Meet our endosQ team

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Meet our expert doctors, Assoc. Prof. Dr. James Daveson, Dr. Sam O'Connor, Dr. Nadia Maqboul and Dr. Jeff Chao. All are Gastroenterologist’s and they have completed specialist training in order to best diagnose and treat you. Before consulting at endosQ, our doctors have undertaken extensive training both within Australia and abroad. When not seeing patients, our dedicated doctors spend time training other Gastroenterologists in Australia, engaged in research both within Australia and with their international peers, ensuring they are at the cutting-edge of their field. Due to the high quality of their work, our doctors at endosQ present their research and clinical care at national and international conferences. Their work features in scientific journals, and because they are at the forefront of clinical care their work has even featured in the media. Our doctors are committed to providing expert, individualised care for patients and families throughout Queensland.


ASSOC. PROF Dr. James Daveson

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Originally from Mackay Assoc. Prof. Dr. James Daveson (MBBS (Qld) FRACP) completed his medical degree at the University of Queensland in Brisbane in 1993. He completed his physician training in gastroenterology at the Royal Brisbane and Women’s and Princess Alexandra Hospitals. He accepted a consultant position at the Princess Alexandra Hospital where he helped lead the introduction of procedural innovations such as Balloon Enteroscopy. 

Following his father, Dr. Alfred Daveson (a pioneering medical doctor committed to enabling excellent medical care for families in the Mackay region), Assoc. Prof. Dr. James Daveson established gastroenterology services in Mackay in 2008. Through establishing these services Assoc. Prof. Dr. James Daveson made sure that every patient could access clinical investigations that were only previously offered to patients and families that could travel to the larger cities such as Brisbane.

Assoc. Prof.  Dr. James Daveson now continues to run a clinic at Both St Andrew’s War Memorial and the Wesley Hospitals in Brisbane. He is also engaged in research primarily focused around Coeliac Disease, with clinical trials running at Wesley Medical Research and the Coral Sea Clinical Research Institute (CSCRI in Mackay). He has conjoint appointments at James Cook University and The University of Queensland

Assoc. Prof.  Dr. Daveson has received the Blackwell Publishing Clinical Award for excellence as well as previously the Queensland Gastroenterology Society Young Investigator of the Year.

Assoc. Prof. Dr. Daveson is a member of Coeliac Australia’s Medical Advisory Committee, is the author of several book chapters and has been published in international peer reviewed journals. He is regularly asked to speak on Coeliac Disease both nationally and internationally.  

For a full list of Assoc. Prof. Dr. Daveson’s published works, visit In The Media, or connect with him on LinkedIn.


Dr. Sam O’Connor

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Dr. Sam O’Connor graduated with Honours from the University of Sydney in 2006. Dr O'Connor's interest in gastroenterology stems from working as a research assistant for Professor Colm O’Morain, recent President of United European Gastroenterology, in Dublin Ireland during a year of travel in 2004. After University, Sam moved to Brisbane in 2007 where his junior and basic physician training was completed at The Royal Brisbane and Women’s Hospital.

In 2011 Sam commenced training in gastroenterology in Townsville, before returning to Princess Alexandra in Brisbane for a further two years. His last year of formal advanced training was spent as the Inflammatory Bowel Disease and Motility Fellow.

In 2013 Sam was awarded the ‘Fresenius Kabi Travel Award’ by the Gastroenterological Society of Australia to present his abstract on ‘Polypectomy trends in Australia’ at the United European Gastroenterology Week in Berlin. He was also part of a select group of junior Gastroenterologist s globally invited to attend the 2014 ‘Advanced Intensive Inflammatory Bowel Disease’ course at the European Crohn’s and Colitis Congress in Copenhagen.

From May 2014 to May 2015 Sam undertook a fellowship in advanced colonoscopy in the United Kingdom with the Gloucestershire NHS Trust and Dr John Anderson.

Sam has interests in Inflammatory Bowel Disease, quality and advanced colonoscopy, oesophageal dysmotility and capsule endoscopy. He has presented research at Australian Gastroenterology Week, United European Gastroenterology Week, Digestive Diseases Week in the United States, and the European Crohn’s and Colitis Congress.


Dr. Nadia Maqboul

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Dr. Nadia Maqboul completed her medical degree at the Royal Free and University College Medical School, London. During her time in the UK, Dr. Maqboul also gained a BSc with Honours and a Masters Degree in Public Health.  This subsequently led to a research project looking at the role of genetic counselling in genetic diseases associated with consanguineous marriages. The results from this research not only resulted in Dr. Maqboul being awarded a prestigious scholarship prize, but also led to some changes in health-care provision at a local level. 

Dr. Maqboul spent time working as a junior doctor at the Royal Free Hospital in London prior to moving to Melbourne.  It was there that she completed her Basic Physician Training and Advanced Training in Gastroenterology. She was selected from her peers to be awarded the ‘Inaugural Neville Yeomans Prize’ for her clinical research during this time.  Her research has been presented at international and local meetings.  In addition to her Gastroenterology training, she was also part of a senior committee responsible for the training and ongoing education of junior doctors.   

