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dr jeff garrett

Honorary Associate Professor Jeffrey Garrett

Hon.AProf. Jeffrey Garrett graduated from Otago University Medical School in 1976. He undertook his postgraduate study in both internal medicine and respiratory medicine in Auckland and London and has held a Clinical Associate Professorship since 2000. He was the Clinical Director of Medicine at Middlemore Hospital between 2001 and 2015 and was previously the Clinical Director of Respiratory Services at Green Lane Hospital from 1992-2000.  He established Lung Transplantation at Green Lane Hospital in 1991 and the Auckland Regional Network for lung cancer in 2010.  He sat on the New Zealand Advisory Committee for Lung Cancer and more recently the National Health Committee COPD Advisory Group in 2014.

He wrote the TSANZ Standards of Care published on the New Zealand Ministry of Health website in 2004 and published a review on NZ Respiratory Services in 2012.  He has been an active researcher, predominantly in asthma, for more than 20 years with 70 publications in international journals. His current research interests are in COPD, asthma, bronchiectasis and lung cancer.  He is currently involved in transforming electronic health care models in asthma and COPD into primary care and in utilising biomarkers to direct asthma and COPD care more accurately.

He also undertakes reviews for the Health and Disability Commissioner and has expertise in writing and presenting medicolegal reports. He led the introduction of Advance Care Planning into Middlemore Hospital in 2008 and maintains an active involvement in the area. He has maintained a small private practice since 1988 and joined the NZSRI group in 2010.





Dr. Christopher Lewis

Dr. Chris Lewis graduated from Manchester University medical school in 1996. He completed his basic medical training in north-west England, before moving to NZ to become research fellow at Green Lane Hospital in 2000.

His research examined the use of supplemental oxygen therapy during sleep and for breathlessness in COPD. He subsequently completed advanced training in Thoracic and Sleep Medicine at Auckland City Hospital, before returning to the UK to complete subspecialist training at Papworth Hospital, a specialist cardiothoracic unit.

At Papworth he undertook attachments specializing in lung cancer (including training in interventional bronchoscopy and endobronchial ultrasound – EBUS); lung transplantation; and cystic fibrosis, bronchiectasis and non-tuberculous mycobacterial (NTM) disease. Since October 2006, Chris has worked as a specialist for the respiratory service at Auckland District Health Board.


Mark O'Carroll


Dr. Mark O'Carroll

Dr. Mark O’Carroll graduated from Auckland Medical School in 1996 and undertook his initial training in Respiratory and Sleep Medicine at Green Lane Hospital before working as the Cystic Fibrosis Fellow at the Prince Charles Hospital in Brisbane, Australia.

He now works as a Respiratory Physician at Auckland City Hospital and the Green Lane Clinical Centre as a general Respiratory Physician with a special interest in Cystic Fibrosis, Lung Transplantation, airway disease (particularly Bronchiectasis), Tuberculosis and Interventional Bronchoscopy.

He is proficient at bronchoscopy including intervention and use of endobronchial ultrasound. He has an interest in medical education and has been the Director of Physician Education at Auckland City Hospital since 2003 and a member of the Royal Australasian College of Physicians Specialist Advisory Committee in Sleep and Respiratory Medicine since 2004.

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Dr. Conor O'Dochartaigh

Dr. Conor O'Dochartaigh (MB BCh, MD, FRCP(Lon), FRACP) has a wide range of experience in Respiratory & Sleep Medicine. He works both in Private Practice at NZRSI and at Middlemore Hospital (since 2006) where he has been Clinical lead for Sleep Medicine, Clinical Head of the Respiratory and Sleep Medicine Department,  and is currently Clinical Director of the Respiratory Function Laboratory.  Conor is involved in medical student education through the University of Auckland and training of Respiratory Specialists through the Royal Australasian College of Physicians. He has a research background in pulmonary physiology including cardiopulmonary interactions.

Conor has a focus on providing high quality patient-centred care.  His clinical areas of interest include Sleep Apnoea and related sleep disorders, Interstitial lung disease, investigation and management of unexplained shortness of breath and atypical respiratory symptoms.  Conor deals with the full range of Respiratory conditions including chronic cough, asthma, COPD, Bronchiectasis, lung cancer as well as investigation of chest x-ray abnormalities, diagnosis and exclusion of TB and Immigration medical reports.  He carries out diagnostic bronchoscopy at Greenlane Medical Specialists. 


