Dr Tan Poh Seng is a gastroenterology specialist in Singapore with clinical expertise in digestive diseases, liver diseases, and endoscopic procedures. He is currently the head gastroenterologist in Gastroenterologist Singapore.

Before taking over a private practice, he worked at different hospitals and medical institutions. Dr Tan Poh Seng’s career in gastroenterology took a leap after he was accredited and certified in 2011.