Associate Professor & Senior Consultant, Head, Dept of Otolaryngology Head & Neck Cancer Group Head, National Cancer Institute of Singapore
A/Prof Thomas Loh Kwok Seng
Dr Loh graduated from the Faculty of Medicine, National University of Singapore. He underwent residency in Otolaryngology at the National University Hospital and subsequently trained in Head and Neck Cancer Surgery at the Princess Margaret Hospital and Toronto General Hospital in Canada. He is currently a Senior Consultant and Head of Department of Otolaryngology Head & Neck Surgery. His practice is in Head and Neck Oncology. Dr Loh is also the Leader of Head & Neck Tumour Group at the National Cancer Institute of Singapore as well as its Deputy Director (Clinical).
Dr Loh manages patients with head and neck tumours. His practice is mainly in patients with cancers of the oral cavity, pharynx, larynx, thyroid and other sites. The majority of his cancer patients have nasopharyngeal carcinoma (NPC), the most common head and neck cancer in Singapore. He leads the Head and Neck Tumour Board, where radiation and medical oncologists, together with surgical oncologists, decide on the stage and the treatment for the cancer patients. Dr Loh performs surgery of the thyroid gland and parotid salivary gland and other major complicated surgery to treat cancers of the oral cavity, pharynx and larynx. Where it is suitable, he also treats cancer of the larynx using laser surgery. Dr Loh also performs complicated tumours of the anterior skull base, or tumours at the junction just below the brain.
Dr Loh is the Head of Department and leads a large group of specialists as well as research staff in the department. He also mentors a constant stream of elective students from overseas ranging from Australia to England, Netherlands and Germany, just to name a few. Dr Loh is a member of the Residents Advisory Committee that oversees the Otolaryngology specialty in Singapore. He was awarded the Yong Loo Lin School of Medicine Faculty Teaching Excellence Award and the NUS University Teaching Excellence Award in 2006 in recognition of his contribution to medical undergraduate teaching in NUS. He has also been awarded post graduate teaching excellence awards in 2011, 2012 and 2015.
Dr Loh is also active in research. His main research is in the area of early diagnosis on NPC. His research is focused on a screening programme for first-degree relatives of NPC patients. He has published widely with the majority centred on nasopharyneal carcinoma.
He is a senior advisor for risk management and is the chair of the operating room committee at NUH.
Prof Wang De Yun
Research Professor, Director of Research
Dr Wang De Yun
Prof Wang De Yun is currently Research Professor (Tenure) and Director of Research, Department of Otolaryngology at the National University of Singapore, and Director of Research of the National University Health System (NUHS). He completed his medical undergraduate studies in 1981 in China. He trained and practised as an ENT surgeon in China until his appointment as research associate at the ENT department of the Free University of Brussels (AZ–VUB, Belgium) in 1989. He obtained his PhD Degree in Medical Sciences (Free University Brussels, VUB) in 1995 and was appointed Director of Rhinology and Clinical Immunology Research at the Department of Otorhinolaryngology, University of Ghent, Belgium from 1996-1997. Prof Wang started as Research Scientist at the Department of Otolaryngology, National University of Singapore in 1997. He was appointed to his current position as Research Professor in July 2015.
Prof Wang has published over 200 papers (with a total impact factor of over 600) in prestigious medical journals and 30 book chapters, and has been invited to give more than 400 lectures at scientific meetings worldwide. He is the Associate Editor (Allergy, Therapeutics and Clinical Risk Management, and Military Medical Research) and a member of the editorial boards of more than twenty journals in ENT, allergy and medical sciences. He is a member of expert committees for several international and European guidelines and consensus report in allergic rhinitis and rhinosinusitis, e.g., European White Paper in Allergy, WHO Initiative – Allergic Rhinitis and its Impact on Asthma (ARIA 2001 and ARIA 2008), and European Position Paper on Rhinosinusitis and Nasal Polyps (EPOS, 2007, 2012).
