| ABMA Medical Corp. |
| Acordia National |
| AdminaStar Illinois Medicare |
| AdminaStar Indiana Medicare |
| AdminaStar Kentucky Medicare |
| AdminaStar Ohio Medicare |
| AdminaStar Puerto Rico Medicare |
| Aetna |
| Aetna Long Term Care |
| Affordable |
| Alabama Medicaid |
| Allina Health Plans Minnesota Medica |
| ALTA Senior Care |
| Alternative Risk Management |
| Altius Health Plan |
| AMC - Alaska Electric Health & Welfare |
| AMC - American General Life & Accident |
| AMC - Health Future |
| AMC - Poly-America |
| AMC - Touchstone Health Partnership |
| American Republic Insurance Company |
| AmeriChoice of New Jersey |
| Amerihealth Mercy Health Plan/CarePartners/Passport |
| Anthem Blue Cross Blue Shield |
| APWU Health Plan |
| Arizona Medicaid |
| Arizona Physicians IPA |
| Arkansas Medicaid |
| AvMed Health Plan (South Florida) |
| BAAI |
| BC of California |
| BCBS of Alabama (Cahaba) Medicare |
| BCBS of Arizona |
| BCBS of Arizona Medicare |
| BCBS of Colorado |
| BCBS of Colorado (Anthem) |
| BCBS of Connecticut |
| BCBS of Florida |
| BCBS of Florida (First Coast) Medicare |
| BCBS of Georgia |
| BCBS of Georgia Medicare |
| BCBS of Illinois |
| BCBS of Indiana |
| BCBS of Kentucky |
| BCBS of Louisiana |
| BCBS of Maine |
| BCBS of Massachusetts |
| BCBS of Minnesota |
| BCBS of Mississippi |
| BCBS of Mississippi (Trispan) Medicare |
| BCBS of Nevada |
| BCBS of New Hampshire |
| BCBS of New Jersey (Horizon) |
| BCBS of New Mexico |
| BCBS of New York (Empire) |
| BCBS of New York (Empire) Medicare |
| BCBS of Ohio |
| BCBS of South Carolina (Palmetto) Medicare |
| BCBS of Tennessee (River Bend) Medicare |
| BCBS of Texas |
| Benefit Management Systems |
| Benefit Services of Pennsylvania |
| Better Health Plan Tennessee |
| Blue Cross of California |
| Boon-Chapman Benefit Administrators |
| Botsford Health Plan Medicaid |
| Brown & Toland |
| BS of California |
| Business Administrators & Consultants (aka BAC) |
| California (Medi-Cal) Mediciad |
| Cape Health Plan of Michigan Medicaid |
| CareFirst of Maryland Delmarva Health Plan Medicaid |
| CarePlus |
| CareSource Ohio |
| Central Valley Medical Group Medicaid |
| CHA Kentucky |
| CHAMPVA - HAC |
| CHC Carelink |
| CHC Carelink Advantra |
| CHC Carelink Medicaid |
| CHC Carenet |
| CHC Group Health Plan (GHP) |
| CHC Health America/Health Assurance of Pennsylvania (HAPA) |
| CHC of Delaware |
| CHC of Georgia |
| CHC of Health Care of USA (HCUSA) |
| CHC of Iowa |
| CHC of Kansas (Kansas City) |
| CHC of Kansas (Wichita) |
| CHC of Louisiana |
| CHC of Nebraska |
| CHC of the Carolinas/Wellpath |
| CHC Southern Health Services (SHS) |
| Children of Women Vietnam Veterans - VA HAC |
| Christian Brothers Services |
| CIGNA |
| Cigna Behavioral Health |
| Cigna Healthcare |
| Cigna Healthcare |
| Cigna Healthcare HMO |
| Cigna Healthcare PPO |
| Cimarron Health Plan - Commerical New Mexico |
| Colorado Medicaid |
| Columbia United Providers Washington |
| Community Care Medicaid |
| Connecticare |
| Connecticut General |
| Connecticut Medicaid |
| Cooperative Benefit Administrators |
| CoreSource - Arizona & Minnesota |
| CoreSource - Little Rock |
| CoreSource - Maryland, Pennsylvania & Illinois |
| CoreSource - North Carolina & Indiana |
| CoreSource Ohio |
| Corporate Benefit Services |
| Corporate Systems Administration |
| Covenant - Cariten |
| Covenant - Cariten Senior Healthcare |
| Covenant - Commerical |
| Coventry Health Care (CHC) |
| Coventry of Georgia |
| Delta Health Systems |
| Diamond Plan (MD Medicaid) |
| District of Columbia Medicaid |
| Ecom PPO - Consolidated Railroad |
| Ecom PPO - Linn County |
| Employee Benefit Services of Louisiana |
| Equicore |
| Equicore - PPO |
| Erin Group Administrators |
| Evercare (All States) |
| Fallon Community Health Plan |
| Federated Insurance Company |
| First Health |
| First Health Mail Handlers |
