If a practice is hospital owned and the hospital and the practice use the same tax ID# can the hospital bill dressing changes for patients who have wounds that require daily and sometimes more than once a day dressing changes when the patient is in a global period? The doctor is not billing any type of evaluation due to the global (and sometimes the docotr does not see the patient, since it is a dressing change, unless the nurse doing the dressing change feels there is a problem), but the hospital wants to bill a facility charge for the dressing changes. Does the hospital facility charge fall under the global period, due to the tax ID# being the same for both the doctor and the hospital?