Dr Ng Chung Wai, Mark

Dr Ng Chung Wai Mark is a Senior Consultant with SingHealth Polyclinics. Besides general practice, he is Director, Global Health for SingHealth Family Medicine Academic Clinical Program; Associate Program Director and Core Faculty for the SingHealth Family Medicine Residency Program; well as Clinical Tutor for Duke-NUS Medical School. His area of interest in Family Medicine includes Medical Pedagogy, Infection Prevention, Vaccination, Travel Medicine, and Dermatology. He is lead of Infection Prevention and Infectious Diseases Committee for 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. 
• 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).
• Depression in primary care: assessing suicide risk. Ng CWM (First Author), How CH, Ng YP. Singapore Medical Journal, 2017; 58(2).
• Bioaerosol Sampling in Clinical Settings: A Promising, Noninvasive Approach for Detecting Respiratory Viruses. Nguyen TT... Ng CWM, et al. Open Forum Infectious Diseases, 2016; 4(1).
• Major depression in primary care: making the diagnosis. Ng CWM (First Author), How CH, Ng YP. Singapore Medical Journal, 2016; 57(11).
• Vaccination in the primary care setting: when is it safe to proceed? Ngoh HLS, Ng CWM (Last Author). Singapore Medical Journal, 2016; 57(1).
• When babies turn yellow. Ng CWM (First Author), How CH. Singapore Medical Journal, 2015; 56(11).
• Revisiting the Approach to Dengue: The Primary Care Perspective. Ng CWM (First Author). Singapore Family Physician, 2015; 41(2). 
• PILL series. Prescribing health: exercise. Law KH, How CH, Ng CW, Ng MCW (Last Author). Singapore Medical Journal, 2013 Jun; 54(6):303-8. (PMID: 23820539).
• Subclinical thyroid disorders: clinical significance and when to treat. Ng CWM (First Author), et al. Singapore Medical Journal, 2013; 54(7). 
• COPD Management in Primary Care: What Are The Issues And What Can We Do to Provide Optimal Care? Chang CNK, Hii KJ, Chan HHV, CW Ng, NC Tan Singapore Family Physician, 2010 March; 36(1):62. 
• Overuse Sports Injuries: Diagnosis & Management. Ng CW (First Author). Singapore Family Physician, 2004 Oct-Dec; 30(4):62. 
• Cryptococcal meningitis resulting in irreversible visual impairment in AIDS patients--a report of two cases Ng CW (First Author), Lam MS, Paton NI Singapore Medical Journal, 2000 Feb; 41(2):80-2. PMID: 11063209 
• 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. Moey PKS, Ang ATW, Ee AGL, Ng DCC, Ng MCW, Teo SSH, Tay EG, Tan NC. BMJ Open. 2021;11:e049190.
• Approach to the patient with multiple somatic symptoms. Nair SS, Kwan SC, Ng MCW, Teo DCL. Singapore Medical Journal. 2021;62(5).
• National Adult Vaccination Handbook. 2020.
• SingHealth Polyclinics Doctors Guidebook – Infectious Diseases & Vaccination Guide. SingHealth Intranet. 2018.
• Definitive tests for dengue fever: when and which should I use? Chan HBY, How CH, Ng MCW. Singapore Medical Journal. 2017;58(11).
• Depression in primary care: assessing suicide risk. Ng MCW, How CH, Ng YP. Singapore Medical Journal. 2017;58(2).
• Major depression in primary care: making the diagnosis. Ng MCW, How CH, Ng YP. Singapore Medical Journal. 2016;57(11).
• Vaccination in the primary care setting: when is it safe to proceed? Ngoh HLS, Ng MCW. Singapore Medical Journal. 2016;57(1).
• When babies turn yellow. Ng MCW, How CH. Singapore Medical Journal. 2015;56(11).
• Revisiting the approach to dengue: the primary care perspective. Ng MCW. Singapore Family Physician. 2015;41(2).
• Subclinical thyroid disorders: clinical significance and when to treat. Ng MCW, Loo YX, Poon ZM. Proceedings of Singapore Healthcare. 2014;23(3).
• Recurrent wheeze and cough in young children: is it asthma? CME Article. PILL Series. Ng CW, How CH. Singapore Medical Journal. 2014;55(5).
• Childhood vaccination. CME Article. PILL Series. Ng CW, How CH. Singapore Medical Journal. 2014;55(1).
• Prescribing health: exercise. CME Article. PILL Series. Law KH, How CH, Ng CS, Ng CW. Singapore Medical Journal. 2013;54(6).
• COPD management in primary care: what are the issues and what can we do to provide optimal care? Chang NK, Hii KJ, Chan HHV, Ng CW, Tan NC. Singapore Family Physician. 2010;36(1).
• Overuse sports injuries: diagnosis & management. Ng CW. Singapore Family Physician. 2004;30(4).