<P> The association has its headquarters in the Michigan Plaza complex in the Chicago Loop area of Chicago, Illinois . </P> <Table> <Tr> <Td> <P> Publicly traded companies </P> <Ul> <Li> Anthem Inc <Ul> <Li> Anthem BlueCross and BlueShield <Ul> <Li> Colorado </Li> <Li> Connecticut </Li> <Li> Georgia </Li> <Li> Indiana </Li> <Li> Kentucky </Li> <Li> Maine </Li> <Li> Missouri (excluding 30 counties in the Kansas City area) </Li> <Li> Nevada </Li> <Li> New Hampshire </Li> <Li> Ohio </Li> <Li> Virginia (excluding the Northern Virginia suburbs of Washington, D.C.) </Li> <Li> Wisconsin </Li> </Ul> </Li> <Li> Anthem Blue Cross (California) </Li> <Li> Blue Cross Blue Shield of Georgia </Li> <Li> Empire BlueCross BlueShield (New York) </Li> </Ul> </Li> <Li> Triple - S Management Corporation (BlueCross & BlueShield Puerto Rico) </Li> </Ul> <P> Multi-state private companies </P> <Ul> <Li> CareFirst <Ul> <Li> District of Columbia </Li> <Li> Maryland </Li> <Li> Parts of Virginia </Li> </Ul> </Li> <Li> Health Care Service Corporation <Ul> <Li> BlueCross BlueShield of Illinois </Li> <Li> BlueCross BlueShield of Montana </Li> <Li> BlueCross BlueShield of New Mexico </Li> <Li> BlueCross BlueShield of Oklahoma </Li> <Li> BlueCross BlueShield of Texas </Li> </Ul> </Li> <Li> Highmark <Ul> <Li> Highmark BlueCross BlueShield (Western and Northeastern Pennsylvania) </Li> <Li> Highmark BlueShield (Eastern & Central Pennsylvania) </Li> <Li> Highmark BlueCross Blue Shield Delaware (Delaware) </Li> <Li> Highmark BlueCross BlueShield West Virginia (formerly Mountain State Blue Cross Blue Shield) (West Virginia) </Li> </Ul> </Li> <Li> Premera <Ul> <Li> Premera BlueCross BlueShield of Alaska </Li> <Li> Premera BlueCross (Washington) </Li> </Ul> </Li> <Li> Cambia Health Solutions <Ul> <Li> Regence BlueShield of Idaho </Li> <Li> Regence Blue Cross Blue Shield of Oregon </Li> <Li> Regence BlueCross BlueShield of Utah </Li> <Li> Regence BlueShield (Washington) </Li> </Ul> </Li> <Li> Wellmark Blue Cross Blue Shield <Ul> <Li> Iowa </Li> <Li> South Dakota </Li> </Ul> </Li> </Ul> </Td> <Td> <P> Single - state or regional companies </P> <Ul> <Li> Blue Cross and Blue Shield of Alabama </Li> <Li> BlueCross BlueShield of Arizona </Li> <Li> Arkansas BlueCross BlueShield </Li> <Li> Blue Shield of California </Li> <Li> BlueCross BlueShield of Florida (branded as Florida Blue) </Li> <Li> Hawaii Medical Service Association </Li> <Li> Blue Cross of Idaho </Li> <Li> BlueCross BlueShield of Kansas </Li> <Li> BlueCross BlueShield of Louisiana </Li> <Li> Blue Cross Blue Shield of Massachusetts </Li> <Li> Blue Cross Blue Shield of Michigan </Li> <Li> Blue Cross Blue Shield of Minnesota </Li> <Li> Blue Cross Blue Shield of Mississippi </Li> <Li> Blue Cross and Blue Shield of Kansas City </Li> <Li> Blue Cross Blue Shield of Nebraska </Li> <Li> Horizon Blue Cross Blue Shield of New Jersey </Li> <Li> Excellus BlueCross BlueShield (Central New York, Rochester and Utica / Watertown) </Li> <Li> BlueShield of Northeastern New York (A division of HealthNow New York Inc .) </Li> <Li> BlueCross BlueShield of Western New York (A division of HealthNow New York Inc .) </Li> <Li> Blue Cross Blue Shield of North Carolina </Li> <Li> Blue Cross Blue Shield of North Dakota </Li> <Li> Blue Cross of Northeastern Pennsylvania </Li> <Li> Capital Blue Cross (Central Pennsylvania) </Li> <Li> Independence Blue Cross (Philadelphia, Southeastern Pennsylvania) </Li> <Li> Blue Cross Blue Shield of Rhode Island </Li> <Li> Blue Cross Blue Shield of South Carolina </Li> <Li> BlueCross BlueShield of Tennessee </Li> <Li> BlueCross BlueShield of the U.S. Virgin Islands </Li> <Li> BlueCross BlueShield of Vermont </Li> <Li> BlueCross BlueShield of Wyoming </Li> </Ul> <P> Companies outside of the United States </P> <Ul> <Li> BlueCross BlueShield of Costa Rica </Li> <Li> BlueCross BlueShield of Panama </Li> <Li> BlueCross BlueShield of Uruguay </Li> </Ul> </Td> </Tr> </Table> <Tr> <Td> <P> Publicly traded companies </P> <Ul> <Li> Anthem Inc <Ul> <Li> Anthem BlueCross and BlueShield <Ul> <Li> Colorado </Li> <Li> Connecticut </Li> <Li> Georgia </Li> <Li> Indiana </Li> <Li> Kentucky </Li> <Li> Maine </Li> <Li> Missouri (excluding 30 counties in the Kansas City area) </Li> <Li> Nevada </Li> <Li> New Hampshire </Li> <Li> Ohio </Li> <Li> Virginia (excluding the Northern Virginia suburbs of Washington, D.C.) </Li> <Li> Wisconsin </Li> </Ul> </Li> <Li> Anthem Blue Cross (California) </Li> <Li> Blue Cross Blue Shield of Georgia </Li> <Li> Empire BlueCross BlueShield (New York) </Li> </Ul> </Li> <Li> Triple - S Management Corporation (BlueCross & BlueShield Puerto Rico) </Li> </Ul> <P> Multi-state private companies </P> <Ul> <Li> CareFirst <Ul> <Li> District of Columbia </Li> <Li> Maryland </Li> <Li> Parts of Virginia </Li> </Ul> </Li> <Li> Health Care Service Corporation <Ul> <Li> BlueCross BlueShield of Illinois </Li> <Li> BlueCross BlueShield of Montana </Li> <Li> BlueCross BlueShield of New Mexico </Li> <Li> BlueCross BlueShield of Oklahoma </Li> <Li> BlueCross BlueShield of Texas </Li> </Ul> </Li> <Li> Highmark <Ul> <Li> Highmark BlueCross BlueShield (Western and Northeastern Pennsylvania) </Li> <Li> Highmark BlueShield (Eastern & Central Pennsylvania) </Li> <Li> Highmark BlueCross Blue Shield Delaware (Delaware) </Li> <Li> Highmark BlueCross BlueShield West Virginia (formerly Mountain State Blue Cross Blue Shield) (West Virginia) </Li> </Ul> </Li> <Li> Premera <Ul> <Li> Premera BlueCross BlueShield of Alaska </Li> <Li> Premera BlueCross (Washington) </Li> </Ul> </Li> <Li> Cambia Health Solutions <Ul> <Li> Regence BlueShield of Idaho </Li> <Li> Regence Blue Cross Blue Shield of Oregon </Li> <Li> Regence BlueCross BlueShield of Utah </Li> <Li> Regence BlueShield (Washington) </Li> </Ul> </Li> <Li> Wellmark Blue Cross Blue Shield <Ul> <Li> Iowa </Li> <Li> South Dakota </Li> </Ul> </Li> </Ul> </Td> <Td> <P> Single - state or regional companies </P> <Ul> <Li> Blue Cross and Blue Shield of Alabama </Li> <Li> BlueCross BlueShield of Arizona </Li> <Li> Arkansas BlueCross BlueShield </Li> <Li> Blue Shield of California </Li> <Li> BlueCross BlueShield of Florida (branded as Florida Blue) </Li> <Li> Hawaii Medical Service Association </Li> <Li> Blue Cross of Idaho </Li> <Li> BlueCross BlueShield of Kansas </Li> <Li> BlueCross BlueShield of Louisiana </Li> <Li> Blue Cross Blue Shield of Massachusetts </Li> <Li> Blue Cross Blue Shield of Michigan </Li> <Li> Blue Cross Blue Shield of Minnesota </Li> <Li> Blue Cross Blue Shield of Mississippi </Li> <Li> Blue Cross and Blue Shield of Kansas City </Li> <Li> Blue Cross Blue Shield of Nebraska </Li> <Li> Horizon Blue Cross Blue Shield of New Jersey </Li> <Li> Excellus BlueCross BlueShield (Central New York, Rochester and Utica / Watertown) </Li> <Li> BlueShield of Northeastern New York (A division of HealthNow New York Inc .) </Li> <Li> BlueCross BlueShield of Western New York (A division of HealthNow New York Inc .) </Li> <Li> Blue Cross Blue Shield of North Carolina </Li> <Li> Blue Cross Blue Shield of North Dakota </Li> <Li> Blue Cross of Northeastern Pennsylvania </Li> <Li> Capital Blue Cross (Central Pennsylvania) </Li> <Li> Independence Blue Cross (Philadelphia, Southeastern Pennsylvania) </Li> <Li> Blue Cross Blue Shield of Rhode Island </Li> <Li> Blue Cross Blue Shield of South Carolina </Li> <Li> BlueCross BlueShield of Tennessee </Li> <Li> BlueCross BlueShield of the U.S. Virgin Islands </Li> <Li> BlueCross BlueShield of Vermont </Li> <Li> BlueCross BlueShield of Wyoming </Li> </Ul> <P> Companies outside of the United States </P> <Ul> <Li> BlueCross BlueShield of Costa Rica </Li> <Li> BlueCross BlueShield of Panama </Li> <Li> BlueCross BlueShield of Uruguay </Li> </Ul> </Td> </Tr> <P> Publicly traded companies </P>

Is highmark blue cross blue shield the same as anthem