| FirstGuard Health Plan |
| Florida Medicaid |
| Fortis Benefits Insurance Company |
| Fortis Insurance Company |
| Georgia CHIP (Peach Care) |
| Georgia Medicaid |
| Gilsbar |
| Glasman - Director's Guild |
| Glassman - AFTRA Health Fund |
| Glassman - Best Life and Health |
| Glassman - Writer's Guild |
| Glassman Directors Guild |
| Glassman Writers Guild |
| Great Lakes Medicaid |
| Great West Life |
| Great-West Healthcare |
| Group & Pension Administrators |
| Group Health |
| Group Health Northwest |
| Harvard Pilgrim Health Plan |
| Hawaii Medicaid |
| Health 123/ Tripoint / Vanderbuilt Health Plan |
| Health Choice of Arizona |
| Health Net California |
| Health Net Medi-Cal |
| Health Net Northeast and Arizona |
| Health Net Oregon |
| Health Partners of Pennsylvania |
| Health Plan of Michigan Medicaid |
| HealthCare Inc. |
| Healthcare USA |
| Healthchoice of Memphis |
| Healthfirst of New York |
| HealthNet of California |
| Healthpartners |
| HealthSpring |
| Horizon Healthcare of New York |
| Humana |
| Humana |
| Idaho Medicaid |
| Illinois Medicaid |
| Independence Blue of Pennsylvania |
| Indiana Medicaid |
| Inland Empire Health Plan California |
| Inter Valley Health Plan California |
| Iowa Medicaid |
| J. F. Molloy & Associates |
| JMH Health Plan Florida |
| John Alden Life Insurance Company |
| John Deere Health Plan |
| John Muir Health Network |
| JP Farley |
| Kaiser Foundation Health Plan Georgia |
| Kaiser Foundation Health Plan of Colorado |
| Kaiser Foundation Health Plan of Hawaii |
| Kaiser Foundation Health Plan of Mid-Atlantic |
| Kaiser Foundation Health Plan of Northwest |
| Kaiser Foundation Health Plan of Ohio |
| Kaiser Permanente |
| Kaiser Permanente of Georgia |
| Kaiser Permanente of Northern California |
| Kaiser Permanente of Southern California |
| Kansas Medicaid |
| Kentucky Medicaid |
| Labor and Industry |
| Landmark Healthcare |
| Louisiana Medicaid |
| Lovelace Health Plan |
| MA BCBS |
| Maine Medicaid |
| MAMSI Mid Atlantic Medical Services |
| Maricopa Integrated Health System Arizona (formerly Maricopa Tobacco Tax Program) |
| Massachusetts (Mass Health) Medicaid |
| M-Care |
| MD IPA |
| Medica |
| Medical Benefits Company (MedBen) |
| Medical Mutal of Ohio |
| Medical Mutual of Ohio |
| Mega Life & Health Insurance Company |
| Memorial Care TPA California |
| Mercy Care Plan Arizona |
| MetLife |
| Metrahealth (UNET) |
| MI Child Michigan |
| Michigan Medicaid |
| Mills Penisula Medical Group |
| Minnesota Medicaid |
| Mississippi Administrative Services |
| Mississippi CHIP Medicaid |
| Mississippi Medicaid |
| Missouri Blue Choice |
| Molina California |
| Molina Healthcare of California |
| Molina Healthcare of Michigan |
| Molina Healthcare of Michigan |
| Molina Healthcare of New Mexico |
| Molina Healthcare of New Mexico Medicaid |
| Molina Healthcare of Utah |
| Molina Healthcare of Washington |
| Molina Michigan |
| Molina Utah |
| Molina Washington |
| Montana Medicaid |
| Mountain Medical Affiliates |
| Mutual of Omaha (National) |
| MVP Health Plan |
| National Association of Letter Carriers |
| Nationwide Health Plans |
| Neighborhood Health Partnership |
| Nevada Medicaid |
| New Hampshire Medicaid |
| New Jersey Medicaid |
| New Mexico Medicaid |
| New York Medicaid |
| Noridian Medicare |
| North Carolina Medicaid |
| North Dakota Medicaid |
| Nyhart Company |
| Ochsner Health Plan |
| Ohio Medicaid |
| Ohio Workman's Comp |
| Oklahoma Medicaid |
| OmniCare |
| OmniCare Health Plan of Michigan |
| Optimum Choice |
| Optimum Choice of the Carlolinas |
| Oxford Health Plan |
| Pacificare California |
| Pacificare Colorado |
| PacifiCare Health Systems |
| Pacificare of Arizona |
| Pacificare of California |
| Pacificare of Colorado |
| Pacificare of Oklahoma |
| Pacificare of Oregon |
| Pacificare of Texas |
| Pacificare of Washington |
