Datuk Dr Tan Si Yen

Trained in gastroenterology and hepatology at Universiti Malaya, managing liver diseases including hepatitis, fatty liver, cirrhosis, and performing diagnostic endoscopy, colonoscopy, and gastrointestinal bleeding evaluations.

Trained in gynaecological oncology in London, with advanced expertise in robotic-assisted surgery for ovarian, cervical, and uterine cancers, plus minimally invasive laparoscopic techniques and women's health screening.

Trained in neonatology across Malaysia and Japan, focusing on premature infant care, newborn complications, respiratory conditions, and developmental monitoring alongside general paediatric health assessments and family-centred treatment.

Manages acute and chronic ENT disorders in adults and children, including sinus disease, hearing problems, allergies, voice disorders, and throat infections with patient-centred, evidence-based care.