Dr. Teo Li-Tserng is a practicing Trauma and General Surgeon in Tan Tock Seng Hospital (TTSH).

He has been involved in trauma and acute surgical care in Tan Tock Seng Hospital since 2005. Other than trauma and acute care surgery, his other subspecialty interest is in colorectal surgery. He was appointed Chief of Trauma and Acute Care Surgery in 2013 and subsequently the Director of Trauma Service in TTSH and Director, Central Region Trauma Services, Singapore in 2019. In addition to improving clinical trauma and acute care in the hospital, he has instituted formal trauma audits and trauma teaching. In 2006, during the Yogyakarta Earthquake, he led a combined civilian and military specialist surgical team to supplement humanitarian efforts. He has co-ordinated medical evacuations and humanitarian relief missions that Tan Tock Seng Hospital was involved in.