Dr Ng Chung Wai, Mark

Dr Ng Chung Wai, Mark is a Senior Consultant at SingHealth Polyclinics. Besides general practice, he is the Associate Programme Director and Core Faculty for the SingHealth Family Medicine Residency Programme, as well as Clinical Tutor at Duke-NUS Medical School. His areas of interest in Family Medicine include Medical Pedagogy, Infection Prevention, Vaccination, Travel Medicine, and Dermatology. He is the lead of Infection Prevention and Infectious Diseases Committee at SingHealth Polyclinics.

• Dip Fam Practice Dermatology (2012) 
• FCFP (2004)
• MMed(Family Medicine) (2001)
• MBBS (1996)    

•  Chair, SingHealth Polyclinic Infection Prevention & Infectious Diseases Committee
• Co-Lead, SingHealth Polyclinics Enterprise Risk Management – Disease Outbreak and Pandemic Preparedness 
• Alternate Chair, SingHealth Hand Hygiene Workgroup 
• Associate Program Director, SingHealth Family Medicine Residency Program 
• Chair, Clinical Competency Committee, SingHealth Family Medicine Residency Program
• Co-chair, Dental Sterile Supplies Taskforce, and Member, SingHealth Sterile Supplies Council
• Key Appointment Holder (Global Health), SingHealth Family Medicine Academic Clinical Program 
• Member, SingHealth Covid-19 Registry Steering Committee 
• Member, SingHealth Infection Prevention Network 
• Member, Singapore General Hospital Campus Disease Outbreak Taskforce 
• Member, SingHealth Infection Prevention Workgroup 
• Member, SingHealth Polyclinics Serious Reportable Events Quality Assurance Committee 
• Member, SingHealth Polyclinics Mortality & Morbidity Quality Assurance Committee
• Member, National Antimicrobial  Stewardship Expert Panel (NASEP) 
• Member, Ministry of Health, Singapore.  Expert Committee on Immunisation (ECI)

