AARP Medicare Complete
AARP United HealthCare
Aetna
Aetna ASA Assurant Health (PPO)
Aetna Coventry
AFLAC
Amalgamated Life Insurance Co.
Ameriben Solutions
American Continental Insurance Co
American Postal Workers Union Health Plan
American Republic Insurance
American Slovenian Catholic Union
AmeriHealth Administrators
AmTrust North America
ASI
Bailey International WC
Bankers Life and Casualty Co
Blue Cross Blue Shield Illinois (BCBS IL)
Blue Cross Blue Shield Missouri (Anthem BCBS MO)
CHAMPVA-HAC
Christian Brothers Services
CIGNA
CIGNA – PPO
CIGNA Health Plan – HMO
Cigna Medicare Supplement Plan F
Colonial Penn Life Ins Co
Combined Insurance Co of America
Companion Life
Conseco Health Insurance Co
Constitution Life Insurance Co
Continental Indemnity Insurance
Country Life Insurance Company
DMERC Region B
DMERC Region D
Egyptian Area Schools
EQUITABLE LIFE AND CASUALTY
ESSENCE HEALTHCARE
Evercare Star Plus
First Health Network
FMH Benefit Services
Forethought Life Insurance Company

Gallagher Bassett WC
GEHA
Gerber Life Insurance Company
GHP (Group Health Plan)
GMP Employers Retiree Trust
Golden Rule Insurance
Group and Pension Administrators
HCC Life Insurance
Health Alliance Medical Plans
Health Design Plus
Healthcare USA
Healthlink HMO
Healthlink PPO
HealthSCOPE Benefits INC
Helmsman Management Services Inc
HFN Inc.
Home State Health Plan
Humana Claims only
IBEW Local 150 Welfare Fund
Indiana State Council of Roofers
Land of Lincoln Health
Loyal American Life (Medicare Supplement)
Machinist District 9 Welfare
Madison County Safety Risk Mgmt
MEDICA
Medicaid Missouri
Medicare Part B Illinois
Medicare Part B Missouri
Medicare Railroad (MetraHealth)
Medico Insurance Company
MediPlus
Meritain Health Agency Services
Mid-West National Life Insurance Co. of Tennessee
Monumental Life Ins Co.
MultiPlan GEHA
Mutual Omaha Insurance
National Sprinkler Industry Welfare
NEA Group Insurance Program
North American Insurance Company
Operating Engineers Local 12
Operating Engineers Local 513 HWF
Operating Engineers Local 520 HWF
Operating Engineers Local 965

Oxford (UnitedHealthcare/Oxford)
Oxford Health Plans
Pekin Life Insurance Company
Penn Treaty Network America
Pennsylvania Life Insurance
PHCS GEHA
Physicians Health Association of Illinois
Physicians Life
Physicians Mutual
Plumbers and Pipefitters Welfare
Principal Life Insurance Company
Quality Benefits LLC
Quicktrip Corporation
Reserve National Insurance
Rural Carrier Benefit Plan
SecureHorizons Medicare Complete
Standard Life & Accident Insurance Co
State Farm Group Medical & Ind Health Ins Co
Stonebridge Life
Student Resources (UHC)
Team Industrial Services WC
Teamsters Medicare Trust
TransAmerica Life Insurance
Travelers
Tricare (nationwide)
Tricare for Life (All Regions 1-12)
TriEast – Tricare Prime/Tricare Select
Tristar WC
VA Community Care Network VACCN (UHC Military and Veterans)
Trustmark (Starmark & TMA)
UHC Group Medicare Advantage
UMR Wausau / UHIS
Unicare Life and Health Insurance
Union Pacific Railroad Employees Health Systems
United American
United Healthcare
United National Life
US Deptartment of Labor
USAA Life Insurance Company
VA Medical
Wabash Memorial Hospital Association
Wellcare HMO Inc.
WSM Inc Work Comp