Our Team

Dr Miriam Welgampola

Director, Neuro-otologist

Dr Miriam Welgampola is an Associate Professor of Neurology at the Central Clinical School, University of Sydney and a Senior Staff Neurologist at RPA Hospital. Born in Sri Lanka, Miriam was awarded a Bachelor of Medicine and Surgery MBBS(Hons) in 1994 from the University of New South Wales. Having completed basic physicians training at the Prince of Wales Hospital Randwick, she undertook a PhD in vestibular physiology (1999-2003) and post doctoral research at the Sobell Department of Motor Neuroscience, University College London (2003-2005) and at the Department of Otolaryngology Head and Neck Surgery, Johns Hopkins University (2006). Miriam undertook the Australasian Neurology Fellowship at the National Hospital for Neurology and Neurosurgery, Queen Square, London in 2005.

Miriam's clinical work focuses on ictal assessment of acute vestibular syndromes presenting to the emergency room, early diagnosis of vestibular disorders by event monitoring and treatment of intractable positional vertigo (BPV). Her translational research focuses on “capturing” acute vertigo in the frontline (emergency department and general practice) and Machine Learning applications in Neuro-otology. She supervises six doctoral fellows from the disciplines of Medicine, Nursing, Audiology and Engineering.

Currently active research projects

• Vestibular Event Monitoring in the Emergency Department
  
• Pre- and Post-surgical Vestibular Function in Cochlear Implantation
  
• Using Telehealth and Machine Learning to Optimise Diagnosis of Vestibular Disorders
  
• Defining the Profiles of Common Vestibular Disorders
  
• Exploring Non-Prescription Therapies for Treatment of Vestibular Migraine
  
• Treating Vestibular Failure with Virtual Reality based Rehabilitation

Professional Memberships

• Australian New Zealand Association of Neurology
  
• American Academy of Neurology
  
• Royal Australasian College of Physicians
  
• Neuro Otology Society of Australia
  
• Bárány Society

Dr Benjamin Nham

Neurologist, Neuro-otologist

Dr Benjamin Nham is a Consultant Neurologist and Neuro-otologist. He obtained his Bachelor of Medicine and Surgery from the University of New South Wales with first class honours. He was awarded the James McLeod Advanced Trainee award during his neurology training. After finishing Neurology specialist training at Royal Prince Alfred and Campbelltown Hospitals, he completed a Neuro-otology subspecialty fellowship at Royal Prince Alfred Hospital. He previously worked as a Consultant Visiting Medical Officer at RPA Hospital.

Dr Nham is currently a Consultant Staff Specialist Neurologist at Sutherland Hospital. He completed a PhD in vertigo and dizziness in the emergency setting (2018-2022) at the University of Sydney. He is also an avid teacher and holds clinical lecturer appointments at the University of Sydney and the University of New South Wales.

  Benjamin can also consult in both Cantonese and Mandarin.

Dr Chao Wang

Neurologist, Neuro-otologist

Dr Chao Wang is an Australian-trained Neurologist and Neuro-otologist and a fellow of the Royal Australasian College of Physicians. He obtained his Bachelor of Medicine and Surgery from the University of Sydney. He completed Neurology specialist training at Concord Hospital, Royal Prince Alfred Hospital and Royal North Shore Hospital, followed by a two-year Fellowship in Neuro-otology at Royal Prince Alfred Hospital. His subspecialty expertise is in the diagnosis and management of vertigo and imbalance, but he also enjoys seeing a broad range of neurological conditions.

Chao holds appointments as an Honorary Visiting Medical Officer (Neurology) at Royal Prince Alfred Hospital and Northern Beaches Hospital. In addition to his clinical work, Chao is actively involved in research. He completed his PhD with the University of Sydney in 2025 on the applications of machine learning for the diagnosis of vertigo. He was awarded a Research Scholarship by the Passe & Williams Foundation, and has presented his research at conferences in Australia and overseas.


  Chao can also consult in Mandarin.

