Dr David Simon is a Consultant Gastroenterologist and Advanced Endoscopist at Imperial College Healthcare NHS Trust, one of the UK’s leading academic hospital groups. He provides expert Private Gastroenterology care for patients experiencing a wide range of digestive symptoms and gastrointestinal conditions.
Dr Simon specialises in the diagnosis, investigation and treatment of disorders affecting the digestive system, including bloating, diarrhoea, abdominal pain, acid reflux (GORD), dyspepsia, anaemia and small intestinal bacterial overgrowth (SIBO). He is known for his patient-centred approach, combining clinical expertise with clear, reassuring communication to help patients understand their condition and treatment options.
Alongside his general gastroenterology practice, Dr Simon has a specialist interest in pancreatic and biliary (hepatopancreatobiliary) diseases, including conditions affecting the pancreas, bile ducts and gallbladder. He trained in both Paris and London and has extensive experience in advanced diagnostic and therapeutic endoscopy.
Dr Simon performs more than 1,000 endoscopic procedures each year, including gastroscopy, colonoscopy, endoscopic ultrasound (EUS) and endoscopic retrograde cholangiopancreatography (ERCP). At Imperial College Healthcare NHS Trust, he has developed and expanded the therapeutic EUS service, offering minimally invasive alternatives to surgery for patients with complex pancreatic and biliary disorders, particularly where conventional surgical approaches may be high risk or avoidable.
Conditions he sees patients for:
- Bloating and excessive gas
- Diarrhoea and altered bowel habit
- Abdominal pain
- Acid reflux (GORD)
- Dyspepsia and indigestion
- Small intestinal bacterial overgrowth (SIBO)
- Irritable bowel syndrome (IBS)
- Anaemia related to gastrointestinal conditions
- Gallstones
- Bile duct stones
- Pancreatic cysts
- Pancreatic cancer
- Bile duct strictures
- Cholangiocarcinoma
- Acute pancreatitis
- Chronic pancreatitis
- Jaundice
- Disorders of the pancreas
- Disorders of the bile ducts
- Gallbladder conditions
Advanced Endoscopy Techniques
- Therapeutic endoscopic ultrasound (EUS)
- Endoscopic retrograde cholangiopancreatography (ERCP)
- Endoscopic dilatation of gastrointestinal strictures
- Endoscopic stenting of the gastrointestinal tract
- Complex polyp removal (advanced polypectomy)
- English
- Arabic
- French
- British Society of Gastroenterology (BSG)
- Member of the BSG Pancreas clinical research group (CRG)
- Société Nationale Française de Gastroentérologie (SNFGE)
- Association Française pour l’Étude du Foie (AFEF)
- European Society of Gastrointestinal Endoscopy (ESGE)