Arkansas Blue Cross Blue Shield (2004)

Blue Cross Blue Shield of Alabama (2004)

Blue Cross Blue Shield of Florida (2005)

Blue Cross Blue Shield of Massachusetts (1994)

Blue Cross Blue Shield of Michigan (1994)

Blue Cross Blue Shield of Minnesota (1998)

Blue Cross Blue Shield of Nebraska (2008)

Blue Cross Blue Shield of North Carolina (2000)

Blue Cross Blue Shield of Rhode Island (2004)

Blue Cross of Idaho (2007)

Blue Shield of California (1994)

Capital Blue Cross (2002)

CareFirst Blue Cross Blue Shield (1997)

Health Care Service Corporation

• Blue Cross Blue Shield of Illinois (1994)
• Blue Cross Blue Shield of New Mexico (2001)
• Blue Cross Blue Shield of Oklahoma (2005)
• Blue Cross Blue Shield of Texas (1994)

• Regence BlueCross BlueShield of Oregon (2000)
• Regence BlueCross BlueShield of Utah (2000)
• Regence BlueShield of Idaho (2000)
• Regence BlueShield (2000)

• Blue Cross Blue Shield of Iowa (2006)
• Blue Cross Blue Shield of South Dakota (2006)

• Anthem Blue Cross and Blue Shield (1997) (CO, CT, GA, IN, KY, ME, MO, NH, NV, OH, VA, WI)
• Anthem Blue Cross (1999) (CA)
• Empire Blue Cross and Blue Shield (1997) (NY)