Dr Nicholas Yang

Neurologist, Neuro-otologist

Dr Nicholas Yang is a Neurologist with clinical neurophysiology training and a subspecialty interest in neuro-otology. He completed his Undergraduate medical training at Bond University, Gold Coast (2010-2014) and Neurology specialist training at The Northern Hospital, The Alfred Hospital and Royal Hobart Hospital. He gained experience in Neuro-otology during his work at The Alfred Hospital, Melbourne – with Dr Luke Chen and Dr John Waterson. During his time at the Alfred Hospital he helped author a clinical guideline to incorporate the use of video frenzel goggles into the assessment of all patients presenting with vertigo and dizziness to the emergency department. Nicholas is currently completing a PhD at the University of Sydney, which examines the spatiotemporal characteristics of positional nystagmus and aims to use Machine Learning to help differentiate central positional vertigo and benign positional vertigo through their unique nystagmus profiles.

Dr Sally Rosengren

Psychologist, Neuroscientist

Sally Rosengren is a psychologist and neuroscientist with over 20 years experience in vestibular/balance research. In the clinic, she specializes in treating patients with persistent postural-perceptual dizziness (PPPD, or ‘Three PD’). Dr Rosengren obtained her Bachelor of Science (Psychology) from the University of Newcastle in 1999. Following this, she began work in balance research at Prince of Wales Hospital and the University of New South Wales, where she studied vestibular reflexes. She obtained her PhD in vestibular neurophysiology from the University of New South Wales in 2009. Following this, Dr Rosengren completed post-doctoral research on oVEMPs (ocular vestibular evoked myogenic potentials) at the University Hospital Zurich, Switzerland. On her return to Sydney, Dr Rosengren established her research laboratory at Royal Prince Alfred Hospital, where she supervises PhD and Masters scholars from the disciplines of Audiology, Neurology and Otolaryngology. Sally is an Honorary Research Fellow at RPAH and a Conjoint Clinical Senor Lecturer at Sydney University. Her current research interests include the properties of vestibular reflexes, characteristics of vestibular disorders and the cognitive effects of vestibular dysfunction. Alongside her research, Dr Rosengren has maintained a keen interest in psychology and PPPD. She completed a Master of Clinical Neuropsychology at Macquarie University in 2007 and a Graduate Diploma in Counselling at Western Sydney University in 2022.

Dr Naaz Shaikh

Neurological Physiotherapist

Naaz Shaikh is a neurological physiotherapist with over 12 years of clinical experience, with an expanding clinical focus in vestibular rehabilitation and balance disorders. She completed her Bachelor of Physiotherapy at Sardar Patel University in 2009 and a Master of Science in Applying Physiotherapy (Neurology) at Sheffield Hallam University in 2011. She has worked across a range of rehabilitation settings in the UK and New Zealand, supporting individuals recovering from traumatic brain injury, balance impairments, cerebellar dysfunction, and other complex neurological conditions. She obtained her PhD (2019) from Auckland University of Technology, where she investigated community integration in people with acquired brain injury. Alongside her clinical work, Naaz is a Senior teaching and research academic in the Faculty of Medicine at the University of Sydney, where she leads research on the management of vestibular and neurological disorders, falls prevention, recovery after mild traumatic brain injury, and innovative gait and balance measurement methods. She supervises PhD, Master’s, and Honours research scholars from disciplines of physiotherapy, psychology, and computer science focusing on development and implementation of rehabilitation technologies such as virtual and augmented reality, inertia measurement units, and vibrotactile feedback systems.

Professor Denise Taylor

Neurological Physiotherapist

PhD, MSc, Grad Dip Phys

Denise is a Professor of Physiotherapy at Auckland University of Technology (AUT) and is a Co-Director of the New Zealand Dizziness and Balance Centre, maintaining a clinical role as well as leading numerous research projects in the area of vestibular rehabilitation. She is a registered physiotherapist in Australia and New Zealand. She is a Co-Leader of Te Titoki Mataora (NZ’s MedTech research acceleration programme) and represents AUT on the Consortiuum for Medical Device Technologies (CMDT). Her interests are broadly in rehabilitation and specifically in balance, bringing new technologies and treatments to people with neurological and vestibular disorders.

