Mr Dimitri Pournaras

Consultant Upper GI and Bariatric Surgeon


I am a Consultant Upper Gastrointestinal and Bariatric Surgeon at Spire Bristol Hospital. I have dedicated my career in the treatment of obesity and obesity associated diseases.  

Working with Verve Health Group at Spire, I provide all types of laparoscopic (keyhole) obesity surgery procedures including gastric bypass, sleeve gastrectomy and gastric banding and revision procedures.

My training has taken me from the southwest of England to Cambridge, Norwich, Sweden and Japan with a PhD from Imperial College London.  Committed to world class research in the field of obesity care starting with demonstrating how bariatric surgery works and ultimately aiming to identify the appropriate combination of treatments for obesity personalised to individual patients.  I collaborate with colleagues from all over the world in research and contribute to training events nationally and globally.  My scientific research is a continuation of my work as a doctor and defines my interactions with people living with obesity on a daily basis.

Verve Health Group is dedicated to multidisciplinary working practices that include experts in bariatric surgery, dietetics, psychology, anaesthetics, pharmacology and radiology who provide a holistic package and outstanding support throughout this life changing process. The team at Spire Bristol Hospital provides state-of-the-art perioperative care in the largest private hospital in the South West.

My NHS practise is at Southmead Hospital, Bristol which is the regional tertiary referral Bariatric centre.

I also provide laparoscopic surgery for upper GI surgery and particularly gallstone disease usually performed as day case or enhanced recovery short stay.


Treatment information

Some of the principal treatments carried out by Mr Dimitri Pournaras at Spire include:

General surgery


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Additional information

General surgery
Obesity surgery

Laparoscopic (keyhole) gastrointestinal surgery, management of gallstone disease and gastro-oesophageal reflux, surgical treatment of obesity and diabetes as part of multi-modal care

PhD / Imperial College London / 2012
Department of Investigative Medicine

Fellowship / Royal College of Surgeons of England / 2015
Bariatric and Metabolic Surgery

CCT / UK / 2016
General Surgery

Professional memberships

British Obesity and Metabolic Surgery Society (BOMSS)

) International Federation of Surgery for Obesity (IFSO)

Royal College of Surgeons of England (FRCS)

Association of Upper GI surgeons (AUGIS)

Professional leadership

British Obesity and Metabolic Surgery Society/Royal College of Surgeons of England Surgical Specialty
Lead for Bariatric and Metabolic Surgery

North Bristol NHS Trust