Dr. Heah Sieu Min graduated from the National University of Ireland in 1990 with a Bachelor's degree in Medicine and Surgery. He began his career as a houseman in Ireland, before returning to Singapore where he worked in various hospitals including Tan Tock Seng Hospital, SGH and KK Women's and Children's Hospital. He obtained his FRCSEd in general surgery in 1994, and was accredited as a specialist in general surgery by the Singapore Ministry of Health and the Singapore Medical Council in 1999. He also obtained his FAMS in general surgery in 2000. He was appointed as the Director of Endoscopy Centre, Singapore General Hospital, in 2002.
Dr. Heah established his private practice, Heah Colorectal Endoscopy & Piles Centre, in 2007, Heah Endoscopy and Piles Centre (Bukit Batok) in 2010.