Prof Wang received the Sam Sanders Basic Science Award given by the American Academy Otolaryngic Allergy (AAOA) in 2003, and the Faculty Research Excellence Award 2012 (Basic Scientist) given by the Yong Loo Lin School of Medicine, National University of Singapore. He is currently the Vice President of the Beijing Ear Nose and Throat College since 2004, and Visiting Professor of the Capital University of Medical Sciences (Beijing), Zhongshan University (Guangzhou), Peking Union Medical College hospital (Beijing), Shandong University (Jinan), Qingdao University (Qingdao), Beijing Shijitan Hospital in China, and a Clinical Professor of Medical Colleague of Korea University. He is also the Coordinator for Asia-Oceania for the Global Allergy and Asthma European Network (GA2LEN).
His research interests include rhinology; allergy and clinical immunology; role of inflammatory cells, mediators and cytokines in allergic rhinitis, chronic sinusitis and nasal polyposis; investigation of genetic and epigenetic mechanisms in inflammatory nasal diseases; efficacy of different anti-allergic drugs in treatment of allergic rhinitis; allergen specific immunotherapy; physiological and immunological functions of the nose; immunological function of the tonsil; implication of computational fluid dynamics (CFD) in study of aerodynamics, and nasal epithelial stem cell research.
A/Prof Loh Woei Shyang
Associate Professor & Senior Consultant
A/Prof Loh Woei Shyang
Dr Loh is a Senior Consultant in the Department of Otolaryngology - Head and Neck Surgery at the National University Hospital, Singapore. Dr Loh obtained his medical degree from the National University of Singapore. He started his residency in Otolaryngology in Singapore in 1998 and was elected a Fellow of the Royal College of Surgeons of Edinburgh in Jan 2000. He went on to complete his residency in 2003 and continued to pursue a fellowship in Paediatric Otolaryngology in The Children’s Hospital in Denver, Colorado, USA.
He is currently an ENT surgeon (Senior Consultant) in the National University Hospital.
Dr Loh is trained in all aspects of paediatric otolaryngology with special interests in otological disorders, airway and speech disorders in children. He also has extensive experience in cleft lip and palate management. Dr Loh also consults on adult ENT problems. He recently pioneered sialendoscopy in the department to better manage benign salivary gland diseases.
Dr Loh is an Associate Professor at the National University of Singapore involving in undergraduate and post-graduate teaching. He is also a Member of Master of Medicine (Otolaryngology - Head and Neck Surgery) Examination Committee. His research area is mainly pediatric otological problem as well as biofilm infection in ENT. One of his most recent grants is "Comparing Biofilm in nasal cavity and sinuses in chronic rhinosinusitis “prospective controlled study”.
Dr Raymond Ngo
Assistant Professor & Senior Consultant Programme Director (Postgraduate)
Dr Raymond Ngo
Dr Raymond Ngo graduated in 1995 from the Trinity College Dublin, Ireland with 2nd class honours in Medicine. His internship was done in St James Hospital, Ireland. After completion of his National Service, he was accepted into the National Specialty Training programme for Otolarynogology. His degrees include the MRCS in General Surgery from the Royal College of Surgeons Edinburgh, the MMed and FAMS in Otolarynology with the Graduate Medical School, National University Singapore. He completed his Fellowship in Otology - Neurotology at the St Paul's Hospital & Vancouver General Hospital, Canada under Dr Brian Westerberg and Dr Neil Longridge.
Dr Ngo has a subspecialty practice in middle ear surgery for infections and hearing loss, cochlear implantation, lateral skull base surgery, facial nerve disorder and vestibular diagnosis and treatment.
He is an Assistant Professor with the National University of Singapore, involved in the teaching of medical undergraduates. He is the Postgraduate Director for the Department of Otolaryngology - Head & Neck Surgery, NUHS and supervises the continuous medical education for junior doctors. Dr Ngo is the lead for the NUHS Graduate Medical Education Committee Faculty Development Subcommittee. He is a member of the JCST Panel of Site Accreditors and a committee member of the Chapter of Otorhinolaryngology, College of Surgeons
Dr Mark Thong
Assistant Professor & Senior Consultant Deputy Director Clinical Services Director of Undergraduate Education
Dr Mark Thong
Dr Thong graduated from the Faculty of Medicine, National University of Singapore in 1996. After completing his Otolaryngology residency in Singapore in 2006, he proceeded onto subspecialty training in Rhinology and Sinus Surgery as a clinical fellow at the Lahey Clinic, Massachusetts, USA. He is currently a Senior Consultant with the National University Hospital.