Dr. Maqboul moved to Queensland after being offered a two-year Fellowship position in Interventional Endoscopy at the Princess Alexandra Hospital in Brisbane.  She spent this time gaining experience in various advanced endoscopic procedures.  Dr. Maqboul is currently employed as a Consultant Gastroenterologist at the Princess Alexandra Hospital with a special interest in Interventional Endoscopy. She carries out multiple procedures including upper GI Endoscopy; Colonoscopy (including National Bowel Cancer Screening); EMR of large colonic polyps; Endoscopic Ultrasound and ERCP.  Her role also involves the training and supervision of the Interventional Endoscopy Fellow and other more junior members of staff.  She has also held the role of Acting Director of Endoscopy at the Princess Alexandra Hospital.  Dr. Maqboul provides consultative services at endosQ covering all aspects of Gastroenterology and Hepatology, in addition to endoscopic procedures.

Dr. Maqboul is dedicated to the education of the future generation of doctors. She is a Senior Lecturer at the University of Queensland and regularly teaches medical students at both the Princess Alexandra Hospital and also via endosQ.


Dr. Jeff Chao

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Dr. Jeff Chao completed his Medical degree at the University of Otago in New Zealand and subsequent physician training at the Princess Alexandra Hospital in Brisbane. Dr. Chao then completed his advanced Gastroenterology and Hepatology training initially at Cairns Hospital followed by further two years at the Princess Alexandra Hospital.

Dr. Chao was awarded the Advanced Fellowship in Inflammatory Bowel Disease by McGill University in Montreal, Canada where he underwent intensive clinical and research training at one of the leading Inflammatory Bowel Disease centre of excellence in Canada.

Following his return from Canada, he was appointed as a Consultant Gastroenterologist at the Princess Alexandra with a focus on Inflammatory Bowel Disease. Dr.Chao is also involved in multiple international clinical trials investigating the use of advanced biologic therapy for the treatment of Inflammatory Bowel Disease. He is also the current Clinical lead for the Gastroenterology Integrated Care Clinic for the management of functional GI disorders. Dr. Chao also provides clinical service at endosQ Mackay encompassing general Gastroenterology and Hepatology as well as gastroscopy and colonoscopy procedures.

In addition to his clinical commitments, Dr. Chao has also published original research in multiple international peer-reviewed medical journals mostly in the field of Inflammatory Bowel Disease as well as editorial and book chapter. He has presented his research in multiple international Gastroenterology conferences. Dr. Chao also dedicates his time for the training of undergraduate medical students, junior medical staff and specialists-in-training.


Sue AllsopP

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Over the last 10 year’s Sue’s specialist Inflammatory Bowel Disease (IBD) nursing skills have been utilized at the endosQ IBD Clinic that serves over 1,000 IBD patients from the private and public sectors. She has delivered these services with the support of the Mackay Hospital and Health Services and Mater Misericordia Hospital, Mackay.

Under the mentorship of Dr James Daveson, Sue has undertaken some valuable research projects, including Pregnancy Outcomes for IBD Patients in a Regional Clinic (S Allsopp & Dr A James Daveson, 2015) which was presented at AGW, and an abstract on Demylination during Infliximab treatment for Crohn’s Disease which was exhibited at AGW- 2016 (Yoon- Kyo An, Sue Allsopp, Dr Kathryn L Daveson, Dr A James Daveson, 2016).

The current research project (not yet published) is an Incidence Study of New Diagnosis of Crohn’s Disease in a Regional Centre. The data will be extremely useful for patient education and the planning of essential resources to provide quality care for this chronic disease.

Sue has been a nurse for thirty-five years and has worked in many diverse healthcare settings, including remote, regional and tertiary environments.

She completed her initial nursing Certificate at the Parkes District Hospital and then completed a Bachelor of Nursing degree in 1993 (University of Western Sydney). Her post graduate studies in Aged Care Management and Aged Care Nursing were undertaken at the University of Newcastle, 1997-1998. Other credentials include Operating Theatre Certificate, Concorde Hospital, 1995 and Nurse Immunisation Certificate Tropical Population Public Health, Cairns, 2006.

She is an enthusiastic team member at CSCRI, and has commenced clinical trials in IBD and Coeliac Therapies. The trials are likely to be life changing to IBD patients and those with other diseases in the region.


Kerri Jewell

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Kerri Jewell is our Practice Manager at endosQ and works alongside the staff at Coral Sea Clinical Research Institute. In this capacity, she works to support Dr’s James Daveson, Sam O’Connor, Jeff Chao & Nadia Maqboul by providing comprehensive support and acting as a local point of contact for endosQ. Kerri has been in Medical Administration for the past 9 years and has been a part of the endosQ team since 2014. Kerri is currently enrolled in further studies, completing her Diploma of Practice Management with AMA.


Marika Kerr

Marika is one of our friendly Medical Receptionists at endosQ and has been a member of your staff since 2018.


Holly Lovatt

Holly is one of our friendly Medical Receptionists at endosQ and has been a member of endosQ since 2019.