The Quest Story

Quest Laboratories was formed in 1995, inspired by the vision of establishing itself as a premier laboratory and a preferred partner to clinicians through the delivery of personalised, high quality, and efficient laboratory services. Supported by our state-of-the-art technology with work space in our main facility spanning over 25,000 square feet and equipped with fully automated world-class analysers, Quest is proud to serve clinicians, hospitals, medical centres, and their patients through the deployment of advanced diagnostic testing methods and technology.

Our laboratories adopt gold standard clinical diagnostic technology such as High Performance Liquid Chromatography (HPLC), Enzyme-Linked Immuno Sorbent Assay (ELISA), Chemiluminescence Enzyme Immuno Assay (CLEIA), Polymerase Chain Reaction (PCR), Immunohistochemistry (IHC), flow cytometry, and Inductive Coupled Plasma Mass Spectroscopy (ICP-MS) to carry out high-accuracy tests across a wide range of laboratory medicine including haematology, immunology, clinical chemistry, molecular biology, microbiology, serology, and toxicology.


To establish Quest as the preferred private clinical laboratory in Singapore, providing the most comprehensive, innovative, and responsive services, so as to attain a high level of client satisfaction.


To be a market leader in the private pathology market and to be recognised as the preferred service provider with a reputation for excellence in technical quality and client servicing.



Our Laboratories


Designed to achieve optimal efficiency, Quest’s main laboratory is equipped with state-of-the-art equipment, supported by Siemens Labcell® and Aptio® system to manage high-volume specimen processing.

From the moment a test tube is placed onto the automated specimen track, the Siemens Sample Manager and Aptio® Input-Output Module precisely recognise which analyser to direct the specimen and automatically route it to subsequent analysers for optimal efficiency. This reduces the number of steps required to sort, process, and archive specimens.

Quest has also invested in a Sysmex Haematology Sample Tracking (HST) line that manages thousands of blood specimens daily with minimal human intervention. The automated HST line reduces the occurrence of human error, improves safety and processing speed, while increasing the accuracy of test results.

Always committed to maintaining a robust and advance information technology systems with optimal redundant capacity, maximum system uptime and scalability are achieved so as to best fulfill customers’ needs.

Main Laboratory

Located at StarHub Green in Ubi, Quest’s main laboratory has the largest fully automated sample management system in Singapore with the capability to provide consistently accurate and reliable results.

Satellite Laboratories

Situated within Paragon Medical in the heart of Orchard Road, Quest’s satellite laboratory is strategically located to service the specialist clinics at Paragon Medical, as well as the medical centres at Mount Elizabeth Hospital and Gleneagles Hospital.

Quest also has a second satellite laboratory at Thomson Medical Centre, servicing primarily the hospital and the specialist clinics in the fields of obstetrics, gynaecology, and paediatrics located at the centre.


Jessica Chua
Chief Executive Officer

Dr Tan Hong Wui
Medical Director / Pathologist

Dr Ivy Chew

Yap Kwee Chuah
Head, Laboratory

John Lee
Head, Laboratory

Low Chin Keong
Deputy Head, Laboratory

Clarice Long
Head, Sales & Marketing

Janet Lye
Head, Operation

Arnel Sotiangco
Head, Quality Management

Katrina Kwok
Manager, Pathology

Stephanie Pattiselanno
Head, Corp & Marketing Comm

Michael Chai
Head, IT

Cody Ng
Head, Finance

Adeline Seow
Head, HR & Admin



Since its inception in 1985, Healthscope has grown to become one of Australia’s largest providers of integrated healthcare. Working cohesively within the respective local medical communities to offer innovative services, Healthscope plays a vital role in promoting the health and well-being of Australians.

Healthscope has a presence across every state in Australia, operating over 4,800 inpatient beds in 45 hospitals. An uncompromising focus on high quality clinical outcomes, systems, processes, staff and facilities has propelled Healthscope to its position of industry leadership, thrusting it to the forefront of quality and innovation in healthcare.

Internationally, Healthscope is a leader in the pathology business in New Zealand, Singapore, and Malaysia, with an expanding presence in Vietnam. 

Accreditations & Certifications

Uncompromising on quality. Advancing public health.

Licensed by the Ministry of Health, Singapore, under the Private Hospitals and Medical Clinics Act 1980 (Chapter 248) , Quest Laboratories is the first full-service private medical laboratory in Singapore to have attained dual accreditation for quality management that is internationally recognised.

Quest’s main laboratory at StarHub Green and its satellite laboratory at Paragon Medical have been accredited by both the College of American Pathologists (CAP), as well as the Singapore Accreditation Council through the Singapore Laboratory Accreditation Scheme (SAC–SINGLAS ISO 15189:2012) in 2015 and 2008 respectively.

Quest’s CAP accreditation applies to the following areas:

  • Haematology
  • Endocrinology
  • Toxicology
  • General Chemistry
  • Microbiology (Include molecular microbiology and infectious disease serology)
  • Trace Metals
  • Anatomical Pathology
  • Calibration Verification / Linearity Program
  • Reproductive Medicine
  • Coagulation
  • Immunology
  • Transfusion Medicine (ABO Grouping and Rh Typing)
  • Viral Markers

Under the Health Promotion Board’s (HPB) Screen for Life programme, Quest attained the status of a certified laboratory for CervicalScreen Singapore in 2004, and since 2016, Quest has also been certified to process Faecal Immunochemical Test samples as part of the National Colorectal Cancer Screening Programme. To become a certified service provider in these HPB initiatives, Quest had to meet a set of stringent quality criteria for colorectal and cervical cancer screening respectively, achieved through regular audits that evaluated the competence of the laboratory in performing the relevant tests.

With these multiple accreditations and certifications, Quest is at the forefront of the private pathology business in Singapore and is a strong advocate of public health.

Royal College of Pathologists of Australasia (RCPA)

  • Chemistry
  • Endocrinology
  • Immunology
  • Serology
  • Microbiology
  • Tumour Markers

National Proficiency Testing Scheme for Malaria Parasite and Acid Fast Bacilli
National Proficiency Testing Scheme for HIV
National Proficiency Testing Scheme for ABO Group & Rhesus
External Quality Assurance Program for Metals in Biological Matrices by Toxicology Centre of Quebec (CTQ) and the German External Quality Assessment Scheme (G-EQAS) for Analyses in Biological Materials

  • Aluminium
  • Zinc
  • Arsenic
  • Cadmium
  • Copper
  • Lead
  • Manganese
  • Mercury
  • Nickel
  • Selenium
  • t,t-muconic acid

Quality Policy

–   Quality of the highest standard


–   Unique and unparalleled


–   Ethical in laboratory practices at all times


–   Service that is cost-effective and value-added


–   Technological excellence in all disciplines