
Anesthesiology · Intensive Care Medicine
Dr. Loy Yuong Siang is a distinguished Anesthesiologist with extensive experience in Anaesthesiology and Critical Care. Practicing since 1996, he brings a wealth of knowledge from Universiti Kebangsaan Malaysia, focusing on ensuring patient safety and comfort through expert anesthesia for diverse medical procedures and meticulous management of critical care patients.
Archer Ivy Lim
November 11, 2025 at 8:26 PM
I am deeply grateful to all the nurses who took such meticulous care of me during my hospital stay. Thank you for your patience and understanding. Beside, I would also like to extend special thanks to the Chinese nurse (Leong) in the emergency room for your attentive care. My heartfelt thanks go to my specialist, Dr. Ng Soon Pheng Your patience and professionalism empowered me to make brave decisions. Your comfort and empathy earned my admiration, and I am incredibly thankful for saving my life. Additionally, I want to thank Dr. Loy for your encouragement and support before and after the surgery. Your kindness and cheerfulness will always be remembered.
NUR'AINI MD ISA
November 11, 2025 at 8:26 PM
First time receiving treatment from Dr. Paisal, an orthopedic specialist. He provided clear and thorough explanations regarding my fractured leg condition, which made me confident in undergoing surgery with Dr. Paisal. The post-surgery examination was also excellent. Meanwhile, Dr. Loy, the anesthesiologist, was also very detailed and clear in her explanations regarding anesthesia selection. Dr. Loy's command of the Malay language is fluent; I was amazed listening to her explanations 😁. Thank you for the service and care from both doctors. May both doctors always be blessed with good health.
Rahman Haron
November 11, 2025 at 8:25 PM
I recently had an excellent experience at Columbia Asia Hospital, thanks to the exceptional care provided by Dr. Koo, Dr. Loi, and the entire nursing staff. Dr. Koo and Dr. Loi demonstrated impressive expertise and a compassionate approach to treatment, making me feel well-informed and comfortable throughout my stay. The emergency and ward nurses were equally outstanding, offering attentive and professional care with a genuine sense of empathy. Their combined efforts made a significant difference in my recovery, and I am deeply grateful for their support and dedication.
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Puchong, Malaysia

Puchong, Malaysia