Dr. Cheng grew up in a multi-cultural environment, having resided in China, Canada, United States, Hong Kong and Singapore. He migrated to Australia for University and completed his medical degree at The University of Sydney in 2010. He has also completed a Masters of Surgery in upper gastrointestinal surgery at The University of Sydney in 2016. Dr. Cheng underwent accredited surgical training at Westmead Hospital, obtaining his Surgical Fellowship with The Royal Australasian College of Surgeons in 2018. Since then, he has dedicated four years of post-fellowship sub-speciality training in upper gastrointestinal and bariatric surgery through well-recognised high volume centres at St. George Hospital in Sydney and St. Vincent Hospital in Melbourne.

Dr. Cheng maintains a strong commitment and passion for education and research. He holds conjoint lecturer positions with The University of Sydney and University of Western Sydney medical schools. From a research perspective, He has consistently contributed to the existing body of literature, having published widely in his sub-speciality fields of bariatric and upper gastrointestinal surgery. Through regular conference presentations, he remains an active member of his sub-specialty specific international and national societies (including the International Federation for the Surgery of Obesity and Metabolic Disorders, Australia and New Zealand Metabolic and Obesity Surgery Society)