You don't say if she is already contracted with carriers, but if not yes, she will need to be credentialed with the carriers she wasn't credentialed with. If she was credentialed with the previous carriers you should just contact them to see what would need to be done to change the office/location, or if she has to credential as a solo provider. SOME carriers will roll over a provider to their own file and some will require she start the process all over.