The Surgeons

The Bariatric Group has three weight loss surgeons who have passed the international assessment process of the American Society for Bariatric and Metabolic Surgery for Centres of Excellence in Bariatric Surgery. This translates into excellence of care for our clients.

The surgeons meet regularly as a team to discuss new approaches to patient care and to ensure that there is consistency of care across all of our surgery centres. Collectively they have performed over 2,500 bariatric surgery operations in the past three years. Mr Richard Welbourn is the Director of Surgery for the team.

The Bariatric Group is committed to the highest standards of treatment practice and all of our surgeons have experienced working in both the NHS and private sectors. Their commitment to the advancement of bariatric surgery also extends to the collecting and publishing data on our treatment outcomes and measuring the impact of the treatment on patients. Our team regularly presents data at UK and international medical conferences and several team members hold leadership positions on UK medical bodies such as the Royal College of Surgery, the British Obesity & Metabolic Surgery Society and the Association of Laparoscopic Surgeons.


Disclaimer: Please note that weight loss surgery results and benefits are unique to each individual and in such The Bariatric Group cannot guarantee specific weight loss goals as results for each surgery can vary. If you have any questions or would like to know more about weight loss surgery please contact our expert team.

Richard Welbourn

consultant Surgeon

Mr. Welbourn is a senior Bariatric surgeon at both the Musgrove Park Hospital and Nuffield Health Hospital in Taunton. He specialises in laparoscopic surgery of the stomach and upper gastrointestinal tract and regularly trains other surgeons in laparoscopic techniques, including Bariatric surgery. He has been performing obesity surgery operations since 2003, both within the NHS and private sectors. Mr. Welbourn is accredited by the American Society of Bariatric and Metabolic Surgery as meeting the criteria for a surgeon of a Centre of Excellence in Bariatric Surgery.

David Mahon

consultant Surgeon

Mr Mahon joined our team in 2006 and performs Bariatric surgery at both the Musgrove Park Hospital and Nuffield Health Hospital in Taunton. Mr Mahon is the Clinical Lead for Upper GI and Bariatric Surgery at Taunton and Somerset NHS Foundation Trust Somerset. Mr Mahon is accredited by the American Society of Bariatric and Metabolic Surgery as meeting the criteria for a surgeon of a Centre of Excellence in Bariatric Surgery.

For further information visit Mr Mahon's website by clicking on the link below.

Hamish Noble

consultant Surgeon

Mr Noble is a Consultant Upper Gastrointestinal and Bariatric surgeon at Musgrove Park Hospital and the Nuffield Health Hospital in Taunton. He has had an NHS practice since 2012 and joined the Bariatric Group in 2014. He trained in London and the South West and was awarded an MS from Imperial College. Prior to his consultant appointment he undertook a Royal College of Surgeons accredited bariatric fellowship at the Centre of Excellence in Taunton and was a visiting fellow at the renowned unit in Bruges.

Dan Titcomb

consultant Surgeon

Mr Titcomb joined the team in 2010 after being appointed a consultant upper GI surgeon at the Bristol Royal Infirmary. He spent time working at the Bariatric Surgery Centre of Excellence based in Musgrove Park Hospital Taunton. He was previously a substantive consultant in Gloucestershire, assisting in the development of their weight loss management service.

Having been awarded an AUGIS (Association of Upper GI Surgeons) travel fellowship in 2009, Mr. Titcomb worked at the Cancer Institute Hospital Tokyo, Japan, training in advanced minimally invasive upper GI surgery, as well as undertaking bariatric surgery training courses in Versailles and Gothenburg.

Mr Marcus Reddy

Consultant Surgeon

Mr. Marcus Reddy is a full time consultant upper GI surgeon and bariatric surgery to St George's Hospital. At St George's he performs gastric bands, sleeve gastrectomies and laparoscopic roux-en-Y gastric bypasses. He also chairs the weekly multidisciplinary team meeting and clinic.

Mr. Marcus Reddy covers the bariatric patient emergencies in the NHS and private sector with experience of dealing with slipped bands, port infections and emergency band removal. His endoscopy experience involves endoscoping patients with erosions, pouch dilatation, roux-en-Y loop sumps, disrupted VBG staple lines, pouch-jej strictures and stomal ulcers.

Nick Davies

Consultant Surgeon

Nick is an upper Gastrointestinal and bariatric surgeon at the Royal Bournemouth Hospital. He has been performing weight loss surgery since 2006 and is the Lead for the Bariatric service in Bournemouth. He has an interest in laparoscopic surgery and also works at the Poole private clinic.

Oliver Allenby-Smith

Consultant Surgeon

Following his medical degree in Southampton, Mr Allenby-Smith focused his career around upper gastrointestinal surgery. Training across the south coast specialist centres, he specialised in laparoscopic (key hole) surgery for a range of conditions. During his final years training, he further developed skills in laparoscopic weight loss surgery. Mr Allenby-Smith set up a private Bariatric Surgery service in Poole in 2011, working with colleagues to provide a comprehensive weight loss surgery service. Mr Allenby-Smith regularly gives educational presentations to local GPs about this complex specialty.



James is a consultant upper GI surgeon at the University Hospital Southampton, and was appointed in 2003 following an advanced fellowship in Brisbane Australia. He has been performing bariatric surgery for private and NHS patients since 2004. James performs gastric band, bypass and sleeve gastrectomy as well as revision surgery.He is a member of the council of the British Obesity and Metabolic Surgery Society, and is also an investigator on the BY-Band-Sleeve study.