Doctor's Profile

Dr Allen Sim


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Allen Sim Urology


Mount Alvernia Hospital
820 Thomson Road
Medical Centre A #02-03
Singapore 574623

Clinic Hours

8.30am to 5pm (Mon – Fri)


Dr Sim is a compassionate, service-oriented Urologist with a robust experience of over 18 years with advanced academic and clinical background in basic to complex urology cases. Dr Sim was Director of Endourology and Fellowships in Department of Urology, Singapore General Hospital where he practiced for 15 years. He had relocated to Malaysia during COVID-19 and was instrumental in setting-up Urology services in Gleneagles Medini Johor, Malaysia. He was responsible in introducing the first robotic surgical system to Southern Malaysia – Da Vinci Xi. He has performed over 160 cases of robotic surgeries in past 1 year for both benign and malignant conditions. Dr Sim has pioneered minimally invasive treatment of BPH by introducing Prolieve Microwave Thermodilatation to Malaysian patients. Dr Sim was also amongst the first to introduce high power Thulium Laser for stone treatments in Malaysia and he has performed more than 1000 stone surgeries during his time in Johor. Dr Sim is also an recognized robotic and laparoscopic proctor in renowned training academy such as IRCAD, proctored robotic surgeons from Malaysia and Philippines, and has performed live surgeries in Singapore, Thailand, Myanmar and Philippines.