Dr. Koay Cheng Eng serves as a senior ENT and head and neck surgeon at Sunway Medical Centre. After earning his MBBS from the University of London, he completed specialist training in the UK and gained fellowship from the Royal College of Surgeons in Glasgow. At Sunway, he performs advanced procedures such as endoscopic sinus surgery, mastoid work, thyroid and salivary gland removal, parotidectomy, and sleep apnoea treatments. His clinical focus includes managing sinusitis, voice and throat disorders, ENT allergies, dizziness, and head and neck cancers. In addition to his surgical practice, Dr. Koay mentors junior doctors and engages actively in professional development within the field.