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About Us

Corporate Profile

Who We Are

National Healthcare Group Diagnostics (NHG Diagnostics) is a clinical shared service of Population Health Campus, the National Healthcare Group.

Founded in 2000, we are a leading provider of one-stop imaging and laboratory services in primary healthcare in Singapore.

Traditionally, imaging and laboratory services were available mainly in hospitals only. We are here to bring these services to your neighbourhood or even your doorstep.

We provide a comprehensive range of diagnostic services such as:

  • General X-ray
  • Mammogram
  • Bone Mineral Densitometry (BMD)
  • Ultrasound
  • Laboratory Testing
  • Phlebotomy
  • Home Phlebotomy
  • Spirometry
  • Electrocardiography (ECG)
  • Workplace Health Screening
  • Teleradiology Reporting
  • Management of 
    Radiology Clinics and Clinical Laboratories 

You can find us in more than 20 imaging centres, laboratories and a fleet of mobile service vehicles in Singapore.

Our customers include:

  • Polyclinics
  • Community Hospitals
  • General Practitioners
  • Nursing Homes
  • Homecare Providers
  • The Community

Our Vision, Mission & Core Values

Our Vision

Adding years of healthy life

Our Mission

To be the provider of choice for laboratory and imaging services that are Accessible, Timely, Cost effective, Accurate and Seamless

Our Core Values

People Centredness

We value diversity, respect each other and encourage joy in work


We commit ourselves to the highest standards of ethical conduct


We care with love, humility and empathy


We are responsible for the care of our people, patients and population

Our Commitment to Quality Service​​

We aim to provide quality service to meet the requirements of our customers by ensuring:

  • Accurate, prompt and timely service delivery
  • Commitment to continuously improve our management system
  • All our employees are competent through continuous training

Our professional accreditations include:

Screen For LifeThe mammogram service in all our screening centres at polyclinics and Mammobus are under the national screening programme Screen For Life and accredited by the Health Promotion Board.

ISO 15189:2012 for medical testing Our laboratories are ISO 15189 accredited for meeting the quality standards and technical competency requirements in the field of medical testing.

ISO 15189:2012 for medical imaging Our radiography services are ISO 15189 accredited for meeting the quality standards and technical competency requirements in the field of medical imaging.

Our Leadership Team

Ms Lim Soh Har

Executive Director

Ms Lim Soh Har is the Executive Director of the National Healthcare Group Diagnostics (NHGD). She joined NHGD, a leading provider of imaging and laboratory services in primary healthcare, as its General Manager in 2011, and assumed her current positon as Executive Director in 2015.

As Executive Director, Ms Lim drives the transformation of diagnostics delivery to support partners in primary care and community, to care for their patients/clients from living well to leaving well. The collaborations span across public, private and people sectors.

Ms Lim has over 19 years of experience in healthcare administration and operations, in acute and primary healthcare settings. She has served in various public healthcare institutions including the National University Hospital (NUH), National Healthcare Group Headquarters (NHG HQ), Institute of Mental Health (IMH) and NHG Diagnostics (NHGD). Prior to rejoining healthcare in 2011, Ms Lim was the Head of Operations at the Singapore Botanic Gardens from 2007 to 2011.

Ms Lim received her Bachelor of Business Administration (BBA) from the National University of Singapore (NUS) in 1989. She completed the MOH Health Manpower Development Program (HMDP) Scholarships in 2005 and 2015, at The Wharton School of the University of Pennsylvania USA and at INSEAD Singapore respectively.

Dr Tyrone Goh

Senior Director & Clinical Advisor
  • Chief, Allied Health and Pharmacy, National University Hospital (NUH)
  • Advisor, Allied Health Council, National University Health System (NUHS)
  • CEO, NUH Referral Laboratory (NRL)
  • Member of the Dental Council's Disciplinary Committee, Ministry of Health (MOH) 

Dr Tyrone Goh is a Fellow of the United Kingdom College of Radiographers and the Australian Institute of Radiography.

He has a Master of Business Administration from Henley Management School, United Kingdom and a Doctor of Science (Hon) from the London South Bank University (LSBU). He is also a visiting fellow of LSBU and past president of the International Society of Radiographers.

With over 40 years of experience in healthcare, he has overseen various planning and operational aspects of hospital management, particularly in the areas of allied health and medical imaging.

Dr Goh's major projects included managing the National University Hospital's (NUH) Department of Diagnostic Imaging, providing a turnkey solution for NUH's $25 million Radiotherapy Centre, setting up the $4.5 million Shaw-NKF Children's Kidney Centre at NUH, as well as revamping the administrative support for the Cancer Institute, Emergency Department and Children's Medical Institute. ​

A/Prof Wong Moh Sim

Clinical Advisor, Laboratory
  • Head and Senior Consultant Chemical Pathologist, Department of Laboratory Medicine, Khoo Teck Puat Hospital
  • Deputy Chairman (Clinical Quality and Medical Manpower), Medical Board, Khoo Teck Puat Hospital and Yishun Health
  • Deputy Group Chief Quality Officer, National Healthcare Group (NHG)

Associate Professor Wong Moh Sim graduated from the University of Leicester in UK and is a Fellow of the Royal College of Pathologists (UK) in Chemical Pathology and the Royal College of Pathologists of Australasia. She holds a Master of Health Science (Management) degree from the University of Sydney, Australia.

