Dr Jack Chan is a Senior Consultant Medical Oncologist who practises at NCCS and KKWCH, subspecialising in gynaecological cancers and breast cancer. His research interests are clinical trials in women's cancers, being the Principal Investigator of investigator-initiated and industry-sponsored trials at NCCS.

Dr Chan is active in medical and interprofessional education as well as in professional bodies such as Gynecological Cancer Group Singapore and College of Physicians, Academy of Medicine, Singapore. He serves on the Japanese Society of Medical Oncology's International Steering Committee, and sat on the European Society of Medical Oncology Congress's Scientific Committee and Asian Society of Gynecologic Oncology Meeting's International Scientific Committee in 2024.

Dr Chan has received accolades for his clinical, education and administrative work including Singapore Health Quality Service Awards (Star 2022), Outstanding Faculty Award 2020 and the Commendation Medal (COVID-19).

As an advocate for a personalised approach to cancer care, Dr Chan strives to support patients and their families through the cancer journey by addressing patients' medical needs and quality of life.

Dr Chan concurrently holds the appointment of Chief Quality Officer at NCCS overseeing healthcare quality and patient safety, quality improvement, and patient experience.