
Internal Medicine · Hematology
Dr. Xavier Sim Yoon Han is a distinguished Consultant Haematologist at Subang Jaya Medical Centre (SJMC), renowned for his profound expertise in blood disorders and blood cancers. He excels in diagnosing and treating complex conditions like Leukaemia, Lymphoma, and Multiple Myeloma, with a particular proficiency in advanced procedures such as Allogeneic and Autologous Bone Marrow Transplantation. Awarded a Fellowship in Clinical Haematology by the Ministry of Health Malaysia in 2009, Dr. Sim is a recognized leader in his field, contributing to medical literature and holding active memberships in prestigious professional societies. His patient-centric approach ensures optimal outcomes through comprehensive care and extensive experience.
Kar Yee Lim
October 31, 2025 at 4:00 AM
After I consulted Dr Xavier Sim (Consultant Clinical Haematologist) in November 2023, I was moved to email the CEO of SJMC. The CEO read the compliment (along with other doctors and nurses mentioned in my email) in SJMC's annual dinner. Besides the non-negotiable competency patients require, here's why I say Dr Xavier is the crème de la crème of the specialists: 1) Ushering patients (today a staff confirmed he is the only one who does this), 2)very thorough examination and enquiry of medical/ family history, 3) his motivating positivity, and 4) extreme patience. After explaining the results of procedures and subsequent follow-ups, he said, "From your results, there is nothing abnormal you should worry about. Most importantly, see yourself as a normal healthy person. Take precaution, and live your normal life." It was the last point that set Dr Xavier apart. The mindset of doctor matters! What I notice is some patients are very weak in physical body. A gentle (positive) way of delivering news (esp bad ones) will help in averting further anxiety. Today, I was blessed to have received the help of an amazing staff, Elaine Low. She went beyond her duty to help me. Truly grateful to have met her. These kind gestures of staffs, nurses and doctors have made SJMC my go-to hospital (not that I wish to visit regularly). I have been a regular blood donor in SJMC since 2004 because of Siva, the nurse. She's extremely skillful in drawing blood from "invisible" veins. Photo of Dr Xavier extracted from SJMC's website.

Subang Jaya, Malaysia

Subang Jaya, Malaysia