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Neuropsychiatry
Prof. Dr. Mark Waterfang
Senior Consultant Neuropsychiatrist from Royal Melbourne Hospital
Professor Mark Walterfang is a consultant psychiatrist and neuropsychiatrist with over 20 years of expertise in neuropsychiatry. He is a Clinical Professor at the University of Melbourne and has published over 200 papers on neuroimaging, neurometabolic disorders, and neurodegenerative diseases. He has contributed to Kaplan and Sadock's Comprehensive Textbook of Psychiatry and is a recognized international speaker in his field.
Dr. Chee Kok Yoon
Consultant Neuropsychiatrist from Kuala Lumpur Hospital
Dr. Chee Kok Yoon, Head of Neuropsychiatry at the Ministry of Health Malaysia, is a leading expert in neuropsychiatry and neuromodulation, pioneering specialized services nationwide. With a focus on traumatic brain injury (TBI) and functional disorders, he has played a key role in advancing diagnosis and treatment. His contributions to the field have earned him the title of Distinguished Fellow by the Pacific Rim College of Psychiatrists.
A/Prof. Dr Samantha Loi
Senior Consultant Neuropsychiatrist from Royal Melbourne Hospital
Dr. Samantha Loi is an Associate Professor at the University of Melbourne and a Consultant Neuropsychiatrist at the Royal Melbourne Hospital. Specializing in young-onset dementia and neuropsychiatric disorders, she has 120+ publications and over $15M in research funding. She leads the Joint Solutions project and BeYOND study, serves as Deputy Head of Psychiatry, and advocates for women in psychiatry.
Dr. Damidhu Eratne
Consultant Neuropsychiatrist from Royal Melbourne Hospital
Dr. Dhamidhu Eratne is a neuropsychiatrist specializing in younger-onset dementia and biomarkers. He graduated from the University of Auckland and completed his psychiatry fellowship in 2016. He is a clinical and research fellow at the MiND Study, focusing on neurodegenerative and psychiatric disorders. He also holds honorary fellowships at the Walter and Elizabeth Hall Institute and the University of Melbourne, contributing to research, teaching, and supervision.
Dr. Wendy Kelso
Senior Consultant Neuropsychologist from Royal Melbourne Hospital
Dr. Wendy Kelso is the Clinical Lead in Neuropsychology and Coordinator of Neuropsychology Services at The Neuropsychiatry Centre, Royal Melbourne Hospital, Australia. With over 20 years of experience in Neuropsychiatry, she specializes in the diagnosis and management of atypical dementias, with a strong focus on supporting family caregivers. Her translational research spans cognition and behavior, dementia biomarkers (NfL), teleneuropsychology, metabolic disorders, Huntington’s disease, and Young Onset Dementia. Dr. Kelso is committed to professional education and training, providing programs for healthcare professionals and organizations. She facilitates Carer Support Groups for families affected by frontotemporal dementia.
Dr. Kenny Ong Kheng Yee
Consultant Neuropsychiatrist from Kuala Lumpur Hospital
He graduated from International Medical University (IMU), Seremban in 2002. Melbourne. Subsequently, he attained his Master of Medicine (Psychiatry) from Universiti Sains Malaysia, Kubang Kerian in 2012, and Fellowship in Neuropsychiatry from Royal Melbourne Hospital, Melbourne, Australia in 2016. His special interests include young onset dementia, neuromodulation therapies and administrative psychiatry.
Dr. Mohammad Nabhan Khalil bin Azizan
Consultant Neuropsychiatrist from Sultanah Nur Zahirah Hospital
A highly qualified neuropsychiatrist based in the East Coast of Malaysia. He received his MD degree from Universiti Kebangsaan Malaysia in 2005 and later completed his MMed (Psych) at Universiti Sains Malaysia in 2015. In addition, he completed his neuropsychiatry subspecialty training at HKL and the Royal
Melbourne Hospital and returned to Malaysia in 2022.
