Dr. Leong received her undergraduate MBBS degree from Yong Loo Lin School of Medicine of the National University of Singapore in 2011. She obtained her Masters of Anesthesiology degree in 2015 and successfully completed her Anaesthesia Residency in 2017. 

Dr. Leong is currently a senior consultant in Anaesthesia and Pain Management. She was awarded the Ministry Of Health (MOH) Human Manpower Development Plan (HMDP) Scholarship in 2020 and completed her Pain Medicine HMDP in Australia. She was admitted to the Fellowship of the Faculty of Pain Medicine, Australian and New Zealand College of Anaesthetists in October 2022, for which she was awarded the Merit Award in the FPM 2020 Examinations. 

Dr Leong is the director of Sengkang Hospital Pain Medicine since December 2020. She practices anaesthesia and pain medicine in both Sengkang and Singapore General Hospital.