Apart from treating general ear, throat and neck conditions, Dr Thong's particular area of specialty is that of the nose and sinus (eg nasal allergy, nasal obstruction, nose bleeding, sinus infections, sino–nasal polyps and skull base tumours). He performs various procedures and operations, either in the clinic or in the operating theatre. These include endoscopic sinus surgery, as well as minimally invasive sinus surgery (ie "balloon sinuplasty"). His other area of interest is patients with snoring and obstructive sleep apnea, tailoring their treatment accordingly (eg U3P, tongue base coblation).
His research similarly revolves around sino-nasal conditions (especially nasal polyps and chronic sinusitis), and snoring and obstructive sleep apnea (running clinical trials since 2011 to develop better ways of monitoring such patients).
Dr Thong also an assistant professor with the Yong Loo Lin School of Medicine, National University of Singapore, where he is involved in teaching medical undergraduates, mentoring junior doctors, and delivering lectures or being a surgical instructor at local or regional conferences. He is currently the Director of Undergraduate Education for Otolaryngology.
Dr Ong Yew Kwang
Assistant Professor & Senior Consultant
Dr Ong Yew Kwang
Dr Ong Yew Kwang is a Senior Consultant in the Department of Otolaryngology - Head & Neck Surgery in NUH. His subspecialty is in rhinology and endoscopic skull base surgery.
Dr Ong obtained his MBBS (Honours) from Trinity College Dublin, Ireland in 1998. He entered Otolaryngology training in Singapore in 2002, during which he obtained the Diploma in Otolaryngology Head & Neck Surgery (DOHNS)(Lon), MRCS (Edin) and Master of Medicine (ORL). He completed his training in 2008 and was a gold medalist in the exit examination.
In 2009, he pursued a year of clinical fellowship in endoscopic skull base surgery at the University of Pittsburgh Medical Centre under Dr Carl Snyderman and Dr Ricardo Carrau. His training was in complex sinus and skull base surgeries in collaboration with neurosurgeons. Following that, he also spent a mini-fellowship in functional rhinoplasty under Dr Yong Yu Jang at Asan Medical Center, Seoul.
Dr Ong is currently the co-leader of the endoscopic skull base service with the neurosurgeons, which specialises in the management of skull base lesions including pituitary adenomas, craniopharyngiomas, meningiomas, chordomas and extensive sinonasal tumours. To date, he remains the only fellowship-trained skull base surgeon in Otolaryngology in Singapore. He collaborates with the oculoplastic team in endoscopic lacrimal and thyroid ophthalmopathy surgeries. He also has an interest in minimally invasive surgery of the head and neck, such as endoscopic-assisted thyroidectomy and tongue base surgery for obstructive sleep apnoea. He is a Visiting Consultant to Changi General Hospital and Ng Teng Fong General Hospital for his expertise in endoscopic skull base surgery.
Dr Ong is an Assistant Professor at the Yong Loo Lin School of Medicine, and is actively involved in undergraduate and postgraduate ENT training. He is a core faculty member of the NUH ENT ACGME program. He has taught in both local and regional conferences in sinus and skull base surgeries and has published in peered-reviewed journals.
Dr Lim Chwee Ming
Assistant Professor & Senior Consultant
Dr Lim Chwee Ming
Dr Lim graduated from the Faculty of Medicine, National University of Singapore in 1998. He underwent residency in Otolaryngology in Singapore and was awarded the Gold medal for the MRCS (Edinburgh) General Surgery examination in 2003 and subsequently the Gold medal award by the College of Surgeons for the best performing resident in the exit examination organized by the Specialist Training Committee in Otolaryngology in 2009.