Dr. Chhoa Keng Hong
Consultant Neuropsychiatrist from Sarawak General Hospital
Dr. Chhoa Keng Hong, a consultant neuropsychiatrist, leads the expansion of neuropsychiatry services in Sarawak after completing subspecialty training at Hospital Kuala Lumpur and Royal Melbourne Hospital. A pioneer in northern Sarawak, his extensive experience across Malaysia has shaped his expertise in patient-centered, multidisciplinary care. Passionate about neuroscience, he actively contributes to research, collaborating on numerous local and international publications. Beyond clinical neuropsychiatry, neuromodulation, and sleep medicine, he is a dedicated educator, training undergraduate and postgraduate students in psychiatry and neuropsychiatry.
Dr. Siti Nor Fadhlina Misron
Neuropsychiatrist from Permai Hospital and
Adjunct lecturer of Monash University Malaysia
Dr. Siti Nor Fadhlina Misron is a distinguished neuropsychiatrist at Hospital Permai, Johor, and holds the distinction of being the second female neuropsychiatrist in the Ministry of Health Malaysia. She earned her MMed (Psych) in 2016 and completed an esteemed neuropsychiatry fellowship at the Royal Melbourne Hospital in 2023. Dr. Misron has contributed significantly to the field with multiple publications on neuropsychiatry, particularly in the areas of ECT and the neuropsychiatric effects of COVID-19. She is also a respected peer reviewer and is currently authoring a book on EEG interpretation for ECT practice.
Dr. Chin Han Lim
Consultant Neuropsychiatrist from Raja Permaisuri Bainun Hospital, Ipoh
Dr. Chin Han Lim is a neuropsychiatrist with a Medical Degree (MD) from USM and a Masters of Psychological Medicine (MPM) from UM. He completed his Neuropsychiatry Subspecialty training in 2024 after serving in Borneo for 2.5 years. Dr. Lim is known for his research in neurodegenerative diseases and cognitive disorders, contributing to national and international conferences. He is an active member of several professional societies and is recognized for his leadership and compassionate approach to patient care.
Dr. Mohamad Iqbal Mohaini
Consultant Neuropsychiatrist from Hospital Sungai Buloh
Dr. Mohamad Iqbal bin Mohaini is a neuropsychiatrist who obtained his MBBS from Universiti Malaya in 2010 and MMed (Psychiatry) from UiTM in 2018. After serving for 2.5 years in Sabah, he pursued his passion for neuropsychiatry and completed his subspecialty training in 2024. With expertise in cognitive disorders and neuropsychiatric conditions, Dr. Iqbal is committed to advancing the understanding and treatment of neurological and psychiatric comorbidities.
Dr. Sivenanthini A/P Purana Visvanathan
Consultant Neuropsychiatrist
Dr. Sivenanthini is a Malaysian neuropsychiatrist with over a decade of experience in clinical and community psychiatry. She earned her MBBS from Manipal University in 2008 and her Master of Psychological Medicine (MPM) in 2019. Since 2022, she has been actively managing neuropsychiatry patients during her subspecialty training in Malaysia, with expertise in neuromodulation therapy and caregiver support. Her clinical interests include organic psychiatry, traumatic brain injury, and neurodegenerative disorders.
Dr. Chong Siew Koon
Clinical Fellow in Neuropsychiatry | Kuala Lumpur General Hospital
Dr. Chong Siew Koon, a clinical fellow in neuropsychiatry, earned his Master’s in Psychiatry from UKM in 2020 and trained at Hospital Kuala Lumpur. His research focuses on digital mental health and brain-computer interfaces. Notable projects include using VR for anxiety treatment (with NIH) and studying EEG delta wave changes in mindfulness, aromatherapy, and psychospiritual practices (with NIOSH & Unisza).
Dr. Chee Jiunn Heng
Clinical Fellow in Neuropsychiatry | Royal Melbourne Hospital
Dr. Chee Jiunn Heng is a psychiatrist and neuropsychiatry fellow at The Royal Melbourne Hospital. He obtained his MBBS from the International Medical University (IMU) in 2014 and became a Member of the Royal College of Psychiatrists (MRCPsych, UK) in 2020. With experience in multiple Malaysian hospitals, he specializes in neuropsychiatric illnesses, younger-onset dementia, and functional neurological disorders. Dr. Chee has been actively involved in research, education, and mental health advocacy.
