Find the Right Specialist for You

Mahendra RajMRCP (UK)

Stomach & digestion · Kuala Lumpur

Dr. Saowapak Pongsasitorn, MD.

Preventive Medicine · Bangkok

Dr. Saowapak Pongsasitorn is a Consultant Preventive Medicine and Anti-Aging Physician at the Wellness Center of Bangpakok 9 International Hospital. She specializes in preventive healthcare, lifestyle medicine, anti-aging and regenerative medicine, with additional expertise in dermatology and chelation therapy. Her approach emphasizes early disease detection, personalized prevention strategies, and evidence-based wellness programs that promote healthy aging and long-term wellbeing. Dr. Saowapak provides comprehensive care for patients seeking preventive health assessments, skin health management, nutritional optimization, and non-surgical anti-aging treatments. Her clinical interests include IV vitamin therapy, chelation therapy, weight management, regenerative wellness programs, and personalized supplementation designed to improve overall health and vitality. She also manages a variety of dermatologic conditions while integrating lifestyle modifications to achieve sustainable health outcomes. With multidisciplinary training in preventive medicine, nutritional wellness, and dermatology, Dr. Saowapak is committed to helping patients maintain optimal health through individualized treatment plans that focus on disease prevention, longevity, and quality of life.

Dr. Shim Hang HockMRCP(UK)

12+ years of experience · Stomach & digestion · Singapore

Dr Shim Hang Hock is a Gastroenterologist currently practising at Acorn Gastroenterology, with clinics located in Farrer Park, Napier, Telok Kurau Road, and Orchard. In 2016, Dr Shim was awarded the Healthcare Manpower Development Programme scholarship by the Ministry of Health, Singapore to undergo advanced fellowship training in Calgary, Canada. He has also received several service-related awards for his dedicated care and service excellence. His clinical practice covers gastroenterology and general hepatology . He has a subspecialty interest in inflammatory bowel disease, including ulcerative colitis and Crohn’s disease, as well as digestive cancer screening. He also performs capsule endoscopy, small bowel enteroscopy, and therapeutic endoscopy. Dr Shim obtained his Bachelor of Medicine from the University of Southampton, United Kingdom, in 2007. He later completed his postgraduate medical qualifications in internal medicine, namely the Membership of the Royal College of Physicians (MRCP), and a Master of Medicine (MMed), before being subsequently accredited as a specialist in gastroenterology with the Specialist Accreditation Board, Singapore. Prior to private practice, Dr Shim practised clinical gastroenterology and general hepatology at Singapore General Hospital, where he served as the Director of Inflammatory Bowel Disease Centre. He currently continues to be a Visiting Consultant at the same institution. As an educator, he was formerly an Adjunct Assistant Professor

Datin Dr Sharmila SachithanandanMRCP (IRE)

Stomach & digestion · Subang Jaya

Consultant Gastroenterologist with expertise in advanced endoscopy and liver diseases

Dr. Chong Chern HaoMRCP (UK)

15+ years of experience · Stomach & digestion · Singapore

Dr Chong Chern Hao is a Gastroenterologist currently practising at Acorn Gastroenterology in Farrer Park, Napier, Telok Kurau Road, Orchard, and Thomson Specialists (TMC) . With extensive experience in hepatology (liver disease), Dr Chong has managed a wide range of cases and contributed to numerous clinical trials, including those involving viral hepatitis B and C, liver cirrhosis, and liver transplantation. He is also trained in advanced endoscopic techniques such as enhanced imaging endoscopy and water-immersion colonoscopy, a specialised method that improves success rates in challenging procedures and enhances detection of colon cancer. His areas of practice include general gastroenterology , digestive cancer screening, and liver disorders. He has subspecialty interests in fatty liver, viral hepatitis, liver cancer, and other liver-related disorders. Dr Chong also manages gastritis, gastroesophageal reflux disease (GERD), and irritable bowel syndrome (IBS). His procedures include capsule endoscopy , diagnostic and therapeutic upper GI endoscopy, diagnostic and therapeutic colonoscopy, percutaneous endoscopic gastrostomy, and procedural sedation. Dr Chong graduated from the University of Malaya in 2009 as a Dean’s List student and began his medical career in Singapore as a house officer. He then pursued specialist training in Internal Medicine and Gastroenterology under the National University Health System (NUHS) Residency Program, earning his Membership of the Royal Coll