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Dr. Stuart Jones

Dr. Stuart Jones MBChB (Otago 1995), PhD (Otago 2003), FRACP (2007)

Dr. Stuart Jones originates from the Far North, however headed to the far south attending Otago Medical School from which he graduated in 1995. He spent his initial post-graduate years working at Dunedin Hospital before taking up a post as respiratory research fellow at the Dunedin School of Medicine. In 2003 he graduated with a PhD from Otago University with a thesis entitled: Exhaled nitric oxide and the clinical control of airway inflammation.

He commenced his respiratory specialist training in Dunedin before heading to the UK for a further 3 years of training. During his time in the UK he was based in Cambridge where he worked at the local university hospital (Addenbrookes) and at Papworth Hospital, a specialist cardio-respiratory unit. While at Papworth he trained in pulmonary hypertension and sleep medicine. He then went to Edinburgh where he worked as a sleep fellow at the Royal Infirmary.

He is currently employed as a respiratory and general physician at Middlemore Hospital. He specialises in general respiratory medicine, with a particular interest in sleep medicine, asthma and airway inflammation, and pulmonary hypertension.


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Dr. Andrew Veale

Dr. Andy Veale graduated from Otago University Medical School in 1979, having first completed a BSc in Biochemistry and Microbiology. He undertook his basic medical training in Auckland before undertaking advanced training in Internal Medicine, Respiratory Medicine and Sleep Medicine. Further specialised training in Interventional bronchoscopy, thoracoscopy and Pulmonary Physiology followed.

He was involved (with others) in establishing the first Polysomnography Sleep Laboratory at Greenlane Hospital 20 years ago. He established the first private Sleep Laboratory and Pulmonary Physiology in NZ at Mercy Hospital. Due to increased growth, and the increase in public contracting, the NZ Respiratory & Sleep Institute was opened in a purpose designed facility in Greenlane.

He has had a longstanding interest in physiology which married well with an interest in Diving & Hyperbaric Medicine. He has been able to further this with a period in the RNZVR as Surgeon Lieutenant Commander (now retired) and remains a consultant to the RNZN. He holds the Diploma in Diving & Hyperbaric Medicine.

Dr Veale consults part time at Middlemore Hospital and oversees the running of the Institute.  He is no longer accepting new referrals.


Dr. Naveen Pillarisetti - Paediatric Respiratory Physician

Dr Naveen Pillarisetti earned his medical degree in his native India but received higher training in the paediatric teaching hospitals of the UK. His fellowship in paediatric respiratory medicine from The Royal Children’s Hospital in Melbourne meant he was close enough to set his sights on New Zealand. When he was offered a position as a paediatric consultant at Starship Hospital, it was the perfect excuse to stay in a part of the world he loves.

Naveen recently conducted research into early cystic fibrosis lung disease and is currently looking at the role of airway microbiome in bronchiectasis. He hosts several paediatric respiratory out-reach clinics around the country and teaches at both a student and post-graduate level.

Working with children has its own set of special challenges but, Naveen believes, early intervention in disorders of a respiratory and sleep nature can have significant positive impact on the health of a patient as an adult. He is married to a developmental paediatrician and the couple has a teenage son and active Labrador to keep them occupied on the weekends.

Qualifications: MD, MRCPCH, CCT (UK)


Dr. Paul Dawkins

Paul Dawkins has been working as a Consultant Respiratory Physician at Middlemore Hospital since October 2013. At Middlemore he has responsibility for inpatients in respiratory and general medicine, as well as respiratory and sleep outpatient clinics. He performs bronchoscopies (including endobronchial ultrasound).   He is Clinical Lead for lung cancer and chairs the Northern region lung cancer stream. He was previously in consultant posts in respiratory medicine at University Hospital Birmingham and then Royal Wolverhampton Hospital in the UK, where he was Clinical Director for Respiratory Medicine.
On the academic side, he is principal and co-investigator for a number of commercial clinical trials at the hospital in respiratory medicine. He regularly teaches medical students and has set up simulated medical emergency scenarios using high fidelity manikins. He is an RACP educational supervisor for registrars. He is an Honorary Senior Lecturer in Medicine at University of Auckland.
He read undergraduate medicine at the University of Bristol (UK), including an intercalated first class honours degree in Microbiology. He has an MD higher research degree from the University of Bristol (UK) from research work on the development of genetic models for alpha-1-antitrypsin deficiency carried out at Brigham & Women’s Hospital, Boston (USA). He has a Masters in Medical Education from University of Warwick (UK). He has Fellowship of the Royal College of Physicians of London (FRCP[UK]) and the Royal Australasian College of Physicians (FRACP). He has a number of published original articles, reviews and book chapters, and has delivered several presentations at international meetings.
He welcomes referrals in any area of respiratory medicine including sleep disordered breathing. He has access to full lung function, sleep investigation laboratories and bronchoscopy facilities. He aims to provide a responsive, efficient and high quality respiratory opinion for our local GPs. He sees patients every Friday afternoon including a monthly clinic at Pukekohe Family Health Care.


