At his Mount Elizabeth Novena clinic, he provides specialised and holistic care in sports, adult and paediatric orthopaedics. Dr Siow specialises in advanced arthroscopic key-hole surgeries for the shoulder, elbow, wrist, hip , knee and ankle. He also specialises in paediatric orthopaedics. He is a member of the Singapore Orthopaedic Association and the Singapore Medical Association. He is currently a life member of the Asia Pacific Orthopaedic Association. He is also a member of the International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine (ISAKOS) as well as the European Society of Sports Traumatology Knee Surgery and Arthroscopy (ESSKA).