Our Doctors

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Our Doctors

Dr. Wong Kae Thong

Medical Director
AsiaMedic Wellness Assessment Centre
MD, MRCPCh, MMed (Paed)

Dr Wong Kae Thong is a graduate of the University of Western Ontario, Canada. She is a general practitioner who has special interests in preventive health screening, travel medicine, and women’s and children’s health. She has practised medicine in rural settings and paediatric medicine in hospital settings. Dr Wong has been involved in preventive health and wellness care for individual and corporate patients since 2005. She is based at the AsiaMedic Wellness Assessment Centre, which is located at the heart of Orchard Road.

Dr. Sylvia Lim Sie Via

Resident Physician
AsiaMedic Wellness Assessment Centre
MB BCH BAO

Dr Sylvia Lim is a graduate of the National University of Ireland(UCD-PMC). She is a general practitioner who has special interests in Preventive Medicine, specifically early detection of chronic illnesses, management of chronic illnesses, and women’s health. She has practised medicine in Malaysia and the polyclinics in Singapore. Dr Lim has been involved in preventive health and wellness care for individual and corporate patients since 2011 and since 2015 with AsiaMedic. She is based at the AsiaMedic Wellness Assessment Centre, which is located at the heart of Orchard Road.

Dr. Samuel Toh

Resident Physician
AsiaMedic Wellness Assessment Centre
MbBChBao (Ireland), BSc Biochemistry (USA)

Dr Samuel Toh graduated from Royal College of Surgeons in Ireland in 2005, and had since been practicing medicine in Singapore. His years in various departments in the hospitals gave him wide experience in medicine. However, Dr Toh maintained a keen interest in cosmetic dermatology. He has attended many aesthetic courses and currently he is working on graduate diploma in dermatology from National University of Singapore.

Dr. Fiona Chang

Resident Physician
MD (Taiwan), MRCP (Glasgow)

Dr. Fiona Chang obtained her medical degree from Chang Gung University, Taiwan 2011 and subsequently completed her post-graduate training in Internal Medicine, Singapore. In 2015, Dr Chang attained the Membership of the Royal College of Physician (MRCP), Glasgow, United Kingdom and had since been practicing medicine in the Singapore restructured hospitals drawing experience in renal medicine, respiratory medicine, cardiology and dermatology.


Areas of interest:
  • Preventive Medicine
  • Women’s health
  • Chronic Disease Management
  • Travel Medicine
  • Minor Surgical procedures

Dr. Anna Wong

MBBS (Singapore)

Dr. Anna Wong graduated from the National University of Singapore in 1981. She has practiced in the government restructured hospitals, gaining experience in Emergency Medicine, ENT medicine and Neonatology.

Dr. Anna is a general practitioner with experience in the government polyclinics including Maternal & Child Health Clinic. In 1989, Dr. Anna left the polyclinic to set up her own private practice spanning 20 years. Since 2011, she has been involved in wellness care for individual and corporate clients here in AsiaMedic Wellness.

Dr. Siska Ferdina Taslim

MRCP (UK)
MBBS (Singapore)
Graduate Diploma in Family Medicine (Singapore)

Dr. Siska obtained her medical degree from the National University of Singapore. Her post-graduate qualifications include a Membership of the Royal College Physicians in Internal Medicine (United Kingdom) and Graduate Diploma in Family Medicine (GDFM).

Dr. Siska was previously with the restructured hospitals for 3 years rotating in Medical Oncology, Anaesthesiology, Accident and Emergency, Internal Medicine and Intensive Care, Cardiology and Dermatology. She last worked as a Senior Resident Physician with the government polyclinics before practising in the private centres.

As a General Practitioner, Dr. Siska has special interest in chronic care. She is passionate about lifestyle medicine.

Currently, Dr Siska renders her services in the schools across Singapore.

Dr. Lim Puay Joo

Consultant Radiologist
MBBS, FRCR (UK)

Dr. Lim graduated from the National University of Singapore in 2005 before obtaining his fellowship from the Royal College of Radiologists, London in 2012. Subsequently, he qualified as a Specialist in Diagnostic Radiology in 2015 and commenced specialist practice as a Consultant in the Department of Radiology, Ng Teng Fong General Hospital. Since 2018, he has been in private practice.

Dr. Lim is conversant and highly experienced in reading Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) studies. He has a special interest in musculoskeletal radiology.