She currently serves on various committees, including the Singapore Association of Clinical Biochemists (SACB), Health Sciences Authority External Quality Assessment Programme in Clinical Chemistry, and the Ministry of Health National Quality Council.

Her clinical interest is diabetes mellitus and she runs clinic sessions at the Diabetes Centre.

A/Prof Robert Hawkins

Clinical Advisor, Laboratory
  • Senior Consultant in Chemical Pathology, Department of Laboratory Medicine, Tan Tock Seng Hospital
  • Visiting Consultant, KK Women’s and Children’s Hospitals
  • Adjunct A/Prof and Lead for Chemical Pathology, Lee Kong Chian School of Medicine

Associate Professor Robert Hawkins has intensive experience in Chemistry since his appointments in New Zealand and Malaysia in 1993.

He received his MBChB from The University of Auckland in 1986, Postgraduate Diplomas in Health Management in 1996 and Health Informatics in 2004, Master in Information Science from the University of Otago in 2007 and Research MD from The University of Auckland in 2011.

In addition, he attended the fellowship of Royal College of Pathologist of Australasia (RCPA) in 1992 and Academy of Clinical Biochemistry (FACB) in 2000, and was elected to the Fellowship of the Faculty of Science of RCPA in 2012. He also served as President of the Singapore Society of Pathology and Vice-President of the Singapore Association of Clinical Biochemists.

He has published over 60 scientific articles and reviews, as well over 100 abstracts at various scientific meetings. His interest in pre-analytical quality, laboratory statistics and evidence-based laboratory contributes significantly to the field of laboratory medicine.

Adjunct A/Prof Chong Bee Kiang

Clinical Advisor, Radiology
  • Senior Consultant, Diagnostic Radiology, Tan Tock Seng Hospital (TTSH)
  • Divisional Chairman, Ambulatory & Diagnostic Medicine, TTSH
  • Member of the Clinical Board and Quality Council, TTSH
  • Co-chairman of the Technology Assessment Committee and member of the Civil Emergency Council
  • Clinical Director of BreastScreen Singapore (BSS) reading and assessment centres at TTSH
  • Lead Assessor for BSS, Health Promotional Board (HPB)
  • Adjunct A/Prof, Lee Kong Chian School of Medicine
  • Senior Clinical Lecturer, Yong Loo Lin School of Medicine, National University of Singapore (NUS)
  • Faculty member for BSS Mammography Education Programme for Radiographers in Health Promotional Board and Final MMed (Diagnostics Radiology) Exam Preparatory course in NUS
  • Member of the Exit Examination Committee for Diagnostic Radiology Residency under the Radiology Advisory Committee, Ministry of Health

Adjunct Associate Professor Chong Bee Kiang received her Bachelor of Medicine and Bachelor of Surgery from NUS, and is a Fellow of the Royal College of Radiologists in UK, and Fellow of the Academy of Medicine in Singapore.

She completed her HMDP fellowship in Breast Imaging at the University of California in San Francisco and Hospital of the University of Pennsylvania in Philadelphia, United States; and the HMDP administrator award under the Stanford-NUS Executive Program.

With over 25 years of experience in Radiology, she has specialised in Breast Imaging and Intervention with contributions in many presentations at various conferences as invited speaker and publications in local, regional and international journals.

A/Prof Quek Swee Tian

Clinical Advisor, Radiology
  • Head, Department of Diagnostic Imaging, National University Hospital (NUH)
  • Head, Department of Diagnostic Radiology, NUS
  • Clinical Director, BreastScreen Singapore programme, NUH
  • Executive Committee Member of the National Cancer Institute of Singapore (NCIS), Working Committee of Western Cancer Action Network (We-CAN), Clinical Department Mortality and Morbidity Quality Assurance Committee
  • Chair of the Radiation Safety Committee, NUH

Associate Professor Quek Swee Tian graduated from the National University of Singapore (NUS) and obtained the Fellowship of the Royal College of Radiologists in 1995 before undergoing further training in the United Kingdom (UK).

His interest in medico-legal and professional matters has seen him appointed a member of the Singapore Medical Council’s Complaints and Disciplinary Committee, a Senior Advisor to the NUH Medical Board to assist in medico-legal issues, as well as a member of the Standing Committee on Continuing Professional Development, Academy of Medicine.

In education, he is a member of the Specialist Training Committee and Residency Advisory Committee for Diagnostic Radiology, an examiner in the MMed (Diag Rad) / FRCR examinations and an external examiner in the Indonesian National Board Examinations.

He has published on various topics in radiology and authored/co-authored a number of book chapters. He sits on the editorial board of several journals and has been invited to speak at numerous international conferences.