Meet Our Doctors
Our doctors have extensive experience in treating Sleep and Respiratory disorders. SomaHealth Sleep & Respiratory is there to help you sleep better and breathe better.
A/Prof Anthony Byrne | MBBS, BAppSc, MIPH, FRACP, PhD
Specialist Respiratory (Thoracic) Physician
Associate Professor Anthony Byrne is an experienced Respiratory Physician (Pulmonologist) and Researcher that is highly respected locally and internationally. He obtained his initial Bachelor of Applied Science through the University of Sydney prior to completing his medical degree at the same University. He continued his postgraduate studies by obtaining a Master of International Public Health and then working as a Junior Medical Officer.
In 2017, A/Prof Byrne completed his doctoral studies on the chronic respiratory sequelae of Mycobacterium tuberculosis (TB) with research in Peru. He works as a thoracic physician and is rapidly developing a national and international reputation in chronic respiratory disease related to TB and more recently, COVID-19. In the last ten years he has published over 40 peer-reviewed papers in journals such as the Lancet, Lancet Global Health, International Journal of COPD, International Journal of TB and Lung Disease and Respirology. He has also been invited to speak at several educational and scientific meetings including Harvard Medical School in Boston, the Asia Pacific Conference of the Union Against Tuberculosis and Lung Disease and the NSW Tuberculosis Advisory.
Through his training, A/Prof Byrne has developed sound skills in the practice of respiratory medicine. He has extensive experience with assessing sleep disorders, tuberculosis, chronic respiratory disease, asthma and advanced lung disease.
A/Prof Byrne currently works as a Senior Staff Specialist in Thoracic Medicine at St Vincent’s public and private hospitals and is practicing as a Respiratory Physician at St Vincent’s Clinic in Sydney and SomaHealth Sleep & Respiratory. He is a Cochrane author and associate editor for “Cochrane Clinical Answers” and an Associate Professor of Medicine (conjoint) at the University of New South Wales. He is a member of the NHRMC Tuberculosis Centre of Research Excellence, the International Union Against Tuberculosis and Lung Disease and Harvard Medical School of Global Health and Social Medicine Tuberculosis Research Group. A/Prof Byrne is also the newly elected President of the NSW branch of the Thoracic Society of Australia and New Zealand.
Dr James Di Michiel | MBBS BSci BCST FRACP
Specialist Respiratory and Sleep Physician
Dr James Di Michiel obtained a Bachelor of Science through the University of Sydney, after which undertaking a Bachelor of Medicine and Bachelor of Surgery at University of Notre Dame Sydney from 2007 – 2011. Following completion of his medical degree Dr Di Michiel soon became a resident medical officer at Royal Prince Alfred, St George and Sutherland Hospitals in Sydney.
Dr Di Michiel completed his Respiratory Specialist training at Concord and St Vincent’s hospitals, having significant exposure to many subspecialty areas including airways disease, bronchiectasis, pleural disease, interventional pulmonology and lung transplantation. He was awarded the Tracey Robinson award for the best original project by a Respiratory Trainee for work in primary ciliary dyskinesia and bronchiectasis, and is continuing research via a Masters of Medicine in the area of Sleep Medicine.
In the last six years he has published 4 papers, 5 research presentations as well as guest speaking at several hospitals and universities nationally and internationally. In 2019, Dr Di Michiel was admitted in the Royal Australasian College of Physicians specialising in Respiratory and Sleep Medicine.
Areas of special interest include airways disease and bronchiectasis, sleep apnoea, respiratory failure and interventional pulmonology. Dr Di Michiel also has special interest in international health having spent time working and performing medical research in the developing countries of Papua New Guinea and the Solomon Islands.
Dr Corinna Pan | MBBS BMedSci FRACP
Specialist Respiratory and Sleep Physician
Dr Corinna Pan obtained her Bachelor of Medicine, Bachelor of Surgery and Bachelor of Medical Science from the University of Melbourne after which she became a resident medical officer at Royal North Shore Hospital.
Specialising in Respiratory and Sleep Medicine with sub-specialty interests in respiratory failure and palliative care medicine, specifically in advanced lung disease and motor neuron disease (MND). She is an integral part of the renowned MND multidisciplinary team headed by Professor Dominic Rowe at MQ Health, and regularly offers her expertise in respiratory failure management.
