Can we bill professional component in new hospital?

Hi!
I am faced with a situation, there is a new hospital which has not been credentialed with medicare or medicaid as yet (its under process, the visit and survey is done). So we cant bill medicare as yet but can we bill professional component of procedures performed by physicians at this service? Here is the physician is medicare credentialed and we will bill on his NPI but the place of service is not on medicare as yet.
E.g. There is a cardiologist and he performs an echo; cpt: 93306 so can he bill 93306 with modifier 26 at this new hospital?

I will be really grateful if somebody could answer this question or direct me in a right direction.

Regards