After completing his specialist training, he joined the Department of Otolaryngology – Head and Neck Surgery as a Consultant. He started his practice and pursued further training in head and neck oncologic surgery at the National University Health System, Singapore. In 2010, he was awarded the Ministry of Health Overseas Training award and pursued a 2 year Head and Neck Oncologic Fellowship at the University of Pittsburgh Medical Center in the United States of America. This fellowship is accredited by the Advanced Training Council of the American Head and Neck Society.
During these 2 years, Dr Lim did translational benchwork research in immunotherapy in head and neck cancer, focusing of immunological mechanisms in monoclonal antibody based therapy in cancer and identifying novel immune modifiers in cancer therapy. In his clinical training, he was trained in transoral robotic surgery (TORS), minimally invasive video assisted thyroidectomy (MIVAT) and minimally invasive approaches in head and neck surgery, in addition to the major head and neck resections. Upon his return to Singapore in 2012, he was appointed Consultant at the Department of Otolaryngology-Head and Neck Surgery and Assistant Professor at the Yong Loo Lin School of Medicine.
His awards included the National Healthcare Group Clinical Research Scientist Leadership Award, best oral presentation for the Pitch for fund award and NHG Clinician scientist bronze award. He is the principal investigator in several grants looking at human papillomavirus in head and neck cancer and immune adjuvant in monoclonal antibody based therapy in head and neck cancer. In 2011, he was awarded the New Investigator Grant by the National Medical Research Singapore. In the area of research in robotic surgery, Dr Lim is actively collaborating with the academic staff from the Faculty of Engineering National University of Singapore and was the co-PI evaluating the key technologies for minimally invasive robotics surgery and navigation. Dr Lim has published in book chapters and numerous peered reviewed journals.
Dr Ng Li Shia
Assistant Professor & Consultant
Dr Ng Li Shia
Dr Ng Li Shia graduated from the Faculty of Medicine, National University of Singapore in 2006. As an undergraduate, she was awarded the Otolaryngology Society book prize in 2005. Dr Ng started her training in Otolaryngology under the National Specialty Training program in 2008. Her degrees include the MRCS in General Surgery from the Royal College of Surgeons Glasgow and the Masters of Medicine in Otolaryngology with the Graduate Medical School, National University Singapore.
She is currently a Consultant with the Department of Otolaryngology - Head and Neck Surgery, at the National University Hospital. After completing her specialist training, Dr Ng received the Academic Medicine Development Award (AMDA) in 2014 to subspecialize in Asian facial plastic and reconstructive surgery. She was a clinical fellow at the Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital in Taiwan from 2015-2016. Her interests are in functional septorhinoplasty, ear and nasal reconstruction. Dr Ng also provides outpatient, as well as surgical care for general ear, throat and neck conditions.
In the area of research, Dr Ng actively collaborates with the School of Design and Environment, National University of Singapore, in the field of surgical technology and design, as well as the Department of Anatomy, Yong Loo Lin School of Medicine, in the field of medical education.
Dr Ng is also an Assistant Professor with the Yong Loo Lin School of Medicine, NUS and is actively involved in the teaching of medical undergraduates, as well as mentoring of junior doctors and residents in the department. She previously served as the Deputy Director of Undergraduate Medicine for Otolaryngology, NUS.
Dr Tay Sok Yan
Instructor & Associate Consultant
Dr Tay Sok Yan
Dr Sok Yan Tay, Annabelle graduated with Bachelor of Medicine and Bachelor of Surgery from the Yong Loo Lin School of Medicine, National University of Singapore (NUS) in 2007. As a medical student, she was awarded the Jane Prize in Paediatrics in 2006. She completed her residency in Otolaryngology and was accredited as a Specialist in Otorhinolaryngology (ENT) by the Singapore Medical Council and Specialist Accreditation Board in 2014. Following the completion of the surgical specialty examinations, she was admitted as a fellow to the Royal College Of Surgeons, Glasgow in 2010.
Dr Tay completed her USMLE exams (Step 1 to Step 3) and received ECFMG certification in 2015. She was awarded an Academic Medicine Development Award (AMDA) in 2015 for a Pediatric Otolaryngology Fellowship and spent a year (2016-2017) in the renowned Texas Children’s Hospital in the United States of America as a clinical fellow in their American ENT Board Accredited Pediatric Otolaryngology Fellowship Program.
