Each CCC is different, but they do follow standardized practices set forth by NCCN, and other professional medical organization's as a guideline. The doctor's expertise, experience, preference is a factor, as is the hospital's, any clinical trials, and type of any technical equipment they utilize like robotics, proton therapy, etc. and the patient's request matters too. You will find many doctor's who have expertise in certain areas in the same speciality. If you want, you can go to the hospital's web page, and see what they offer, including some who have the doctors full background. I also like to go to U.S. News and Buisness report best hospitals to see where they rank in cancer, ENT, and other info, and NCCN, NCI listing of associated CCC, and a google or two to see different comments of patients on various sites about the doctor.
Vanderbilt University Medical Center in Memphis is nationally ranked 7th in ENT, 29th for cancer in the U.S.
I hope this helps.