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Dr David Walker qualified with distinction from Imperial College London (Charing Cross and Westminster Medical School) in 2000.
He trained in London on the North West Thames Gastroenterology rotation, working at a number of hospitals including St Mark’s Hospital, St Mary’s Hospital, and Charing Cross Hospital. This provided him with excellent training in all aspects of gastroenterology.
Dr Walker subsequently spent three years as a clinical research fellow at Imperial College London studying the role of genetics and gut bacteria in the aetiology of inflammatory bowel disease (IBD), and was awarded a Doctorate of Medicine in 2011. He has published his research in a number of international peer reviewed medical journals. In addition, he has written five book chapters and given invited talks for the charity Crohn's and Colitis UK.
Dr Walker has a keen interest in teaching and completed a Postgraduate Certificate in Medical Education at the Royal College of Physicians/University College London. He is a Clinical Teacher at the University of Bristol and teaches medical students at the Royal United Hospital, Bath.
Areas of interest
Dyspepsia (indigestion); Gastro-oesophageal reflux; Abdominal pain; Chronic diarrhoea; Irritable bowel syndrome (IBS); Coeliac disease; Inflammatory bowel disease (Crohn’s disease, ulcerative colitis); Gastrointestinal consequences of cancer treatment;Endoscopy (colonoscopy, sigmoidoscopy, gastroscopy)
Current NHS consultant posts held
Royal United Hospital, Bath
Inflammatory bowel disease; Medical education
Walker DG, Williams HRT, Bancil AS, Sato H, Rai P, Pantelidis P, Chambers JC, Kooner JS, Orchard TR. Ethnicity differences in genetic susceptibility to ulcerative colitis: a comparison of Indian Asians and white Northern Europeans. Inflammatory Bowel Disease 2013; 19: 2888-94
Williams HR, Willsmore JD, Cox IJ, Walker DG, Cobbold JF, Taylor-Robinson SD, Orchard TR. Serum metabolic profiling in inflammatory bowel disease. Dig Dis Sci. 2012 Aug;57(8):2157-65.
Walker DG, Williams HRT, Kane SP, Mawdsley JE, Arnold J, McNeil I, Thomas HJW, Teare JP, Hart AL, Pitcher MCL, Walters JR, Marshall SE, Orchard TR. Differences in inflammatory bowel disease phenotype between South Asians and Northern Europeans living in North West London, United Kingdom. American Journal of Gastroenterology 2011 Jul;106(7):1281-9
Williams HR, Cox IJ, Walker DG, Cobbold JF, Taylor-Robinson SD, Marshall SE, Orchard TR. Differences in gut microbial metabolism are responsible for reduced hippurate synthesis in Crohn's disease. BMC Gastroenterology 2010; 17, 10(1):108
Williams HR, Walker DG, North BV, Taylor-Robinson SD, Orchard TR. Metabonomics in ulcerative colitis. J Proteome Res 2010; 9(5): 2794-2795
Williams HRT, Cox J, Walker DG et al. Characterization of Inflammatory Bowel Disease with Urinary Metabolic Profiling. American Journal of Gastroenterology 2009; 104: 1435-1444.
Walker D and Orchard T. Do extraintestinal manifestations predict disease course, severity, and/or activity in IBD? Inflammatory Bowel Disease 2008; 24; 14 (S2):200-201.
Williams H, Walker D, Orchard T. Extraintestinal manifestations of inflammatory bowel disease. Current Gastroenterology Reports 2008; 10(6):597-605.
Walker R, Walker DG, Husain M, Kennard C. Control of voluntary and reflexive saccades. Experimental Brain Research 2000; Vol 130 Feb II, p540-544
Patient Experience Surveys:
Excellent feedback from an externally validated patient satisfaction survey (2015) (n=30: average score: 3.99/4). 96.6% of patients gave the highest mark in all domains, 100% of patients stating they were ‘very satisfied with the care provided’.
Feedback from a National Inflammatory Bowel Disease patient survey in 2015 (n=15): 82% of patients rated the care given by Dr Walker as excellent & 18% as very good.
- BSc (Hons) Imperial College London 1997
- MBBS Imperial College London 2000
- MRCP Royal College of Physicians (London) 2004
- Post Graduate Certificate in Medical Education University College London/Royal College of Physicians 2010
- MD (Res) Imperial College London 2011
Details of entry to specialist register
- CCT in Gastroenterology and General (Internal) Medicine, 2012
Affiliations / memberships
British Society of Gastroenterology
Royal College of Physicians
Higher Education Academy
Post treatment communication
Following treatment of a Bupa member, I will communicate with GPs in line with Department of Health, GMC and appropriate professional bodies guidelines.