Team

Allana Gregson

Allana rejoined CDH in February 2026 bringing with her many years in the healthcare industry, a strong focus on professionalism, organisation, and patient care. In addition to her front-line experience, she runs her own medical consulting business. Outside of work she has a passion for travel and loves exploring new places and cultures. Allana is […]

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Sarah Allan

Sarah joined CDH in November 2025, bringing over 19 years of medical administrative experience with her. Sarah is excited to build genuine relationships with patients and focus on ensuring their experience with CDH is positive. Sarah originally hails from the Darling Downs, spent her previous working career at Queensland Health in Brisbane and moved to

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Sarah Costello

Sarah Costello

With over 15 years of nursing experience across both New Zealand and Australia, Sarah has developed a well-rounded and diverse clinical background spanning hospital and community healthcare settings. Sarah’s career has included roles in general medical wards, gastroenterology units, and community nursing services, where she has acquired skills in patient care, communication, and multidisciplinary collaboration.

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Dr Patricia Smart

Dr Patricia Smart

Dr Patricia Smart obtained her medical degree from the University of Queensland in 1995. She went on to work at Nambour Hospital and Ipswich Hospital before undertaking specialist training in General Practice. Patricia has worked in General Practice for over 20 years, while also working in roles as a medical educator and training of GP

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Dr Hans Seltenreich

Dr Hans Seltenreich

Hans completed his medical training and gastroenterology degree at the University of Padua (Italy) and the University of Heidelberg (Germany). Before relocating to Australia, he worked for 5 years as a consultant Gastroenterologist in Switzerland. He then moved to the Sunshine Coast in 2007 to work as a consultant gastroenterologist and director of gastroenterological services

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Dr Felicity Hartmann

Dr Felicity Hartnell

Dr Felicity Hartnell BSc, MBBS, DPhil (Oxon.) Consultant Gastroenterologist and Hepatologist. Felicity graduated from medicine at the University of Queensland in 2011 and completed specialist training in Gastroenterology and Hepatology, having trained at The Prince Charles Hospital (TPCH), Royal Women’s and Brisbane Hospital (RBWH) and Sunshine Coast University Hospital (SCUH). During her training she completed

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Dr Spencer Kajevu

Dr Spencer Kajevu

Dr Spencer graduated from the University of Zimbabwe in 2002; over the following three years he gained invaluable medical experience in the challenging environment of the Sub-Saharan region, before moving to Australia in 2005 to pursue his paediatric training. His Paediatric Gastroenterologist training was undertaken in Brisbane at the Royal Children’s Hospital, Mater Children’s Hospital

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stephy

Stephanie Buckton

Stephanie completed her nursing training and post-graduate gastroenterology degree at the Universities of: Leeds, Sheffield and Central London (UK). She completed her Nurse Practitoner training gaining a Masters of Nursing Practice at the University of Queensland. She developed a specific interest in inflammatory bowel disease (IBD) and was one of the first IBD nurse consultants

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Angela Sumby

Angela Sumby

Angela is a valuable addition to the Coastal Digestive Health team working as a practice nurse and brings with her a friendly face, coupled with a wealth of knowledge in endoscopy and general nursing. Angela graduated from a Diploma of Nursing on the Sunshine Coast in 2014 before taking on an opportunity to expand her

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Madonna Abel

Madonna joined the team at Coastal Digestive Health in August 2022 after completing a Cert III in Medical Administration looking for a career change after relocating from Toowoomba in 2020. She has a strong customer service and admin background, having worked in the banking and finance sector for 15 years, and ran her own successful

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