I work for a group of maxillofacial surgeons. They work at our local hospitals and see patients in the er, do surgery, admit and dc, and also have a clinic office. I am having a discussion with a coworker about the e & m when the patient comes to our clinic for follow up. Since this patient has already been seen by the our doctor or same group of doctors (same tax id number) at the hospital, is the patient considered new or established when they present to our clinic for fu?