Dr. Syed Hussain

Dr. Syed Hussain graduated from Dhaka Medical College, Bangladesh in 1990. After moving to New Zealand he undertook his basic medical training in Auckland Region before undertaking advanced training in General Medicine, Respiratory Medicine and Sleep Medicine.

He worked as a general and respiratory physician at ADHB until December 2015 when he moved fulltime to the respiratory department.  He is the clinical lead for the sleep and ventilatory service at ADHB.  He has been involved in developing the Auckland regional COPD pathway for primary care and integrated management plan for frequent presenters to hospital with COPD and bronchiectasis. He is also affiliated with the University of Auckland as an honorary senior lecturer. He has special interest in sleep, airways disease, chronic cough, lung cancer, investigation of chest x-ray abnormalities and Immigration medical reports.

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Dr. Jacob Twiss - Paediatric Respiratory Physician

Jacob Twiss is recognised by the Royal Australasian College of Physicians (RACP) as a Specialist in both Respiratory and Sleep Medicine for children and young people. His roles in public (Starship since 2005) and private (NZRSI since 2012) practice give him broad experience in children’s respiratory and sleep health ranging from relatively mild but troublesome symptoms to severe life limiting disease. He is also able to draw on his own experiences as parent and patient.

Jacob strives to establish a partnership model of care with parents and young people, involving them in informed decision making regarding investigation and treatment. Symptoms are common in young children sometimes making it a challenge to distinguish the bothersome from worrisome underlying disease. His goals focus on reducing symptoms, uncovering causes and minimising risk, all whilst avoiding unnecessary invasive tests and treatment where possible. Sometimes a careful watch and wait approach is best.

After graduating from Auckland Medical School, Jacob trained as a Paediatrician, Respiratory and Sleep Specialist in NZ and Australia achieving accreditation by the Royal Australasian College of Physicians in 2004, 2005 and 2007 respectively. He trained in flexible bronchoscopy in NZ and the US. Along the way he has also worked as a General Paediatrician, Emergency Department Physician, and Adolescent Health Consultant. He spent his 2018 sabbatical visiting paediatric long term ventilation programmes in Queensland, Colorado and London. Jacob has co-authored many national and international clinical guidelines and trained as Sleep Laboratory Accreditor for the National Association of Testing Authorities.

Whilst his focus has been on clinical practice he has also engaged in research, teaching and leadership roles. He completed a PhD in childhood bronchiectasis (severe chronic lung infection) with the University of Auckland in 2010. Other roles have included Lead Clinician and Laboratory Clinical Director of the Starship Respiratory Service, Honorary Senior Lecturer at University of Auckland, Australasian Sleep Association Paediatric and Clinical Committees (co-chair & member), NZ Paediatric Sleep Clinical Network, Starship Chief Resident, Starship Clinical Board, Resuscitation and Medication Safety Committees, RACP Trainees Committee (chair) and NZ Resident Doctors Association (Auckland President).

Qualifications: MbChb, RACP, PhD, BHB, DCH

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Dr. Alex Chapman

Dr Alex Chapman is an experienced respiratory and general physician with a wealth of experience from the UK and NZ. He has Southern Cross Affiliation but welcomes referrals from all sources.

Alex has a wide experience in the field of general respiratory medicine, including difficult asthma, smoking related disorders, respiratory infection, cancer, interstitial and occupational lung disease. He has always retained his general acute medical expertise throughout a busy career within hospital medicine.

