Dr Trina Kellar

Gastroenterologist – Endoscopist – Motility & Functional GI Disorders 

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Dr Trina Kellar

Dr Trina Kellar



As a Gastroenterologist specialising in Motility and Functional GI Disorders, Dr Trina Kellar brings a new scope of practice to the St Vincent’s Northside group. Whilst Trina subspecialises in the work-up and long-term management of upper GI dysmotility (dysphagia, achalasia, gastroparesis), lower GI dysmotility (chronic constipation, diarrhoea, evacuatory disorders) and all functional GI disorders, she maintains a strong foundation in general adult gastroenterology and hepatology, gastroscopy and colonoscopy.

Trina’s medical training spans three states. After completing her BScApp with a number of university medals, Trina began at The University of Sydney, Westmead Hospital and The Prince of Wales Hospital in Sydney. She then returned to Brisbane for specialist training at The Princess Alexandra, Logan Base, and Royal Brisbane and Women’s Hospitals, followed by The Prince Charles Hospital where she completed training in oesophageal physiology studies including oesophageal manomery and pH/impedance.

Driven by a passion to advance the management of Functional and Motility disorders in Queensland, Trina currently works in both Brisbane and Melbourne, holding positions with The Alfred Hospital Complex Functional Gut Disorders Service – still the only public multidisciplinary functional gut service of its kind in Australia – and with The Royal Melbourne Hospital Neurogastroenterology service led by Professor Geoff Hebbard. She is currently training in anorectal physiology studies, to complete her lower GI motility skill set. Trina is committed to furthering the understanding and management of these complex disorders, and is actively involved in clinical research, presenting at local, national and international conferences.

Trina is committed to collaborative patient care, involving the primary care provider, surgical colleagues, and a selected group of specialist GI dietitians, continence physiotherapists, and clinical psychologists who share her passion for improving the quality of life of patients living with these difficult disorders. Having started life in a small country town with a rich First Nations and farming culture, before moving to Brisbane as a violinist, Trina provides respectful, non-judgemental care and welcomes diversity. From general gastroenterology and endoscopy, to complex functional gut disorders, she looks forward to sharing in quality care of your patients.