Their office will tell you if you call. But 6 year ENT's are all head and neck surgeons. They do surgery all week and recalls on surgical patients they have seen. In general while they know more about oral cancers than most, they are a refferal doctor and get most of their patients from someone else�including 4 year ENT's, general MD's etc. But when you call the doctors office you don't need to ask about his years of school or his years of residency ( surgical residency on top of regular) you just have to ask if he/she is a head and neck surgeon. With that question you know it all. But you really don't need to seek one out, just have your regular ENT refer you to the person they prefer for the biopsy. Taking a small sample of something is no big deal for the doctor or the patient, the person that really makes the calls is the pathologist that reads the sample. You won't interact with them and they will be picked by the person taking the biopsy.