Dr Amanda YL Lim is a Consultant Endocrinologist in NUH. She is currently the Programme Director in Endocrinology in NUHS. Her subspeciality interest is in Type 2 Diabetes Mellitus and Obesity. She was awarded the Learning Development Award to pursue a fellowship in the obesity management with the Imperial Weight Centre in the UK.

Dr Amanda Zain is a consultant practising general paediatrics and paediatric emergency medicine at NUH, and an Adjunct Assistant Professor at NUS Medicine. As a clinician educator, she teaches undergraduates and residents across paediatrics and sustainability topics. Alongside her clinical and teaching responsibilities, her doctoral research focuses on the application of implementation science in sustainable prescribing, particularly in inhalers and paediatric asthma care. She previously served as the Assistant Dean in Sustainability at NUS Medicine, helping establish the Centre for Sustainable Medicine as its founding Deputy Director. She now serves as Clinical Lead at the National University Health System Office of Sustainability and is an affiliate faculty of the medical school's Behavioural and Implementation Sciences Intervention (BISI) and Heat Resilience and Performance Centre (HRPC). Her work intersects with institutional and health system efforts on climate adaptation and sustainable care models.

Dr. Christopher Smith is a general internist in the Division of General Medicine and Primary Care at Beth Israel Deaconess Medical Center and an Associate Professor of Medicine at Harvard Medical School.  He completed a residency in internal medicine at Beth Israel Deaconess Medical Center.  After serving as Chief Medical Resident, Dr. Smith completed the Rabkin Fellowship in Medical Education at the Shapiro Institute for Education and Research and Harvard Medical School, and later served as the co-Director of the Fellowship. For 11 years he served as the Director of the Internal Medicine Residency Program at BIDMC, and continues to serve as the Director of the Clinician Educator Track for residents, and Vice-Chair for Education in the Department of Medicine. 

Dr. Smith is the recipient of several teaching awards, including the Herrman L. Blumgart Faculty Award, the Robert C. Moellering, Jr. Award for contributions as teacher, clinician, and researcher, the Society of General Internal Medicine National Award for Scholarship in Medical Education, and the S. Robert Stone Award for Excellence in Teaching at Harvard Medical School.

Dr Chua Chun En is a Consultant in the Division of Advanced Internal Medicine with interests in quality improvement, medical education, and health services research. She has led multiple award-winning projects focused on improving the quality, accuracy, and timeliness of discharge summaries, recognising their importance in patient safety and continuity of care. Building on this work, she has translated her quality improvement initiatives into undergraduate medical education by developing structured teaching programmes in discharge summary writing. She was awarded a teaching grant to further innovate in this area through the integration of artificial intelligence, enabling scalable and high-quality feedback for learners. Dr Chua is also actively involved in health services research, particularly in perioperative medicine, where she is interested in improving care delivery, patient outcomes, and resource utilisation. In recognition of her contributions and potential, she was awarded a Ministry of Health fellowship to pursue further training in the United Kingdom, supporting her continued development in perioperative medicine and health services research.

Dr. Daniel Ricotta is an academic hospitalist at Beth Israel Deaconess Medical Center and Associate Professor in Medicine at Harvard Medical School. He completed his residency training and chief medical residency at BIDMC before pursuing the Rabkin Fellowship in Medical Education, where he implemented a “resident as leader” curriculum. Dr. Ricotta served as an associate director for the internal medicine residency program for a number of years where he developed and oversaw the simulation-based training curriculum. He is currently the Senior Director of the Shapiro Simulation and Skills Center at BIDMC and Associate Director of the Shapiro Institute for Education and Research. Dr. Ricotta is also medical director for a healthcare technology startup developing artificial intelligence tools to support clinical decisions-making. His research focuses on resident leadership development, simulation-based training, and team-work communication.

Adj A/Prof Oon joined the Division of Infectious Diseases in 2010 where she exited from the Advanced Specialist Training in 2013. Her interests lie in general infectious diseases, travel and tropical medicine. She currently serves as Clinical Director for the outpatient parenteral antibiotic therapy (OPAT) and dengue outpatient management (DOM) clinic. She also help set up and run the NUH Travellers’ Health and Vaccination clinic.  

Dr Oon is passionate about medical education and serves in various educational leadership roles as well as national committees on graduate medical education. She is active in teaching learners in both undergraduate and postgraduate medical education, and had served as the Programme Director for the Infectious Diseases Senior Residency Programme from 2017 to 2025. She completed the Master in Healthcare Professional Education (MHPE) with Maastricht University in 2021.

Dr Kristie Fan is a Consultant Gastroenterologist at NUH and Alexandra Hospital, Singapore, with expertise in gastroenterology, hepatology, and nutrition. She manages patients with complex gastrointestinal and nutritional disorders, with a focus on integrating nutrition into digestive disease care.

She is the Undergraduate Education Director at the National University Centre for Digestive Diseases and an Assistant Professor at the Yong Loo Lin School of Medicine, NUS. She is actively involved in curriculum development and clinical teaching.

