Provider Links Anthem Blue Crosshttp://www.anthem.com/ Provider Directory Machine-readable Files EIN: 956474516 Anthem Price Comparison Tool Kaiser Permanentehttp://www.kaiserpermanente.org/ Machine-readable Files UnitedHealthcare of Californiahttp://www.myuhc.com/ OptumRxhttps://www.optumrx.com/ Delta Dentalhttp://www.deltadentalins.com/ United Concordiahttp://www.ucci.com/