My child had tonsilectomy & Adnoidectomy. Dr Yen and his staff, Assistant & Nurse were very polite & accommodating . Dr Yen is very polite, professional and Knowledgeable. He is a great Doctor/surgeon. He performed mine and my sisters surgery prior and the scar is not noticeable at all. I din’t want any other surgeon performing my child’s procedure. She loved his personality & caring attitude. He is great with children & adults.