Sanjay Agrawal

Consultant Bariatric, Laparoscopic and Upper GI Surgeon

, London

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Sanjay Agrawal: Obesity Surgeon in London, Essex and Hertfordshire

Mr Sanjay Agrawal is an experienced Senior Consultant Surgeon specialising in bariatric (obesity/weight loss) surgery, with a particular focus on gastric sleeve surgery. The only obesity surgeon in the UK to be designated as ‘Master Surgeon in Metabolic and Bariatric Surgery’ by Surgical Review Corporation of USA, he is available for consultation at the Harley Street Obesity Clinic in London and at various private hospitals in London, Essex and Hertfordshire.


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Training and experience

Mr Sanjay Agrawal is a Consultant Bariatric Surgeon & Clinical Lead of Bariatric Surgery at Homerton University Hospital in London. He is also Honorary Senior Lecturer at the Blizard Institute in Barts and The London School of Medicine and Dentistry, Queen Mary, University of London.

Mr Agrawal is Director of London International Bariatric Surgery Symposium (LIBSS).

Mr Agrawal is Editor-in-Chief for a book titled ‘Obesity, Bariatric & Metabolic Surgery: A Practical Guide’ (Springer, 2015). The book has achieved in the region of 250,000 combined chapter downloads electronically worldwide so to date. Under his editorship, a 2nd edition of this book titled ‘Obesity, Bariatric & Metabolic Surgery: A Comprehensive Guide’ was released in 2023. This 2nd edition is part of the prestigious Springer Nature’s Major Reference Works (MRW) program.

Mr Agrawal has been designated as ‘Master Surgeon in Metabolic and Bariatric Surgery’ (MSMBS) by Surgical Review Corporation of USA since 2012. Previously called ‘Surgeon of Excellence in Metabolic and Bariatric Surgery’ (SOEMBS) and ‘Bariatric Surgeon of Excellence’ (BSOE), this designation is regarded worldwide as a marker of quality assurance in patient care and underscores his long-term commitment to high standards of treatment. He is also a Fellow of the American Society for Metabolic & Bariatric Surgery (FASMBS).

Mr Agrawal has the honour of being the first Post-CCT Fellow in Bariatric and Upper GI Surgery awarded under the National Surgical Fellowship Scheme through the Royal College of Surgeons of England in the year 2009-10. He was awarded Association of Surgeons in Training (ASiT) Bariatric Fellowship with Dr Bruno Dillemans in Brugge (Bruges), Belgium for 3months in 2009. He was also awarded Ethicon Short Term Clinical Visit Grant by the Royal College of Surgeons of Edinburgh for the Gastric Fellowship at National Cancer Center & Cancer Institute Hospital in Tokyo, Japan in 2008.

Mr Agrawal trains other surgeons in bariatric and laparoscopic surgery and has made over 100 presentations at national and international meetings. He also has over 100 publications in peer-reviewed journals.

Mr Agrawal has served as Faculty in different capacities (Chair / Moderator / Speaker / Live Demonstrator) in multiple national and international meetings.


Mr Agrawal has undergone extensive training in the UK, Belgium, Japan and India and has completed over 1750 laparoscopic (keyhole) bariatric procedures to date. He performs more than 100 bariatric operations per year, the majority these days being sleeve gastrectomy for obesity. His outcomes are excellent, with zero patient mortality following surgery.

Mr Agrawal is also experienced in general and upper gastrointestinal surgery, including anti-reflux, gallstone and hernia surgery, completing more than 2500 such procedures to date.

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Weight loss treatments

Gastric sleeve surgery

Also known as sleeve gastrectomy, gastric sleeve surgery is a procedure to reduce the size of the stomach by approximately 75-85%. Reducing the size of the stomach not only restricts the amount that can be eaten, but also reduces the appetite by decreasing the production of appetite stimulating hormones in the stomach.

Gastric sleeve surgery is performed laparoscopically through four or five small keyhole incisions. It takes one to two hours under general anaesthetic. The remaining portion of stomach is shaped into a sleeve or tube about the size of a banana and sealed using staples. Recovery time is two to three weeks including a post-surgery stay in hospital of two to three days.

On average, a person will lose 60-70% of their excess body weight within a year of gastric sleeve surgery. There are no dietary restrictions following gastric sleeve surgery, however, to enjoy the maximum benefits of the surgery, it is important to follow a healthy diet plan and consume meals that contain less fat.

Other weight loss options

Mr Agrawal also performs gastric band surgery and gastric bypass surgery.

Gastric band surgery involves placement of a band around the stomach, which helps reduce food intake and results in a quicker sensation of fullness. It is a reversible process resulting in 50-60% excess weight loss.

Gastric bypass is a procedure to reduce the size of the stomach and reroute a portion of the digestive system. This results in restricted meal portions and the body absorbing less food. It is a non-reversible process resulting in 70-80% weight loss.

Your weight loss journey

Mr Agrawal and his team are committed to providing total support throughout your weight loss journey:

  • Contact the team – and arrange your appointment with Mr Sanjay Agrawal
  • Your Plan – at your consultation, Mr Agrawal will help you find the right weight loss solution and provide you with honest and open advice about your surgery
  • Your Team – Mr Agrawal, his dietician and nursing team will fully prepare and support you for surgery
  • Your Care – Mr Agrawal and his specialist care team will ensure that all your needs are met during your hospital stay
  • The New You – Mr Agrawal’s excellent aftercare and support team are available to you following surgery, working with you to ensure that you achieve your desired and well-earned results

Exclusive Facebook Support Group

The Weight Loss Support Group is a private Facebook group run by people who have previously had surgery with Mr Agrawal. A unique forum of discussion, it offers the perfect opportunity for those who are considering or awaiting surgery to find out more, as well as providing a safe, friendly space for those who are already on their post-surgical journey.


The all-inclusive package prices offered by Mr Agrawal differ from hospital to hospital, but all are very competitive and among the lowest to be found nationally:

Gastric sleeve surgery

From £9,950 (Circle The London Independent Hospital)

Gastric band surgery

From £7267 (Rivers Hospital)

Gastric bypass

From £12,310 (Spire London East Hospital)

Package prices include:

  • 3 appointments with Mr Agrawal in the first year
  • 2 dietitian appointments in the first year
  • Unlimited access to Mr Agrawal and dietitian for support while in hospital
  • Personalised dietary care advice
  • Exclusive access to peer support via private Facebook group
  • Exclusive access to monthly support group meetings with the bariatric team
  • Access to the weight loss social media community
  • Every day telephone support and advice

Getting treatment

All the private hospitals that Dr Agrawal works with in London, Essex and Hertfordshire are equipped with the latest state-of-the-art technology, allowing him to offer the highest quality treatment.

A consultation with Mr Agrawal to discuss treatment can be made at any of the hospitals listed by calling his private secretary on 07876 618 424 or by email at

In the media

Mr Agrawal has featured on Channel 4 Dispatches, Channel 4’s Embarrassing Fat Bodies and Channel 4’s Embarrassing Bodies talking about obesity-related matters.

Research interests

Mr Agrawal’s main areas of research interest are in obesity/weight loss surgery, in particular in investigating outcomes and complications of the surgery from a clinical perspective.

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What patients say about Sanjay Agrawal

Mr Agrawal explained the procedures and types of of procedure, and which one I could go for. He was very down to earth and straight forward, I found it very pleasant - Jane, gastric sleeve surgery

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