| Pacificare Oklahoma |
| Pacificare Oregon |
| Pacificare Texas |
| Pacificare Washington |
| Partnership Health Plan of California |
| Personal Care |
| Phoenix Health Plan Arizona |
| PHP of Michigan |
| PHP of Mid-Michigan |
| PHP of South Michigan |
| PHP of Southwest Michigan |
| PHP of West Michigan |
| PHP SW Michigan |
| PHP TennCare |
| Physicians Health Plan, Inc. South Carolina |
| Physicians Medical Group of San Jose |
| Preferred Health Systems |
| Preferred One |
| Presbyterian Health New Mexico |
| PrimeCare Health Plan |
| Principal Financial Group |
| Principal Financial Life Insurance Company of America |
| Priority Health |
| Priority Health of Michigan Medicaid |
| Professional Benefits Administration Illinois |
| Professional Benefits Administration Ohio |
| Providence Choice Optin |
| Providence Health Plan Oregon |
| Puerto Rico Medicaid |
| Rocky Mountain HMO Colorado |
| San Francisco Health Plan California |
| San Joaquin Health Plan |
| Scan HMO California |
| Self Insured Plans |
| Sloans Lake Managed Care of Colorado |
| South Carolina Medicaid |
| South Dakota Medicaid |
| Spina Bifida VA HAC |
| SRT Administrators |
| Stanislaus County MIA California |
| Star HRG |
| State Employee Health Plan Mississippi |
| Superior Administrators |
| Tennessee Medicaid |
| Texas CHIP Medicaid |
| Texas Medicaid |
| Three Rivers Health Plan Pennsylvania |
| TLC |
| Total Health Care of Michigan Medicaid |
| Trailblazer Colorado Medicare |
| Trailblazer New Mexico Medicare |
| Trailblazer Texas Medicare |
| Tricare - Palmetto |
| TriCare Champus |
| Trustmark |
| Tufts Health Plan |
| UHC of Alabama |
| UHC of Arizona |
| UHC of Arkansas |
| UHC of Colorado |
| UHC of Florida |
| UHC of Florida (North) |
| UHC of Georgia |
| UHC of Illinois (Choice & Open Access) |
| UHC of Kentucky |
| UHC of Louisiana |
| UHC of Mid-Atlantic (Maryland) |
| UHC of Midlands (Midlands Choice) |
| UHC of Midlands (Nebraska) |
| UHC of Midlands HMO (Choice and Select) |
| UHC of Midlands PPO (Choice, Select Plus, Self Fund) |
| UHC of Mississippi |
| UHC of New England, Inc. |
| UHC of New York (Includes New Jersey) |
| UHC of North Carolina |
| UHC of Northern California |
| UHC of Ohio |
| UHC of Puerto Rico |
| UHC of Southern California |
| UHC of Tennessee |
| UHC of Texas (Dallas) |
| UHC of Texas (Houston) |
| UHC of the Midwest (Choice, Choice Plus, Select, Select Plus) |
| UHC of the Midwest (Medicare Complete) |
| UHC of the Midwest, Inc. (Missouri) |
| UHC of Upstate New York, Inc. |
| UHC of Utah |
| UHC of Virginia |
| UHC South |
| UHC South (Birmingham, Alabama) |
| UHC South (Jackson, Mississippi) |
| UHC South (Little Rock, Arkansas) |
| UHC South (Nashville, Tennessee) |
| Underwriters Safety & Claims |
| Unified Group Services |
| United Behavioral Systems |
| United Government Services California Medicare |
| United Government Services Hawaii Medicare |
| United Government Services Michigan Medicare |
| United Government Services Minnesota Medicare |
| United Government Services Nevada Medicare |
| United Government Services Virginia Medicare |
| United Government Services West Virginia Medicare |
| United Government Services Wisconsin Medicare |
| United Health and Life |
| United Health Care Commercial |
| United Healthcare |
| Universal Care (California) |
| University Family Care (Arizona) (aka - University Physicians Inc.) |
| University Health Alliance (Hawaii) |
| Upper Pennisula Health Plan Medicaid |
| Vanderbilt |
| Vermont Medicaid |
| Veterans Affairs Fee Basis Program |
| Veterans Affairs Health Administration Center (HAC) |
| Virginia Medicaid |
| VIVRA |
| Washington Medicaid |
| Wellchoice of New Jersey |
| West Virginia Medicaid |
| Western Health Advantage California |
| Wheeler Companies |
| Wisconsin Commercial |
| Wisconsin Medicaid |
| Woods-Grooms Benefit Service |
| Wyoming Medicaid |