Neurology
Dr. Lim Thien Thien
Consultant Neurologist | Island Hospital, Penang
Dr Lim Thien Thien is currently a Consultant Neurologist working in Island Hospital, Penang. He graduated from University Malaysia Sarawak (UNIMAS) in 2002. Subsequently, he obtained his Membership Royal College of Physicians (MRCP) in the United Kingdom(UK) in 2007. He was awarded the Fellowship in Parkinson's disease and Movement disorders from Cleveland Clinic, United States of America, in 2012. He has done numerous research and written many articles in journals and book chapters in Movement Disorders. Dr Lim is currently the Chairman of the Movement Disorder Council Malaysia.
Dr. Linda Then Yee Yen
Consultant Neurologist | Neurology Unit, Department of Internal Medicine, Sarawak General Hospital
Dr. Linda Then Yee Yen is a clinical neurologist with subspecialty training in stroke, neurophysiology, epilepsy, and Botox injection. She completed her Fellowship in Neurology (Malaysia) in 2020 and Stroke Fellowship at NNI in 2019. Dr. Then has received several accolades, including the Tan Sri Datuk Amar Dr. Sulaiman Hj. Daud Award for Excellence in Surgery (2008) and two Anugerah Perkhidmatan Cemerlang awards from the Sarawak Health Department. She has published numerous articles in neurology and neurosurgery journals and is involved in research trials, including studies on Parkinson’s disease, stroke, and multiple sclerosis
Dr. Benjamin Ng Han Sim
Consultant Neurologist | Neurology Unit, Department of Internal Medicine, Sibu Hospital
Dr. Benjamin Ng Han Sim is a consultant neurologist and Head of Unit at Sibu Hospital. A top graduate of Universiti Malaysia Sabah, he holds FRCP (UK), fellowship training in epilepsy as well as an international sleep disorders specialist awarded by World Sleep Society. Malaysia’s first neurologist with RPSGT and CCSH credentials, he is an active member of global neurology and sleep societies. Beyond clinical work, he is an adjunct lecturer at Segi College Sibu and UNIMAS, with interests in acute neurology and sleep medicine.
Neurosurgery
Mr. Lim Swee San
Consultant Neurosurgeon | Department of Neurosurgery, Sarawak General Hospital
Mr. (Dr.) Lim Swee San is a Consultant Neurosurgeon specializing in Functional Neurosurgery and Pain Management. With over a decade of experience, he completed fellowships at Siriraj Hospital, Thailand, and Aesculap Academy, India. His expertise includes Deep Brain Stimulation, epilepsy surgery, and facial pain treatment, with a growing focus on functional neurosurgery for psychiatric disorders. Actively involved in national surgical safety and mortality review initiatives, he advocates for high standards in surgical care. Beyond medicine, he enjoys sport fishing in remote and deep-sea locations.
Nuclear Medicine and Neuroradiology
Dr. Kamalia binti Kamarulzaman
Consultant Nuclear Medicine Physician | Kuala Lumpur Hospital
Dr. Kamalia Binti Kamarulzaman is a Consultant Nuclear Medicine Physician specializing in Nuclear Neurology at Hospital Kuala Lumpur and a Clinical Lecturer at Universiti Sains Malaysia. She holds a Master’s in Nuclear Medicine and a Fellowship in Nuclear Neurology from Asan Medical Center, South Korea. An expert in advanced hybrid imaging for neurodegenerative disorders, epilepsy, and tumors, she is an active member of WARMTH and MSNMMI. With multiple publications and conference presentations, she also serves as a reviewer for oncology and imaging journals.
Prof. Dr. Ahmad Tirmizi bin Jobli
Senior Consultant Neuroradiologist | Head of Department of Radiology, Faculty of Medicine and Health Sciences, UNIMAS
Prof. Dr. Ahmad Tirmizi bin Jobli, a consultant radiologist at Sarawak General Hospital, specializes in neuroimaging. He holds an MD (UNIMAS), a Master’s in Radiology (UKM), and trained in advanced neuroimaging at UCLH, London. A pioneer of Sarawak’s first functional MRI for awake brain surgery and Deep Brain Stimulation Surgery, he advances neuro-radiological services. His research focuses on deep learning and image segmentation, with multiple publications and frequent talks in neuroradiology.