Special Interests:

Hepatology – Comprehensive liver assessment and treatment, FibroScan, Steatotic liver disease (SLD, also called fatty liver), metabolic dysfunction-associated steatotic liver disease (MASLD, previously called NAFLD or MAFLD), metabolic dysfunction-associated steatohepatitis (MASH, previously called NASH), liver fibrosis, liver cirrhosis, and the relationship between cardiometabolic risk factors and SLD, MASLD, MASH and cirrhosis.

Gastroenterology - General Gastroenterology, gastroscopy and colonoscopy (see Southern Suburbs Gastroenterology)

Clinical Practice

As a specialist, Prof. Koya Ayonrinde places strong emphasis on timely patient review, professional values, and accurate representation of symptoms, results, and diagnoses. He does not believe in exaggerating or diminishing clinical findings. He considers a trusting relationship, grounded in respect and clear communication with the patient, referring doctor, and other clinicians, essential for effective therapeutic care. His approach includes maintaining confidentiality and privacy, demonstrating empathy, and supporting informed decision‑making.

Prof. Ayonrinde also finds that providing written information about relevant conditions helps patients become active and informed participants in their own health. He works collaboratively with patients, prioritising their well‑being, what matters to them (alongside the priorities of the referring doctor), their dignity, and the delivery of effective, evidence‑based care. He believes that a comprehensive approach to the assessment and management of liver disease—incorporating interdisciplinary input when appropriate—offers significant benefit to patients.

Background & Training

Prof. Koya Ayonrinde graduated in medicine from The University of Western Australia (UWA) and subsequently obtained his specialist qualifications in gastroenterology and hepatology through the Royal Australasian College of Physicians (RACP). Driven by a commitment to advancing patient care and deepening scientific understanding, he went on to complete a PhD at UWA focused on ‘fatty liver’.

He is a Member of the Gastroenterological Society of Australia (GESA), a Fellow of the American Association for the Study of Liver Diseases (AASLD), a Member of the European Association for the Study of the Liver (EASL), and a Fellow of the American Society for Gastrointestinal Endoscopy (ASGE).

Prof. Ayonrinde also serves as a Clinical Professor at both UWA and Curtin University. He remains actively engaged in liver and gastrointestinal research, as well as in teaching and training medical students, doctors in training, and PhD students.

Hospital appointments: Prof. Koya Ayonrinde is a consultant gastroenterologist and hepatologist at St John of God Murdoch Hospital, Fiona Stanley and Fremantle Hospitals. Through his public hospital work at Fiona Stanley Hospital, he is able to offer eligible patients access to free clinical trials investigating new treatments for MASH and cirrhosis. His clinical practice includes a diverse range of activities—consultations, FibroScan assessments, gastroscopy and colonoscopy, and he is active in teaching, and ongoing research—which keeps his work engaging and ensures he remains current with advances in the field

Personal: Outside of work, Koya is a family man, interested in experiencing other places and cultures, tennis (though no longer playing) and sometimes AFL and the other football (soccer).