Dr Tim Ambrose


BSc (Hons), MBChB, MRCP, DPhil

GMC number: 6134453

Practising since: 2006


Gastroenterology, Nutrition

Consultation times

  • Friday morning weekly. Other times by arrangement.
  • Overview
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Dr Tim Ambrose is a Consultant Gastroenterologist at Nuffield Health, The Manor Hospital, Oxford and Oxford University Hospitals NHS Foundation Trust.

Dr Ambrose qualified in medicine from The University of Edinburgh and completed his training in Gastroenterology in Oxford and the wider Thames Valley region. He undertook a Fellowship in Intestinal Rehabilitation at St Mark’s Hospital, London, and in Intestinal Transplantation at Addenbrooke’s Hospital, Cambridge (2014-2015). He was awarded his DPhil from The University of Oxford (2018) and for his thesis, he was awarded a Letter of Commendation.

Dr Ambrose has expertise in all aspects of general gastroenterology including diagnostic and therapeutic gastroscopy and colonoscopy. His subspecialty interests lie in inflammatory bowel disease (ulcerative colitis and Crohn’s disease) and clinical nutrition. He provides patient-focused consultations with shared agreement on investigations and treatment strategies. Politeness, communication and explanation have been consistent themes in patient feedback.

Dr Ambrose has ongoing academic interests related to his areas of practice and has peer-reviewed for a number of relevant journals. He sits on the Small Bowel & Nutrition committee of the British Society of Gastroenterology and on the committee of the British Association for Parenteral and Enteral Nutrition Medical section.

Special interests

  1. General Gastroenterology – including anaemia, diarrhoea, constipation, abdominal pain, reflux, swallowing difficulties, nausea/vomiting and weight loss
  2. Inflammatory bowel disease – Crohn’s disease and ulcerative colitis, including stoma dysfunction
  3. Nutrition – including coeliac disease, short bowel syndrome

Other interests

Personal interests: choral singing (classically trained tenor)

Treatments and tests offered by Dr Tim Ambrose at Nuffield Health

  • Gastroesophageal
  • Blood test
  • Polypectomy
  • Gastroscopy (or gastrointestinal (GI) endoscopy)
  • Drug therapy
  • Therapeutic Endoscopy
  • Gluten sensitivity screening
  • Colorectal screening
  • Colonoscopy
  • Flexible sigmoidoscopy
  • Diagnostic endoscopy
  • Upper gastrointestinal endoscopy
  • Gastrointestinal tract

Locations Dr Tim Ambrose works with

Related experience




  • British Society of Gastroenterology
  • European Crohn’s and Colitis Organisation
  • British Association for Parenteral and Enteral Nutrition
  • Royal College of Physicians of London

Other posts held

  • Consultant Gastroenterologist, Oxford University Hospitals NHS Foundation Trust

Insurers Dr Tim Ambrose works with

Dr Tim Ambrose works with the following private medical insurance providers:

  • AXA Health
  • Benenden Health
  • Bupa
  • Bupa On Demand
  • Cigna
  • CS Healthcare
  • Exeter Family Friendly
  • Freedom Health
  • Healix
  • Health-on-Line
  • PHC
  • SecureHealth
  • The Exeter Friendly
  • Vitality Health (Pru Health)
  • Westfield Health WPA
  • WPA
  • Aviva Health


Dr Tim Ambrose does not hold a share or financial interest in this hospital, another Nuffield Health hospital or the company.

Dr Tim Ambrose does not have a share or financial interest in equipment used at this hospital or another Nuffield Health hospital.

Dr Tim Ambrose does not hold any paid advisory role(s) at this hospital or on behalf of Nuffield Health.