Meet our panel of medical specialists

Xaviour Walker is a consultant geriatrician and internal medicine physician at Dunedin Hospital, Te Whatu Ora Southern and honorary Senior Lecturer, University of Otago. He is a graduate of the University of Otago Medical School and completed his post graduate medical training from Harvard, Johns Hopkins Bloomberg School of Public Health, where he also received his Master’s in Public Health, National Institutes of Health (NIH) and University of California, Irvine. He is triple American Board certified in Internal Medicine, Geriatric Medicine, Public Health and Preventive Medicine and is a Fellow of Australian College of Physicians (FRACP). His research interests in healthy ageing, geriatrics, Pacific Island health and workforce and medical education... read more »

Dr Sisira Jayathissa is a General Physician and a Geriatrician. He is also the clinical director of medicine and community health at the Hutt Valley DHB. He is actively involved in both undergraduate and post graduate medical education in the Wellington region. In addition to his medical qualifications he has completed a Masters of Business Studies in Health and a Masters in Clinical Epidemiology with major emphasis of pharmaco-epidemiology and biostatistics. Sisira is currently a member of the editorial advisory board for the New Zealand Formulary. Dr Jayathissa selects the studies and provides commentary for Internal Medicine Research Review... read more »