Consultant Neurologist at Kedah Medical Centre, Alor Setar, Kedah. Graduated from PPUKM, with MD, and MRCP from Royal College of Edinburg in 2004. He obtained his Fellowship of Neurology from ministry of Health, HKL. He underwent his fellowship in Neurophysiology and Neuromuscular at National Neuroscience Institute, SGH & TTS campus, Singapore. 

Dr Ong Beng Hooi has been actively involved in the setting up of neurophysiology clinical laboratory in Hospital Sultanah Bahiyah and Kedah Medical Centre. His main interest is in neurophysiology and Neuro-diagnostic utility of Transcranial Magnetic Stimulation (TMS) for various neurological disorders. He had published many papers at international level and presented numerous poster and abstract at conferences. He has received numerous invitations to lecture locally. He is also an examiner for the MRCP mock examination from Hospital Sultanah Bahiyah, which held annually and supervises master students from USM & UKM in neurological teaching as part of 2 months attachment since 2012 until 2019. 

He is a life member of Malaysian Society of Neurosciences and was part of the organizing committee member of Neuroscience in year 2008, AOCCN 2020 and has been a regular invited speaker for the neurophysiology chapter in CNNS-MSN from 2012-2025. Currently an editor for Neurology Asia journal and as lead author for recently published MG consensus guideline for Malaysia.