Blue Cross Blue Shield Global® Core - formerly BlueCard Worldwide® FREE* Blue Cross Blue Shield Global® Core is for Blue Cross and Blue Shield members. As an eligible Blue member, you can use GeoBlue’s Blue Cross Blue Shield Global® Core app to find doctors and hospitals outside the United States, Puerto Rico and the U.S. Virgin Islands. You can also find other valuable resources to help you stay safe and healthy around the world. FIND PROVIDERS Quickly locate the right doctor, hospital, p