Lee Piao Jarrod

Stomach & digestion · Singapore

Dr Jarrod Lee is a gastroenterologist at Mount Elizabeth Hospitals, Gleneagles Hospital and Parkway East Hospital, Singapore. His interest is in gastrointestinal cancer screening and prevention, and in harnessing technology for early cancer detection and prevention. He specialises in advanced endoscopy, including endoscopic ultrasound and endoscopic retrograde cholangio-pancreatography. Dr Lee set up the gastroenterology service at Khoo Teck Puat Hospital (KTPH) in 2010 and established the division of gastroenterology and the endoscopy centre for the hospital, serving as the clinical lead and chairman of the respective units before leaving for private practice. He was a former visiting consultant at the National University Hospital and KTPH. He graduated in 1998 and completed internal medicine training in 2004. In 2009, he was accredited as a specialist in gastroenterology. Dr Lee is a winner of the American Society Gastrointestinal Endoscopy (ASGE) Audiovisual Award and the ASGE Crystal Award, which are international awards recognising outstanding educational productions and contributions related to gastrointestinal endoscopy. He is the earliest and only person to date from Southeast Asia to win these awards. He lectures extensively both locally and regionally. He is a reviewer for several endoscopy journals in the world and provides consultation for major companies in the endoscopy industry. He is also a frequent guest speaker and writer to the primary healthcare community, partnering with family physicians to improve digestive health in the community. Dr Lee continues to support the public sector as a visiting consultant endoscopist, where he performs advanced procedures for complex cases and trains the next generation of endoscopists.

Marianne Anastasia De Roza

Stomach & digestion · Singapore

Dr Marianne De Roza is a gastroenterologist at Mount Elizabeth Novena Hospital, Singapore. Her subspeciality is in liver disease. She regularly performs endoscopic procedures, including cancer screening gastroscopy and colonoscopy, as well as therapeutic interventions to remove polyps or control bleeding. Dr De Roza was the former head of the hepatology service at Sengkang General Hospital. She is currently a visiting consultant at the hospital. She graduated from the National University of Singapore (NUS) and obtained her master’s degree there. Having a special interest in palliative hepatology and liver cirrhosis, she further pursued a graduate diploma in palliative medicine and was director of the multidisciplinary liver supportive care programme – PEACE, a pilot programme she established for end-stage liver disease. She wrote and implemented hospital protocols and served as a committee member in various workgroups for liver disease. She is a fellow of the Academy of Medicine, Singapore and the Royal College of Physicians, UK. Her research interests include fatty liver, palliation in liver disease, liver cirrhosis and its complications. She has participated in several multi-centre research collaborations with competitive grant support. Besides her clinical work, Dr De Roza was an assistant professor at Duke-NUS Medical School and a clinical lecturer at Yong Loo Lin School of Medicine. She was also the site director, core faculty and clinical competency committee member for the SingHealth gastroenterology senior residency programme. Dr De Roza is a recipient of the You Sparkle! awards, You Shine Award and the Singapore Health Quality Service awards.

Wang Yu Tien

Stomach & digestion · Singapore

Dr Wang Yu Tien is a gastroenterologist practising in Gleneagles Hospital and Mount Elizabeth Novena Hospital, Singapore. He specialises in digestive, bowel and liver diseases, and his subspecialty interests lie in digestive function disorders such as gastroesophageal reflux disease and irritable bowel syndrome (IBS). He is experienced in the management of a wide range of gastrointestinal, digestive and liver diseases and specialises in digestive disorders such as heartburn, GERD and IBS, liver conditions like cirrhosis, Hepatitis A, B, and C, and fatty liver disease. Dr Wang is also experienced in performing advanced endoscopies such as gastroscopy, colonoscopy and polypectomy. Dr Wang graduated from The University of Sydney in 2001, and completed his post-graduate training in internal medicine and advanced training in gastroenterology and hepatology in Singapore General Hospital (SGH) in 2010. To further his interest in digestive function disorders, he completed a one-year fellowship at the Centre for Digestive Diseases at Barts and The London School of Medicine and Dentistry, UK. Previously, Dr Wang served as a senior consultant at the gastroenterology and hepatology department in SGH where he helped establish a multidisciplinary service to manage digestive function disorders which integrates medical, dietary and psychological therapy. During his time in SGH, he was also the director of the gastrointestinal function laboratory. He was also the core faculty and co-chairperson of the SingHealth gastroenterology training programme. He is the current gastroenterology specialty editor for Singapore Medical Journal. His research in the field of gastroesophageal reflux disease, irritable bowel syndromes, clinical nutrition and digestive function disorders has been recognised by the New England Journal of Medicine Journal Watch.

Dr Chang Chiew Sinn

Dentistry · Penang

Orthodontist specialising in teeth alignment, bite correction, dentofacial orthodontics, and advanced orthodontic treatment planning.

Dr. Marianne Anastasia De Roza

10+ years of experience · Stomach & digestion · Singapore

Gastroenterologist specializing in liver disease, digestive cancer screening, and palliative hepatology with extensive endoscopy experience.

Dr. Kanteera Sriyudthsak, MD.

Stomach & digestion · Bangkok

Gastroenterologist specializing in digestive and liver diseases, including hepatitis and gastrointestinal disorders.

Dr. Edwin Heng Chia KianFAMS

Dentistry · Singapore

Periodontist and implant dentistry specialist with military leadership experience and international academic appointments in periodontal surgery.