Her recent educational exposure at BIDMC/Harvard has strengthened her approach to structured residency teaching and clinical reasoning. She is known for her systematic, patient-centred approach, particularly in cases involving the intersection of gastroenterology and nutrition.

Adjunct Associate Professor Low How Cheng is a senior consultant gastroenterologist and Programme Director for the NUH Gastroenterology Senior Residency Programme. He is actively involved in postgraduate medical education, curriculum development, and faculty development.

His teaching philosophy emphasises clinical reasoning, pragmatic thinking processes, and evidence-based decision-making. He has a strong interest in developing structured approaches to diagnosis and management, as well as integrating artificial intelligence tools into clinical education.

Following his recent educational exposure at BIDMC/Harvard, he continues to promote interactive, reflective, and case-based learning in residency training.

Mark Zeidel, M.D., is Herrman L. Blumgart Professor of Medicine at Harvard Medical School and Physician in Chief and Chair of the Department of Medicine at Beth Israel Deaconess Medical Center in Boston. He has made important contributions to our understanding of how water and other small molecules cross biological membranes, how the kidney helps control body chemistry, as well as how the bladder functions to store and void urine, and has led several successful national initiatives in medical education. A national thought leader in quality improvement, he has pioneered the provision of highly reliable, cost-effective care at Beth Israel Deaconess Medical Center (BIDMC), where he helped BIDMC’s achieve of outstanding clinical outcomes, recognized by the American Hospital Association, Society for Critical Care Medicine, the Leapfrog Group, and the Department of Health and Human Services. He has received numerous awards, including election to the American Society of Clinical Investigation and the Association of American Physicians, the Robert H. Williams Distinguished Chair of Medicine Award from the Association of Professors of Medicine and the Robert Narins Award for Medical Education from the American Society of Nephrology.

Martin J. Abrahamson, MD, is Associate Professor of Medicine at Harvard Medical School, Director of the Division of Continuing Medical Education in the Department of Medicine and an active faculty member of the Endocrine Division, Department of Medicine at Beth Israel Deaconess Medical Center in Boston, Massachusetts. He received his medical degree from University of Cape Town in Cape Town, South Africa, and completed his internship, residency and clinical fellowship in internal medicine and endocrinology at Groote Schuur Hospital in Cape Town, where he was a research fellow before joining the faculty of medicine at the University of Cape Town and Groote Schuur Hospital.  Dr. Abrahamson was joint head of the Endocrine Unit in Cape Town before taking up a faculty appointment at Harvard Medical School and Beth Israel Hospital in 1992.  

He joined the faculty at Joslin Diabetes Center in 1998 where he held positions as Chief of Adult Diabetes, Chief Medical Officer and Senior Vice President for Medical Affairs until 2015.  While at Joslin Diabetes Center, Dr. Abrahamson led the reorganization of the Adult Diabetes Section into multidisciplinary teams comprised of physicians, nurse practitioners, nurse educators, nutritionists, and exercise physiologists and spearheaded “pathways of care” for patients referred to Joslin (JoslinCare).  He has co-authored guidelines for the pharmacological and perioperative management of patients with diabetes and management of hyperglycemic emergencies, and authored more than 80 papers, review articles and chapters related to diabetes.  He currently serves as chair of the steering committee for the ASCEND program (Academy for Science and Continuing Education in Diabetes and Obesity), an international CME initiative.

Dr. Abrahamson’s research interests include the management of patients with diabetes, and use of technology to improve diabetes care and outcomes.  Dr. Abrahamson is board certified in endocrinology, diabetes and metabolism, and is a Fellow of the College of Physicians of South Africa.  He has been cited regularly in Boston Magazine as one of Boston’s top doctors, and has delivered numerous invited lectures nationally and internationally on the management of diabetes.  In 2010 he was the recipient of the Samuel Eichold II Memorial Award for contributions to Diabetes from the American College of Physicians.

Dr. Abrahamson has recently co-authored a book on diabetes with Dr. Sanjiv Chopra entitled “Conquer Your Diabetes: Prevention, Control, Remission”.

Within the clinical realm, Shao Feng is an endocrinologist and a firm believer of empowering and supporting patients in their journey of living with chronic metabolic disorders. He completed a clinical fellowship in Andrology in Concord Repatriation General Hospital in New South Wales, Australia in 2016 and holds a special interest in the evaluation and management of male hypogonadism. 

Shao Feng is also an avid educator who currently serves as the Programme Director of the NUHS Internal Medicine Residency Programme. He carries his person-centred approach into the education space and seeks to develop every trainee in a holistic manner. He is also interested in developing clinical reasoning skills and improving assessments in medical education. He completed the Master of Healthcare Professions Education (MHPE) with Maastricht University in 2019.

