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Dr Jamal Hayat
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Dr Hayat completed his specialist gastroenterology training in London, during which he undertook an MD research degree into the use of advanced diagnostic techniques in upper GI disease presenting his work nationally and internationally and publishing in a number of high impacts scientific journals.

Dr Hayat runs a specialist clinic for patients with upper GI problems such as reflux disease/indigestion and swallowing disorders. He runs the GI physiology lab at St George's Hospital performing high-resolution oesophageal manometry and ambulatory impedance-pH monitoring as well as being an experienced JAG accredited endoscopist and endoscopy trainer.

His clinical practice encompasses the diagnosis and management of patients with anaemia, altered bowel habit including detection and assessment of irritable bowel syndrome, inflammatory bowel disease and gastrointestinal cancers such as stomach cancer and bowel cancer.

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Medical Procedures

  • endoscopy
  • colonoscopy
  • sigmoidoscopy
  • Colorectal cancer screening
  • bowel cancer screening
  • Oesophageal manometry
  • 24 hour pH monitoring
  • wireless pH monitoring (Bravo)

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Special Interests

  • Gastro-oesophageal reflux disease
  • indigestion
  • heartburn
  • acid reflux
  • regurgitation
  • oesophagitis
  • oesophageal cancer
  • Barrett's Oesophagus
  • achalasia
  • hiatus hernia
  • Laryngopharyngeal reflux
  • hoarseness
  • throat clearing
  • globus
  • lump in the throat
  • Swallowing disorders
  • dysphagia
  • oesophageal spasm
  • non-cardiac chest pain
  • Abdominal pain
  • dyspepsia
  • bloating
  • food intolerances
  • bacterial overgrowth
  • Altered bowel habit
  • Diarrhoea
  • Constipation
  • rectal bleeding
  • Inflammatory Bowel Disease
  • ulcerative colitis
  • Crohns
  • Coeliac disease
  • weight loss
  • anaemia
  • iron deficiency



  • MB BS (London) Imperial College School of Medicine 2002
  • BSc Imperial College 2001


  • British Society of Gastroenterology
  • British Medical Association
  • American Gastroenterological Association
  • Medical Defense Union
  • European Society of Eosinophilic Oesophagitis



I am writing to let you know about my recent experience in the Endoscopy Unit in St James Wing. I have a rare swallowing disorder called Achalasia and my Consultant Dr Hayat had promptly arranged for me to have an endoscopy into my stomach to investigate the increase in the pain that I had been having. I was nervous about the procedure and Dr Hayat and his team of nurses, particularly Nikos, Jane and Kitz, could not have treated me better. They were all so kind in explaining everything and went out of their way to put me at ease, before and during the Endoscopy. Dr Hayat was extremely thorough and as a result was able to give me the appropriate medications to help. I felt that I received outstanding care from Dr Hayat and his team. Thank you so much.