cross Blue Shield of Vermont *
Blue Shield of California
Blue Cross Blue Shield of North Carolina
Blue Cross Blue Shield of Texas
Blue Cross Blue Shield of Wisconsin
Blue Cross Blue Shield of New Jersey
Blue Cross Blue Shield of New York *
Blue Shield of Washington
Blue Cross Blue Shield of Oregon
Blue Cross Blue Shield of Illinois
Blue Cross Blue Shield of Kansas *
Blue Cross Blue Shield of Alabama *
Blue Cross Blue Shield of Arizona *
Blue Cross of Massachusetts *
Blue Cross of North Eastern PA *
Blue Cross Blue Shield of Hawaii
BlueGrass Family Health
Blue Cross Blue Shield of New York
BadgerCare Plus
C
CareFirst Blue Cross Blue Shield
Celtic Insurance Company
CHA Health
Clarendon National Insurance Company
Cole Vision
CPIC Life
CNA/Highway to Health
Capital Blue Cross *
CIGNA *
CIGNA of Arizona
Connecticut General Life Insurance Company
Community Health Plan *
Companion HealthCare
Centene Corp
CoverTN
Cover Florida
D
Destiny Health Plan *
Dean Health Plan
E
Empire Blue Cross Blue Shield of NY
Excellus Blue Cross Blue Shield of Rochester *

F
Fortis Health (now Assurant)
Fallon Health Plan *
FirstCare
Family Health Plus
FiServ Health
Fairmont Specialty Group
G
Geisinger Health Plan
Golden Rule
Group Health Cooperative
Group Health Incorporated
Guardian Vista Health of South Florida
Guardian/Health Net
Great West HealthCare
H
Health Net of California
Health Net of Arizona
Health Net of Oregon
Health Plan of Nevada
HealthPartners
HIP
Horizon Blue Cross Blue Shield
Humana
Harvard Pilgrim *
Healthspring *
Health Alliance Plan of Michigan *
Hawaii Pacific Health
Health First Health Plan
HealthFirst of New York
HTH (International)
Hawk-I
Healthy Indiana Plan
I
Independence Blue Cross Blue Shield *
Intermountain Health Plan
International Medical Group (International)
International SOS (International)
I Can Benefits
Insure Oklahoma
J
John Alden (A Fortis Health Co.)
John Deere Health Care
K
Kaiser Permanente of California
Kaiser Permanente of Colorado
Kaiser Permanente of Georgia
Kaiser Permanente of Oregon
Kaiser Permanente of Ohio
Kaiser Permanente of the Mid- Atlantic States, Inc.
Keystone Blue Cross Blue Shield *
Kanawha Insurance Company*
KPS Health Plan
L
LifeWise Health Plan of Oregon
LifeWise of Arizona
Lifewise of Washington
Lovelace health Plan
M
Medica
Medical Mutual of Ohio
Midwest Security
Monumental Life
MEGA Health *
Mountain State Blue Cross Blue Shield *
MAMSI
Molina HealthCare
MVP Health Plans
Mercy Health Plan
Medex (International)
MinnesotaCare
N
Nationwide Health Plans
New York Life
National Health Insurance Company
Neighborhood Health Plan
O
Oxford Health Plans
Optimum Choice
Optima Health
ODS Alaska
ODS Health Plan of Oregon
P
PacifiCare of California
PacifiCare of Colorado
PacifiCare of Arizona
PacifiCare of Oregon
PacifiCare of Nevada
PacifiCare of Oklahoma
PacifiCare Vision
Preferred One
Principal Life Insurance Company
Premera Blue Cross of Washington *
Premera Blue Cross Blue Shield of Alaska *
Providence Health Plan
PacificSource Health Plan
PrudentChoice (health discount plan)
Priority Health
Q
Qualchoice *

R
Regence BlueShield
Regence BC/BS of Oregon
Rocky Mountain Health Plan *
S
Security Life Insurance Co. of America
Sierra Health Plans *
SCAN Health Plans
SelectHealth
SummaCare
State Farm Health
T
Torchmark *
Tufts Health Plan *
Tufts Secure Horizons *
Time Insurance
TrustMark Insurance Company
U
UNICARE Life & Health Company
United Wisc. Life Ins./Am. Medical Sec.
Univera *
United Health Care Group *
UCare *
United American Insurance Company *
UPMC Health Plan *
Unity Health Plan
Unison Health Plan
V
Vista Health Plan
VIVA Health
W
Washington Basic Health Plan
Wellmark Blue Cross Blue Shield of Iowa *
Wellmark Blue Cross Blue Shield of South Dakota *
Wellpoint Inc.
World Insurance Company
WellChoice
Wellpath Select