Dr Belinda Kwok

Research Audiologist

Belinda is a clinician researcher and holds a Bachelor in Speech and Hearing Sciences followed by a Master of Clinical Audiology. She gained industry experience working for Cochlear Ltd in both product development and clinical support roles before joining our laboratory where she specialised in clinical vestibular assessment and research. In 2024, she completed her PhD with the University of Sydney, examining the effects of cochlear implantation on vestibular function. Belinda is an all-rounder, with particular expertise in cochlear implant research, evoked potential testing, video head impulse testing and application of novel techniques to aid diagnosis such as vestibular event-monitoring. She is also the Team Leader of Audiology at Westmead Hospital.

Alyssa Dyball

Research Audiologist

Alyssa Dyball is a clinically trained research Audiologist. She graduated with a Bachelor of Psychology with First Class Honours and a Master of Research at Macquarie University. After a gap year in Germany, Alyssa returned to Australia to complete a master’s degree in Clinical Audiology at Macquarie University, where she graduated with the Macquarie University Award for Academic Excellence. She has since worked in both the public and private sector in New Zealand and regional NSW before assuming a position as a Vestibular Audiologist in Sydney. Her PhD will investigate the late components of the oVEMP reflex in a variety of clinical populations where the vestibulo-ocular reflex is affected, including common and rare vestibular disorders both peripheral and central.

Grace Magsombol

Practice Manager

Grace is our senior research and administration officer who has completed a Bachelor of Science in Nursing at Lyceum of the Philippines University. She has since worked as an Emergency Department Nurse and Paediatric nurse in the Philippines and Dubai before joining us. Grace is fun loving, studious and compassionate and enjoys being the in-house geek who fields our technical problems. Her background in nursing and cheery personality ensures our patients are well looked after.

Magdalena Amarilla

Part Time Senior Administrative Assistant

Magdalena, our practice manager, joins us after 16 years as a Medical Secretary at the Neurology Department, RPA Hospital. Having first studied architecture, she also holds a diploma in Front Desk Management and has extensive experience in medical secretarial work. Magdalena is a lover of opera, a seasoned traveller and Tango buff. She brings flair and fun to the work environment while ensuring the smooth running of our busy clinic.

Rhealyn Pascal

Research and Administrator Officer

Rhealyn joins us after completing a Bachelor of Science and Bachelor of Advanced Studies (Honours) at the University of Sydney. With her prior extensive experience as a research assistant in both the United States and Australia, she not only coordinates patient bookings but also plays an active role in assisting with clinical research.

Katheren Papadatos

Administrator Officer

Katheren brings a wide range of experience in keeping corporate offices running like clockwork, with a solid foundation in administrative operations and office management. After several successful years in the corporate world, Katheren transitioned into the medical sector as a Medical Secretary where she has built a strong background in healthcare administration and patient support. Katheren is known for her compassionate, yet professional nature and ensures all our patients feel welcomed and well supported.

Polly Chow

Administrator Officer

Polly joins our team as a Medical Secretary, following a successful career in customer service and retail management. Polly’s problem-solving skills, clear and professional communication combined with a patient-first mindset means both our clinic and patients are well looked after.

Dr Andrew Bradshaw PhD

Engineer / Postdoctoral Researcher

Andrew is a staff Engineer at RPA Hospital. As our engineering collaborator, Andrew has developed innovative software tools for assessing 3D eye movements. He is an expert LabVIEW developer who completed his PhD in three-dimensional temporal bone anatomy in 2013. His current work focuses on the development of new, user-friendly techniques of assessing human balance pathways. Andrew also develops video simulations to facilitate a better understanding of eye movement disorders that accompany vertigo and imbalance. His research topics include eye movement disorders, benign positional vertigo, evoked potentials and superior canal dehiscence.

Cheryl Rivas

It has been over 12 months since Cheryl, our lab manager, left the clinic. Cheryl first trained as a theatre nurse in the Philippines and later turned to medical research and administration at The Balance Clinic. Although currently fully occupied in her work for a busy medical practice elsewhere, Cheryl continues to provide moral support, friendship and mentorship to our clinicians, researchers and administrators.