She is trained in both routine and complex surgical procedures specializing in paediatric ear problems and hearing loss - such as cochlear implants, bone anchored hearing aids, ossicular chain reconstruction, tympanomastoidectomy, endoscopic ear surgery, otoplasty and auricular reconstruction surgery. She has been trained to perform both open and endoscopic airway reconstruction surgery (Laryngotracheal reconstruction) for children with congenital and acquired airway stenosis and disease. She also manages paediatric snoring issues, sinus and allergy disease, voice problems, dysphagia, salivation problems (Sialorrhea) and pediatric head and neck tumours.
Dr Tay joined the faculty in 2014. In 2015, she led the Paediatric ENT residency teaching program. She enjoys teaching and has mentored multiple medical students and residents. She has published consistently in peer-reviewed scientific journals and had presented her research in both regional and international meetings. She enjoys working on quality improvements projects to improve the care her patients receive. At the moment, she is actively involved in paediatric tracheostomy care quality improvement in NUH.
Dr Donovan Eu graduated from the National University of Singapore, Yong Loo Lin School of Medicine in 2010. He attained membership to the Royal College of Surgeons, MRCS (Glasgow) and subsequently commenced subspecialty training in Otolaryngology and Head and Neck Surgery with the National University Hospital Residency Program. On completion of his residency training, he was conferred his Masters of Medicine in Otorhinolaryngology and was thereafter accepted to the specialist registration.
Dr Eu is an Associate Consultant with the National University Hospital Department of Otolaryngology – Head and Neck Surgery. While he manages most ear, nose and throat conditions, Dr Donovan Eu’s key interest is in head and neck surgery. This includes the management of neck lumps and cancers of the head and neck.
Dr Eu actively participates in research and has presented his works at several international Otolaryngology meetings, such as the World Chinese Otorhinolaryngology – Head & Neck Surgery Conference and the American Head and Neck Society International Conference of Head and Neck Cancer.
In addition to research, Dr Donovan Eu actively participates in education and has been involved in several of the undergraduate teaching initiatives by the National University Singapore Medical School. Dr Eu also continues to provide post-graduate teaching for doctors and residents in ENT and has also authored in a renowned otolaryngology textbook.
Dr. Goh obtained his medical degree from the Yong Loo Lin School of Medicine, National University of Singapore in 2010. He started his residency training the ACGME-I accredited National University Health System ENT residency program in 2012. He obtained the postgraduate qualifications of Member of the Royal College of Surgeons (Ireland) in 2012, as well as the Masters of Medicine in Otolaryngology-Head and Neck Surgery in 2014. He completed his residency training in 2017, serving as the National ENT Chief Resident in his final year of training.
Dr. Goh is currently appointed an Associate Consultant in the Department of Otolaryngology – Head and Neck Surgery, National University Hospital, Singapore.
Dr. Goh is trained in all aspects of the surgical and medical management of general Otolaryngology-Head and Neck Surgery conditions and has a special interest in managing diseases of the ear and hearing restoration.
In the area of research, Dr. Goh's research interests are varied and include research into optimal monitoring of obstructive sleep apnea (OSA) patients after surgery as well as prognostic factors affecting management of thyroid cancers, and has presented in multiple local, regional and international conferences.
Besides performing clinical work, Dr. Goh is active in teaching and mentoring of medical students and junior doctors, and firmly believes in the Hope for a Better Age.
Dr Crystal Cheong graduated from Monash University, Australia, and proceeded on to pursue her passion for Otolaryngology by qualifying to be a Member of the Royal College of Surgeons (Edinburgh) in 2011 and obtaining her Master of Medicine (Otolaryngology) in 2014.
In 2012, Dr Cheong joined the residency training with the National University Health System, Singapore. She was later appointed to an Associate Consultant in the Department of Otolaryngology – Head & Neck Surgery, National University Hospital after the completion of her residency training. While Dr Cheong specialises in general Ear, Nose and Throat conditions, her special interest lies in snoring and obstructive sleep apnoea. Dr Cheong also enjoys teaching and is a clinical lecturer with the Yong Loo Lin School of Medicine, National University of Singapore.