• ​Acute gastroenteritis in adults. Tay WL, Ng CWM (Last Author) Singapore Medical Journal, 2026. (PMID: 40833757). 
• The skinny on 'keto': the low-carb, high-fat diet everyone is talking about. Ch'ng WXM, Ng CWM (Last Author). Singapore Medical Journal, 2025 May; 66(5):278-282. (PMID: 40384147). 
• Skin and soft tissue infections in primary care. Ling JY, How CH, Chien JMF, Poulose V, Ng CWM (Last Author). Singapore Medical Journal, 2025 Feb; 66(2):108-113. (PMID: 39961091). 
• Singapore tuberculosis (TB) clinical management guidelines 2024: A modified Delphi adaptation of international guidelines... [Committee Authors including Ng CWM]. Singapore Medical Journal, 2024. (PMID: 38920244). 
• Smoking cessation in primary care. Lua YHA, How CH, Ng CWM (Last Author). Singapore Medical Journal, 2024 Jan; 65(1):38-44. (PMID: 38212983). 
• Prevalence and healthcare utilization in managing herpes zoster in primary care: a retrospective study in an Asian urban population. Chan XBV, Tan NC, Ng CWM, et al. Frontiers in Public Health, 2023.
• COVID-19: Effectiveness of Triage at Primary Care Ambulatory Clinics for Early Detection and Segregation of Covid-19-Infected Patients. Goh ZY, Ng CWM, Lee CWE, Tan NC (Last Author). Singapore Medical Journal, 2023. 
• Pandemic preparedness in the primary care setting: A systems-based approach and lessons from the COVID-19 pandemic. Goh ZY, Ng CWM, Tan NC. Frontiers in Public Health, 2022 Jul; 10:946059. (PMID: 35891312). 
• The Implementation and Impact of a Revised National Childhood Immunization Schedule in an Urban Asian Community Tan NC, Tan Q, Aau WK, CWM Ng (Last Author),  
• Vaccines (Basel). 2022 Jul 19;10(7):1148. doi: 10.3390/vaccines10071148. PMID: 35891312; PMCID: PMC9319496. 
• Approach to the patient with multiple somatic symptoms. Nair SS, Kwan SC, Ng CWM, Teo DCL. Singapore Medical Journal, 2021; 62(5). 
• What are the measures taken to prevent COVID-19 infection among healthcare workers? A retrospective study... Moey PKS... Ng CWM, et al. BMJ Open, 2021; 11(66). 
• Definitive tests for dengue fever: when and which should I use? Chan HBY, How CH, Ng CWM (Last Author). Singapore Medical Journal, 2017; 58(11). 
• Managing depression in primary care. Ng CWM (First Author), How CH, Ng YP. Singapore Medical Journal, 2017; 58(8). 
• MCW Ng, How CH, Ng YP. Depression in primary care: assessing suicide risk. Singapore Medical Journal. 2017; 58(2)
• MCW Ng, How CH, Ng YP. Major depression in primary care: making the diagnosis. Singapore Medical Journal. 2016; 57(11)
• Ngoh HLS, Ng MCW. Vaccination in the primary care setting: when is it safe to proceed? Singapore Medical Journal. 2016; 57(1)
• MCW Ng, How CH. When babies turn yellow. Singapore Medical. 2015; 56(11)
• MCW Ng. Revisiting the Approach to Dengue: The Primary Care Perspective. Singapore Family Physician. 2015; 41(2)
• MCW Ng, YX Loo, ZM Poon. Subclinical Thyroid Disorders: Clinical Significance and When to Treat. Proceedings of Singapore Healthcare. 2014; 23(3)
• CW Ng, CH How. Recurrent wheeze and cough in young children: Is it asthma? CME Article. PILL Series Singapore Medical. Singapore Medical Journal. 2014; 55(5)
• CW Ng, CH How. Childhood Vaccination. CME Article. PILL Series Singapore Medical Journal. Singapore Medical Journal. 2014; 55(1)
• KH Law, CH How, CS Ng, CW Ng. Prescribing Health: exercise. CME Article. PILL Series Singapore Medical Journal. Singapore Medical Journal. 2013; 54(6)
• NK Chang, KJ Hii, HHV Chan, CW Ng, NC Tan. COPD Management in Primary Care: What are the issues and What can we do to provide optimal care? Singapore Family Physician. Singapore Family Physician. 2010; 36(1)
• Ng CW. Overuse Sports Injuries: Diagnosis & Management Singapore Family Physician. Singapore Family Physician. Oct-Dec 2004; 30(4)
• CW Ng, Mun San Lam, Nick I J Paton. Cryptococcal Meningitis Resulting in Irreversible Visual Impairment in AIDS Patients - A Report of Two Cases Singapore Medical Journal. Singapore Medical Journal. 2000; 41(2)
• Moey PKS, Ang ATW, Ee AGL, Ng DCC, Ng MCW, Teo SSH, Tay EG, Tan NC. What are the measures taken to prevent COVID-19 infection among healthcare workers? A retrospective study in a cluster of primary care clinics in Singapore. BMJ Open. 2021;11:e049190.
• Nair SS, Kwan SC, Ng MCW, Teo DCL. Approach to the patient with multiple somatic symptoms. Singapore Medical Journal. 2021;62(5).
• National Adult Vaccination Handbook. 2020.
• SingHealth Polyclinics. Doctors Guidebook – Infectious Diseases & Vaccination Guide. SingHealth Intranet; 2018.
• Chan HBY, How CH, Ng MCW. Definitive tests for dengue fever: when and which should I use? Singapore Medical Journal. 2017;58(11).
• Ng MCW, How CH, Ng YP. Depression in primary care: assessing suicide risk. Singapore Medical Journal. 2017;58(2).
• Ng MCW, How CH, Ng YP. Major depression in primary care: making the diagnosis. Singapore Medical Journal. 2016;57(11).
• Ngoh HLS, Ng MCW. Vaccination in the primary care setting: when is it safe to proceed? Singapore Medical Journal. 2016;57(1).
• Ng MCW, How CH. When babies turn yellow. Singapore Medical Journal. 2015;56(11).
• Ng MCW. Revisiting the approach to dengue: the primary care perspective. Singapore Family Physician. 2015;41(2).
• Ng MCW, Loo YX, Poon ZM. Subclinical thyroid disorders: clinical significance and when to treat. Proceedings of Singapore Healthcare. 2014;23(3).
• Ng CW, How CH. Recurrent wheeze and cough in young children: is it asthma? CME Article. PILL Series. Singapore Medical Journal. 2014;55(5).
• Ng CW, How CH. Childhood vaccination. CME Article. PILL Series. Singapore Medical Journal. 2014;55(1).
• Law KH, How CH, Ng CS, Ng CW. Prescribing health: exercise. CME Article. PILL Series. Singapore Medical Journal. 2013;54(6).
• Chang NK, Hii KJ, Chan HHV, Ng CW, Tan NC. COPD management in primary care: what are the issues and what can we do to provide optimal care? Singapore Family Physician. 2010;36(1).
• Ng CW. Overuse sports injuries: diagnosis & management. Singapore Family Physician. 2004;30(4).
• Ng CW, Lam MS, Paton NIJ. Cryptococcal meningitis resulting in irreversible visual impairment in AIDS patients: a report of two cases. Singapore Medical Journal. 2000;41(2).