She is a registered medical specialist and her main professional interests are early diagnosis and treatment of skin cancer to avoid invasive procedures, wherever possible. She has been very successful at this over the years, leading to a very low rate of referral for major surgery, radiotherapy and chemotherapy. Hanh has lately specialised in complex restorative surgery of the nose and ears following skin cancer removal. She is a true artist in surgery.
Dr. Bui travels to the northern beaches from the north shore of Sydney, passing such fine suburbs as Frenchs Forest, Belrose, Beacon Hill, and Dee Why.