• Pakar dalam keadaan ortopedik pediatrik dan perkhidmatan pembinaan semula anggota badan dewasa

• Minat subkepakaran dalam teknik pembinaan semula anggota badan untuk pesakit pediatrik dan dewasa menggunakan teknik Ilizarov

• Anatomy lecturer in University of Glasgow 1994-1995
• Basic Surgery training in Glasgow teaching hospitals 1995- 1998, passed FRCS (Glasgow) in 1998.
• Post doctorate research fellow in Total Knee and Hip joints replacement, Department of Orthopaedic, Unvierstiy of Leicester 1999-2001, awarded MD degree by University of Leicester in 2005.
• Specialist Orthopaedic training in Newcastle and Nottingham 2002-.2008. During this period, Dr Ong passed the FRCS(T & O) examination. On completion of 6 years of Orthopaedic and Trauma training, Dr Ong was awarded CCT by the UK Joint Committee on Surgical Training.
• Fellowship in paediatric orthopaedic and limb reconstruction in Sheffield Children’s Hospital, 2007- 2008.
• Consultant Orthopaedic and Trauma Surgeon (Paediatric & Adult), Kings Mill Hospital, Nottinghamshire and Sheffiled Children’s Hospital 2008 - 2012.
• Consultant Orthopaedic and Trauma Surgeon with a specialist interest in paediatric orthopaedic, Queens Medical Centre, University of Nottingham, 2012-2014.
• Private practice as Consultant Orthopaedic Surgeon at The Park Hospital, BMI Healthcare, Nottingham, 2010-2014.

• University of Glasgow (MBChB)
• University of Leicester (DM)

• British Orthopaedic Association (Fellow)
• British Society for Children's Orthopaedic Surgery
• British Limb Reconstruction Society

• Best Clinician Young Investigator / Research awarded by British Orthopaedic Research Society - 2001
• Pfizer Academic Travel Award 2002 - 2003
• East Midlands Orthopaedic research meeting winner 1999 & 2001
• Undergraduate:

Merit in Physiology and Clinical Pharmacology awarded by University of Glasgow

• Full registration GMC UK
• Speciality registry GMC UK and CCT (Orthopaedic)