Dr Pan also subspecialises in a range of neurological and non-neurological sleep disorders such as parasomnias, narcolepsy/cataplexy, restless leg syndrome, obstructive/central sleep apnoeas, insomnia and circadian disorders. She also manages common respiratory conditions such as asthma, COPD, interstitial and occupational lung diseases and bronchiectasis. She is skilled with bronchoscopy, complex lung function and sleep study interpretation.
After completing her specialist training at Royal North Shore Hospital, Concord Repatriation General Hospital and St Vincent’s Public Hospital, Dr Pan has previously consulted at St Vincent’s Public Hospital and currently consults at Sutherland Hospital, and is pioneering the development of a Respiratory Supportive Care Clinic at Sutherland Hospital for patients with advanced lung disease and respiratory failure. She is also currently completing a MPhil looking to research new models of care for breathlessness.
She enjoys mentoring physician trainees and medical students, and holds a Conjoint Lecturer position with the Department of Clinical Medicine at Macquarie University. She is committed to integrating multidisciplinary chronic care and research translation into clinical practice and teaching.
Dr Pan is also a native speaker of Mandarin.
Dr. Xiao Hu | MBBS FRACP
Respiratory & Sleep Physician
Dr Xiao Hu obtained her Bachelor of Medicine from from the University of New South Wales in 2010, completing Respiratory advanced training in 2017 and Postgraduate Sleep and Respiratory Failure at Westmead Hospital in 2019.
Dr Hu has worked as Staff Specialist at Nepean Hospital and Westmead Hospital, and is currently a Visiting Medical Officer at Canterbury Hospital. Her special interests are in complex Sleep Disorders and Airways Disease. With a special interest in Sleep Apnoea research, Dr Hu has several publications, two of which are associated with REM-related obstructive sleep apnoea. She has also presented numerous scientific research articles at Sleep and Respiratory Conferences.
Dr Hu is also a native speaker of Mandarin.
Dr Daniel Ishak | BMed MD FRACP
Respiratory Physician
Dr. Daniel Ishak obtained his Bachelor of Medical Studies and Doctor of Medicine from the University of New South Wales in 2014. He has completed respiratory advanced training in 2021-2024 at St George Hospital, Sutherland Hospital and Gosford Hospital.
Passionate about providing exceptional patient care and driving innovation in respiratory medicine, Dr. Ishak is driven to bridge the gap between clinical practice and research to elevate patient care outcomes.
Since 2022 Dr. Ishak has been involved in several research papers for Thoracic Society of Australia and New Zealand, including Diagnosis of COPD and appropriate inhaler prescribing, technique, and adherence; as well as Pilot Virtual Multidisciplinary Team (MDT) Non-Invasive Ventilation (NIV) Model of care.
Dr. Ishak also speaks Arabic.
Dr Alexandra Dollman | MBBS MSc DipAvMed FRACP
Sleep and Respiratory Physician
Dr Alexandra Dollman is a Specialist Respiratory and Sleep Physician. She graduated at the University of Adelaide in Medicine in 2010 and in 2012 moved to London where she completed a Masters of Science in Aviation Medicine at Kings College London and also obtained a Diploma of Aviation Medicine through the Royal College of Physicians Faculty of Occupational Medicine.
In London, she conducted research at the Lane Fox Respiratory Unit at St Thomas’ Hospital. She then returned to Australia in 2014 where she completed physician training in Sydney and then went on to undertake Specialist Sleep Medicine training at Canberra Sleep Clinic and Respiratory training at Prince of Wales and St Vincent’s Hospitals. Dr Dollman has worked as a Fellow at Northern Beaches Hospital in 2019 and then across several hospitals in Adelaide in 2020. Since then, she has returned to Sydney and holds a Senior Staff Specialist position at Macquarie University Hospital where she is also involved in teaching at the medical school and is a Senior Conjoint Lecturer.
Dr Dollman has a special interest in sleep disordered breathing and complex respiratory failure, particularly in ventilatory respiratory support. She has experience working in 6 different sleep laboratories and enjoys a multidisciplinary approach to managing sleep conditions, working closely with CPAP technicians, sleep psychologists, sleep dentists, ENT surgeons, respiratory physiotherapists and weight loss specialists. She is also trained to manage general respiratory conditions such as asthma, COPD, lung cancer and interstitial lung disease.