TC component of procedures

Within our company we have an office setting and a "hospital" setting where our physicians perform surgical procedures under anesthesia (2 different locations, 2 different companies, 2 different TIN's). We've been billing for the professional portion for the procedure and the TC portion for the procedure/medications/equipment, etc but now I'm being told that this is incorrect and we shouldn't be billing the TC portion since its done by our physician in our office. Does anyone know which is correct?

re: TC component of procedures

If performed in an office setting and that is place of service 11, it is global billing, no TC modifier, the physician pays staff and practice expense