Dr. Hweena Ng

Consultant Radiologist
MBBS, FRCR (UK)

Dr. Hweena Ng graduated from National University of Singapore and is a fellow of the Royal College of Radiologists (London). She has worked in restructured hospitals, private hospitals and medical centres since 1990. She brings with her a wealth of experience in clinical radiology and diagnostic imaging.

Prior to joining AsiaMedic, Dr. Hweena was a Consultant with Mount Alvernia Hospital.

Dr. Hweena has special interest in women wellness and general radiology.

Dr. Howe Tse Chiang

Specialty: Radiology Musculoskeletal imaging

Consultant Radiologist
MBBS, FRCR (UK), MBA

Dr. Howe Tse Chiang is a Consultant Radiologist with special interests in musculoskeletal imaging, teleradiology and machine learning in radiology.

Dr. Howe graduated from the Faculty of Medicine at the National University of Singapore in 1998 and subsequently received his fellowship of the Royal College of Radiologists in 2005. Following that, Dr. Howe earned his Master’s in Business Administration from Singapore Management University in 2009.

Dr. Howe has been a Visiting Consultant at Ng Teng Fong General Hospital (Jurong Health Services) since 2009. He is a member of the Fellow of Academy of Medicine Singapore, College of Radiologists Singapore and Singapore Medical Council.

With more than 15 years of experience, Dr. Howe has analysed and interpreted diagnostic imaging studies that cover the gamut from body, head and neck, neuro and musculoskeletal imaging.

Currently, Dr. Howe provides tele-reading from offsite.

Dr. Yong Zhi Yong

HOD & Medical Director
MBBS (Singapore)
Graduate Diploma in Family Medicine (Singapore)

Dr Zhi Yong obtained his medical degree from the National University of Singapore. He subsequently obtained a Graduate Diploma in Family Medicine (GDFM) and completed all the certificates of competency (COC) in administering botulinum toxin injection, chemical peels, dermal fillers, facial threads, laser for treating skin pigmentation and intense pulsed light, among others. He keeps abreast of the latest medical technologies through conferences and private trainings. Through this, Dr Zhi Yong ensures that the highest standards of clinical quality and patient safety are met, and only recommends technologies that have sound clinical evidence to his patients.

Dr Zhi Yong believes in using minimally invasive approach in treating various skin conditions to enhance a person’s natural beauty and delaying the signs of ageing.

Outside of work, Dr Zhi Yong loves having a glass of good wine with friends. Dr Zhi Yong enjoys playing recreational soccer and hopes to take his snowboarding skills to the next level.

Dr. Wong Kae Thong


MD, MRCPCh, MMed (Paed)

Dr Wong Kae Thong is a graduate of the University of Western Ontario, Canada. She is a general practitioner who has special interests in preventive health screening, travel medicine, and women’s and children’s health. She has practised medicine in rural settings and paediatric medicine in hospital settings. Dr Wong has been involved in preventive health and wellness care for individual and corporate patients since 2005.

Dr. Colin Koh

MBBS (Singapore)

Medical Manager

Dr Colin Koh graduated from the National University of Singapore in 1984. He has had a unique career as a family medicine doctor and healthcare administrator. Apart from Singapore, he has worked in Abu Dhabi, Vietnam and Indonesia. In Abu Dhabi he set up a state-of-the-art Wellness and Diagnostic Centre. He is certified in hyperbaric medicine and is a member of the American Anti-Aging Academy of Medicine.

He speaks Mandarin and Malay.

Areas of Interest:

  • Preventive and Integrated Lifestyle Medicine (Focus on Cardio-Metabolic Risk Management
  • Men's Health and Aging
  • Minor Surgical Procedures

Dr. Fiona Chang

Resident Physician
MD (Taiwan), MRCP (Glasgow)

Dr. Fiona Chang obtained her medical degree from Chang Gung University, Taiwan 2011 and subsequently completed her post-graduate training in Internal Medicine, Singapore. In 2015, Dr Chang attained the Membership of the Royal College of Physician (MRCP), Glasgow, United Kingdom and had since been practicing medicine in the Singapore restructured hospitals drawing experience in renal medicine, respiratory medicine, cardiology and dermatology.

Dr. Fiona is bilingual in English and Mandarin and also converses in Hokkien dialect.

Areas of Interest:

  • Preventive Medicine
  • Women’s health
  • Chronic Disease Management
  • Travel Medicine
  • Minor Surgical procedures

Senior Consultant Radiologist

MBBS, FRCR (UK), FAMS, AM (Mal), MBA