Dr Heidi obtained her medical degree from the Philippines at the University of the East- Ramon Magsaysay Memorial Medical Center in 2004. She passed the physician’s licensure examination in the Philippines in 2005. She completed her Paediatric Residency training in 2010 at Philipine Children’s Medical Center.

She joined the Paediatric Medicine Department in KK Women's and Children's Hospital in 2011. In 2014, she started working for the Paediatric Haematology and Oncology department in the same institution. She completed the Diploma in Paediatric Cancer Care in Singapore on June 2019. She became a member of the Royal College of Paediatrics and Child Health (UK) in 2023. She is currently working as a resident physician in Paediatric Haematology and Oncology. She is interested in general paediatric oncology as well as benign and malignant haematological conditions.