Aetna EPO/HMO/POS/PPO
Aetna Medicare
Aetna National Advantage
Aetna Signature
Blue Choice Solutions
BCBS PAR Traditional Member
BCBS PPO/POS
Beech Street PPO
Beech Street Work Comp
Blue Bell Benefit Trust EPO
Blue Cross Blue Shield Medicare Advantage
Caring Physicians Network PPO
Centra Benefit Services PPO
Cigna Flex/HMO/PPO/POS
Coastal Comp Health Network PPO - Work Comp
Community Health Choice
Community Health Choice Perinate Chip and Chip 
Competitive Health Plan
Corvel PPO
CorVel PPO - Work Comp
Coventry Companies
Coventry Medicare Advantage PPO Advantra
Department of Assistive & Rehabilitative Services (fka TX Rehab Commission) 
Evercare of Texas Medicare HMO
Evercare of Texas Medicaid HMO
Evolutions Healthcare Systems 
Galaxy Health Network PPO
Great-West Healthcare HMO/POS/PPO
Health Scope Tenet EE
HealthSmart/HPO Wrap
HealthSmart/Interplan Direct
HealthSmart WC
HealthSmart Preferred Care PPO
Health Management Network PPO
Houston Independent Medical Systems PPO
Houston Industries PPO
HMO Blue Texas
Humana HMO/PPO, Choice Care
Humana Medicare PPO
Humana Military Healthcare Services (TRICARE)
Kindred Hospital Houston NW
Managed HealthCare EPO/WC
Medical Savings Health Insurance Company
Multi Plan PPO
Multi Plan Work Comp
Natioanl Assoc. of Preferred Providers PPO
National Choice Care PPO/WC
National Healthcare Alliance PPO
National Preferred Provider Network WC
National Provider Network - PPO
Newton Healthcare Network PPO
Occ Med Emp Direct
Occupational Health Networks of TX OCCUNET - Work Comp
Odyssey Hospice
Private HealthCare Systems EPO/POS/PPO
PHCS Savility
Prime Health SVS - Medicare Advantage PPO
Prime Health SVS PPO/WC
Provider Strategies PPO
Secure Horizons Managed Medicare
SelectCare of Texas Managed Medicare
Texas Children's Health Plan HMO
Texas Children's Health Plan STAR (Medicaid)
Texas Children's Health Plan CHIP
Texas Healthcare Foundation - Work Comp
Texas HealthSpring HMO (Medicare + Choice)
Texas Integrated Health Network PPO
Three Rives
TMHP
Unicare Health Plan HMO
Unicare Health Plan PPO
United Healthcare Options and Nonoptions
USA Managed Care PPO/WC
USC Health Services PPO
UTMB Health Plan CHIP
UTMB HMO
Vitas Hospice