Dr Lee Shir Ying is a senior consultant haematologist at the Division of Haematology, Department of Haematology-Oncology, NCIS and Department of Laboratory Medicine, NUH. After receiving her undergraduate medical degree from the National University of Singapore in 2002, she trained in internal medicine and obtained her membership to the Royal College of Physicians of the United Kingdom in 2006. She undertook her specialty training in haematology under the Joint Commission of Specialist Training Singapore. In 2012, she obtained fellowship of the Royal College of Pathologist of the United Kingdom.

She is currently a teaching core faculty with the National University Health System Haematology Fellowship Programme and Assistant Professor in the Department of Medicine of the Yong Loo Lin School of Medicine. She also leads the Patient Blood Management subcommittee of NUH. Her clinical and research interests are in anaemia and red cell disorders, venous thrombosis, transfusion medicine, and diagnostic haematology including flow cytometry.