Dr David Lau Pang Cheng has practiced as an ENT surgeon for over 25 years, treating ear, nose, and throat disorders in adults and children. He leads the region in laryngology, focusing on throat, voice, and swallowing disorders. He also treats sleep apnea, performs thyroid surgeries, and manages allergic nasal conditions. He founded the ENT allergy clinic at Singapore General Hospital and co-directs sinus surgery courses in Singapore. Dr Lau actively teaches, speaks at conferences, and examines candidates for the MMed and FAMS boards locally and internationally.