Dr Ker Liang graduated from the Yong Loo Lin School of Medicine, National University of Singapore in 2009. She was invited to participate in the Otolaryngology Society book prize in 2009 as an undergraduate. Dr Ker Liang started her training in Otolaryngology under the ACGME-I Residency Training in Otorhinolaryngology (Singapore) in 2011. Her degrees include the MRCS in General Surgery from the Royal College of Surgeons Edinburgh and the Masters of Medicine in Otolaryngology with the Graduate Medical School, National University Singapore.
Dr Ker Liang is currently an Associate Consultant with the Department of Otolaryngology - Head and Neck Surgery, at the National University Hospital. Dr Ker Liang provides outpatient, as well as surgical care for general ear, throat and neck conditions. Her interest include Minimal Invasive Surgical techniques ie: endoscopic and robotic-assisted surgery.
Dr Ker Liang enjoys teaching and is a clinical educator with the Yong Loo Lin School of Medicine, NUS. She is actively involved in the teaching of medical undergraduates, as well as postgraduate junior doctors and residents in the department. She is currently enrolled in the CenMED Faculty Development Program to hone her skills as a clinical educator.
In the area of research, Dr Ker Liang collaborated with the School of Design and Environment, NUS, to produce a working myringotomy model. This myringotomy model provides the junior doctors with increased opportunities in learner-centric stimulator training, which results in enhanced patient safety when performing such procedures. Dr Ker Liang is currently working to develop this myringotomy model further, to allow for a broader application of this practise-based learning.
Susan J.Rickard Liow PhD
Associate Professor, Programme Director for M.Sc (Speech & Language Pathology
Susan J.Rickard Liow PhD
After a PhD in Cognitive Neuropsychology (London University), Susan trained and worked as a Clinical Psychologist in the National Health Service (NHS) and she is a registered practitioner with the UK Health and Care Professionals Council http://www.hpc-uk.org . From 1987, she taught undergraduate modules in abnormal and cognitive experimental psychology, and supervised research on language representation (Mandarin, Malay and English) in the Department of Psychology (NUS). Her clinical work with preschool children and brain-damaged adults led her to develop the M.Sc (Speech & Language Pathology) Programme http://www.med.nus.edu.sg/dgms/SLP/home.html in the Yong Loo Lin School of Medicine. Since her appointment as Programme Director in 2007, Susan has supervised a wide range of postgraduate projects relevant to local evidence-based practice for speech-language pathologists. Her main research interests are normal and abnormal language processes in bilingual children and adults, including dyslexia, aphasia and dementia. Most of her recent publications involve work on spelling skills.
William Hal Martin PhD
Professor, Director of the Audiology MSc Programme,Co-Director of Dangerous Decibels
William Hal Martin PhD
Billy Martin has a wide range of clinical and research interests spanning the fields of physics, hearing, neuroscience and population health. His training in the University of California system included audiology, speech science, linguistics, electrical engineering, medicine, neuroscience and computational physics. This was followed by a post doctoral fellowship at the Technion-Technical Institute of Israel in auditory neurophysiology. From 1997 to 2013 Billy was a multi-program director in the Oregon Health & Science University Oregon Hearing Research Center where he oversaw the OHSU Tinnitus Clinic, tinnitus research, intraoperative neurophysiological monitoring and the Dangerous Decibels international noise induced hearing loss and tinnitus prevention program with materials now in 40 countries. He is currently professor of Otolaryngology at the National University of Singapore where he directs the M.Sc. graduate training program in Audiology and continues as co-director the Dangerous Decibels. Billy has authored or co-authored has over 650 scientific publications and/or presentations across his fields of interest. Presently, his research projects examine community based hearing loss and tinnitus prevention in Native American/Alaska Native children, the neurobiology of deafness, hearing health promotion in Southeast Asia/Pacific Islands and the medical economics of hearing loss. He is also a member of the National University Hospital Audiology staff, where he provides expert care for individuals suffering from tinnitus and sound tolerance disorders. In his free time he is an avid surfer and coaches the NUS men’s and women’s water polo teams.