Dr. Fan is currently Attending Physician and formerly Chief of Rheumatology at West LA VA Medical Center, Los Angeles. He went to medical school in Canada at the University of Manitoba, completed internship and residency in internal medicine at L.A. County-USC Medical Center and fellowship in rheumatology at UCLA School of Medicine. He joined the UCLA faculty in 1976 and has been Clinical Professor of Medicine in the Rheumatology Division since 1991.
In 1981, together with colleagues at UCLA, Dr. Fan reported the first cases of the AIDS syndrome.  He has been visiting professor and lecturer in Finland, Japan, China, Hong Kong, Malaysia, Singapore, Philippines and Thailand.  He is the recipient of awards and honors for teaching, patient care, voluntary services and patient advocacy including the Arnold P. Gold Foundation Humanism in Medicine “Gold Doc” Award in 2013.  In April 2017 his fellow rheumatologists in California honored him with the California Rheumatology Alliance Life Time Achievement Award and in September 2019 the UCLA Division of Rheumatology awarded him the Lifetime Teaching Award for outstanding contributions as noted researcher, clinician and teacher.

Adjunct Associate Professor Sabrina Haroon is a Senior Consultant in the Division of Nephrology at the National University Hospital, where she also serves as Medical Director of the Inpatient Dialysis Center and the Outpatient High Dependency Renal Center. She is the Associate Editor for Artificial Organs  journal and holds a Master of Applied Science in Patient Safety and Healthcare Quality. A dedicated advocate for patient safety, Dr. Haroon is actively involved in advancing quality improvement initiatives within dialysis units and serves as Project Consultant for the Ministry of Health Singapore on Serious Reportable Events. She is currently pursuing a Doctor of Public Health degree in Health Policy and Management at Johns Hopkins University’s Bloomberg School of Public Health, with a focus on patient safety and healthcare quality. 

Sanjiv Chopra, MD, is Professor of Medicine and served as Faculty Dean for Continu­ing Medical Education at Harvard Medical School for 12 years. 
Dr. Chopra has more than 180 publications and sixteen books to his credit. Dr. Chopra is Editor-in-Chief of the Hepatology Section of UpToDate, the most widely used electronic textbook in the world subscribed to by more than 1.5 million physicians in 195 countries.
He is a sought after inspirational speaker across the United States and abroad, addressing diverse audiences on topics related to medicine, leadership, happiness, and living with purpose.

Dr Shoban Krishna Kumar is a Consultant in Intensive Care Medicine at Ng Teng Fong General Hospital. He is actively involved in the care of critically ill patients, with a strong focus on evidence-based practice, patient safety, and multidisciplinary collaboration within the intensive care unit. Shoban has a keen interest in medical education, clinical innovation, and the thoughtful integration of emerging technologies into healthcare. He is involved in teaching, supervision, and simulation-based training, and regularly engages in discussions on how digital health and artificial intelligence can support clinical decision-making, workflow optimisation, and patient-centred care.

Dr Michelle Tan is a clinician–scientist from Changi General Hospital, pursuing a PhD at the Centre for Sustainable Medicine, NUS. Her research focuses on the carbon footprint of hospital acute care pathways and developing practical strategies to drive more sustainable models of care. With a background in anaesthesiology and training in data science and life cycle assessment, she advances the use of carbon analytics to reduce healthcare-related emissions.

Prof A Vathsala graduated with a Bachelor of Science in the Premedical Curriculum from Auburn University, Alabama and studied Medicine at Vanderbilt University School of Medicine, USA. She completed her training in Internal Medicine in Singapore and obtained her Membership in the Royal College of Physicians (United Kingdom). She underwent training in Renal Medicine at the Singapore General Hospital and received a Health Manpower Development Programme scholarship to undergo training in Transplantation at the University of Houston, Texas and the Cornell University School of Medicine, USA. She is a Fellow of the Royal College of Physicians of Edinburgh and a Fellow, Academy of Medicine (Singapore). She has been instrumental in advancing Singapore's renal transplantation program, overseeing significant milestones such as the first spousal kidney transplant in 1991 and the introduction of crossmatch-positive deceased donor kidney transplants in 2007. Under her leadership, NUH performed Singapore's first pancreas-kidney transplant in 2012. She has also held leadership positions in professional organisations, including serving as the founding President of the Society of Transplantation (Singapore) and as President of the Asian Society of Transplantation for two terms. Her significant contributions to medicine have been widely acknowledged through prestigious awards, reflecting her leadership in the field of nephrology and renal transplantation, such as the Master Clinician Award (2025), SMA Merit Award (2023), Distinguished Senior Clinician Award (2018), National Outstanding Clinician Award (2010).

Dr Lee is a Consultant in Rheumatology in the department of Medicine at Ng Teng Fong General Hospital since 2020. She graduated from NUS Yong Loo Lin School of Medicine in 2014, where she received the Feng Pao Hsii Rheumatology Prize. She completed her Internal Medicine Residency and Rheumatology Senior Residency training at National University Hospital. With her clinical expertise in Rheumatology, she currently provides outpatient and inpatient Rheumatology and General Medicine services. Apart from clinical services, Dr Lee participates actively in various education efforts including undergraduate education and guiding junior doctors as a Internal Medicine Residency Core Faculty and Associate Programme Director