Dr Png Keng Siang graduated from National University of Singapore in 2000 with a Bachelor of Medicine, Bachelor of Surgery. In 2005, he was accepted into the Royal College of Surgeons in Edinburgh, and later completed his Master of Medicine (Surgery) at National University Singapore in 2006. In 2010, Dr Png completed his fellowship in urology at Royal College of Surgeons Glasgow and in the same year received his certification from the Education Commission for Foreign Medical Graduates in the United States. Dr Png continued his fellowships at both the Academy of Medicine in Singapore and later at the American College of Surgeons. Throughout his formal training, Dr Png has honed his skills in robotic and laparoscopic surgery.

Passionate about sharing his knowledge with fellow surgeons and the next generation of doctors, Dr Png has trained numerous urologists internationally. He has held several positions with notable institutions including Tan Tock Seng Hospital, the National Healthcare Group, the National University of Singapore and the Singapore Urological Association. Additionally, he is a founding member of the Robotic Surgery Society of Singapore.

He continues to be active in the medical community as a member of several international organisations including the American Urological Association and Endourological Society, the Society of Urological Robotic Surgeons. Dr Png is a published author, public speaker, experienced researcher and an invited reviewer for the numerous medical journals worldwide.

Dr Png accepts referrals for all cancer types, with a special clinical interest in laparoscopic surgery for kidney, bladder and prostate cancers.