His interest lies in difficult diagnosis and interventional procedure including; thoracic ultrasound, bronchoscopy, endobronchial ultrasound guided techniques and cardiopulmonary exercise testing.

He welcomes referrals of unexplained breathlessness or cough.

"Of paramount importance is my interest in people. A patient orientated approach has always guided my management decisions."

Alex specialises in:  cough, asthma, COPD and smoking related disorders, pulmonary fibrosis, lung cancer, mesothelioma and occupational lung disease, cardiopulmonary exercise physiology.


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Dr. James Wethasinghe

Dr. James Wethasinghe (MBChB 2010, PGCertCPU 2015, FRACP sleep 2018, FRACP General Medicine 2020) is an Auckland trained Respiratory Specialist.

Born in Sri-Lanka, he has had all of his formative education in New Zealand. He is dual trained in Respiratory and Sleep Medicine and Acute General Medicine.

James is currently working as a Respiratory and General Physician in North Shore and Waitakere Hospitals, where he cares for a wide range of patients with General Medical and Respiratory diagnoses. He is actively involved in the development of the Waitemata District Health Board Sleep Service .

His research interests are broad and he has published in the fields of: Sleep, Interstitial Lung Disease, Atypical Infection and Non-Tuberculous Mycobacteria as well as Pleural Malignancy.

James has also assisted with the peer review and critical appraisal of publications for Respirology (a top Australasian respiratory journal) and participated in large multicenter international randomized trials during his Sleep Fellowship. He has presented at international and local conferences on the introduction of Interventional Bronchoscopy at North Shore Hospital.

Since 2018, James has been actively involved in formally teaching RACP candidates and is a honorary lecturer at the University of Auckland.

James is experienced in treating all Respiratory conditions and is happy to accept all referrals. He regularly performs Standard and Interventional Bronchoscopy, point of care ultrasound for multiple systems and has access to lung function (including bronchial challenge tests) and induced sputum which allows him to provide a complete assessment of patients."

Dr. Tanya McWilliams

Dr Tanya McWilliams is a Respiratory Physician at Auckland City Hospital, New Zealand. She is a specialist in Respiratory medicine and Lung Transplant and a national expert in the medical and surgical management of Pulmonary Hypertension. 

Tanya graduated from Auckland Medical School in 1992 and completed her FRACP in Respiratory Medicine in 2000. She undertook a fellowship at the Alfred Hospital in Melbourne (in lung transplant) in 2003 and then joined the team at Green Lane and Auckland City Hospitals as a Respiratory and Lung Transplant Physician. In 2008, she was awarded a PhD through Monash University.

She has an active interest in respiratory medicine and is a specialist in pulmonary hypertension; lung transplant and end stage lung disease and is experienced at bronchoscopy including intervention and use of endobronchial ultrasound.


Dr. Sasiharan Sithamparanathan

Dr Sasiharan Sithamparanathan is a respiratory physician at Auckland City Hospital who specialises in pulmonary hypertension, lung transplantation, tuberculosis and advanced lung diseases.

Sasi graduated from Nottingham Medical School (United Kingdom) in 2007. He completed his specialist training (UK) in both respiratory and general medicine in 2018. Concurrently, Sasi obtained additional clinical and research training in both pulmonary hypertension and advanced lung diseases for three years at the Freeman Hospital's pioneering Institute of Transplantation (Newcastle, UK) and was awarded an MD in research from Newcastle University (2018). He subsequently undertook two further fellowships, the first in interstitial lung diseases at the John Radcliffe Hospital in Oxford, UK and then a fellowship in lung transplantation and advanced lung diseases at St Vincent’s Hospital, Sydney, Australia.

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PHONE                  09 638 5255
FREEPHONE         0800 895 120
FAX                        09 638 6022

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Ascot Office Park 
Level 3, Building B
93-95 Ascot Avenue
Greenlane East

North Shore Medical Specialists
326 Sunset Road
Windsor Park 
North Shore
PO Box 109 409
Auckalnd 1149

Contact Us

PHONE                  09 638 5255
FREEPHONE       0800 895 120
FAX                        09 638 6022

icon fb Follow Us on Facebook
Ascot Office Park 
Level 3, Building B
93-95 Ascot Avenue
Greenlane East
Auckland 1051

Northshore Medical Specialists
326 Sunset Road
Windsor Park
PO Box 109 409
Auckland 1149