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Professor Sanjay PurkayasthaGeneral, Upper GI and Bariatric Surgeon in Central London
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Professor Sanjay Purkayastha

General, Upper GI and Bariatric Surgeon in Central London and W1G Marylebone London

BSc (hons) MBBS (hons) MRCS (Eng) MD FRCS (Gen Surg)
GMC: 4733975

5.0122reviewsReview

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Expert in:
Upper GI surgery
Laparoscopy
Bariatric surgery
Hernia
Weight loss
Cholelithiasis (gallstones)
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Professional statement

Professor Sanjay Purkayastha is a consultant general surgeon with a specialist interest in bariatric and upper GI (gastrointestinal) surgery.

He regularly performs laparoscopic (keyhole) procedures for a wide variety of conditions. Patients seeking a highly trained and skilled bariatric surgeon can benefit from his leading expertise in all procedures in surgical weight loss management, including gastric bands, sleeve gastrectomies, gastric bypasses. He also provides the surgical management of type 2 diabetes.

Aside from bariatric and metabolic surgery, he is also extensively trained and practiced in upper and lower GI surgery for benign disease, anti-reflux surgery and surgery for all varieties of hernia. Patients often seek his first-class surgical care for conditions such as diverticulitis, achalasia, bowel obstruction, pancreatitis and gallstones, among other conditions. What's more, he is a digital and robotic surgery entrepreneur: Mr Purkayastha was one of the first surgeons in the UK to carry out robotic bariatric surgery.

He trained at Saint Mary’s Hospital Medical School and the Imperial School of Medicine London where he completed his BSc in 1997, MBBS in 2000 and his MD in 2007. He obtained his MRCS in 2004 and FRCS in 2010 from The Royal College of Surgeons of England. Throughout his training, he was awarded numerous times for excellence in teaching and patient care. He has also spent time during his training in the US at renowned centres such as Cook Country Hospital, the Cleveland Clinic and the Mayo Clinic.

More recently, during the Covid-19 pandemic, Professor Purkayastha and a GP colleague teamed up with Hollywood actor Thandie Newton in a campaign to provide one million surgical masks to care homes free of charge. He also worked closely with fashion retailer Burberry to provide St Mary's Hospital with one tonne of surgical gowns to help with the shortfall of PPE protection during the peak of the coronavirus pandemic. During the current Covid-19 surge, Mr Purkayastha has collaborated with Mr John Vincent and LEON to provide more than 300 meals per day for the ICU staff at St Mary's Hospital.

Professor Purkayastha is an avid researcher and educator. He has published over 250 peer-reviewed papers and nearly 8000 citations. 

Clinics

Welbeck Digestive Surgery
  • Welbeck Digestive Surgery profile image

    Welbeck Digestive Health

    Central London, 1 Welbeck St, London W1G 0AR, UK

    Medical insurances accepted

    I'm paying for myself

Credentials

Professional experience

  • 26 years of experience
  • Consultant General, Upper GI and Bariatric Surgeon at Imperial College Healthcare NHS Trust (present)
  • Consultant General Surgeon, Lindo wing , Central London (present)
  • Consultant General Surgeon, Welbeck Digestive Surgery, Central London (present)
  • Consultant General Surgeon, King Edward VII's Hospital, Central London (present)
View more

Subspecialties

  • Upper GI (gastrointestinal) surgery
  • Laparoscopic surgery
  • Bariatric surgery
  • Hernia
  • Weight loss
  • Gallstones
  • Abdominal pain
  • Abdominal conditions
  • Medico-Legal
  • Second opinion
  • Obesity
  • Trauma surgery
  • Ingastric balloon
  • Gastric band
  • Gastric bypass
  • Mini gastric bypass
  • Sleeve gastrectomies
  • Robotic surgery
  • Appendicitis
  • Pancreatitis
  • Bowel obstruction
  • Heartburn (gastro oesophageal reflux, GORD)
  • Gastroparesis
  • Diverticulitis
  • Achalasia
  • Benign hepatobiliary disease
View more

Professional memberships

  • Association of Upper Gastrointestinal Surgery (AUGIS) of Great Britain and Ireland
  • British Obesity & Metabolic Surgery Society (BOMSS)
  • International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO)
  • American Society of Metabolic and Bariatric Surgeons (ASMBS)
  • National Bariatric Surgery Registry Data Sharing
  • Royal College of Surgeons, England
View more

Education

  • FRCS (Gen Surg) Royal College of Surgeons England (2010)
  • MD University of London (2007)
  • MRCS (Eng) (2004)
  • MBBS (Hons) Imperial College (2000)
  • BSc (Hons) Imperial College (1997)
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Teaching posts

  • Honorary Professor, Brunel University (present)

Positions in organisations

  • Co-Founder and Chief Medical Officer of 1 World Medical, an initiative based on protecting healthcare colleagues, key workers and essential workers by sourcing high quality and certified PPE worldwide.
  • Co-Founder of Touch Surgery, the world’s largest, most disseminated interactive mobile educational platform for surgical procedure related education and assessment, with over 2 million users.

Publications and conferences

  • Professor Sanjay Purkayastha is featured in BBC Two series 'Your Body Uncovered with Kate Garraway', operating on a patient who has gallstone attacks.  
  • Professor Sanjay Purkayastha has been featured in the Daily Mail for his work with 1 World Medical: "A million masks! NHS duo team up with actress and Mail Force to deliver PPE"
  • SARS-CoV-2 and Obesity: “CoVesity” - A Pandemic Within A Pandemic. Kimberley Zakka, Swathikan Chidambaram, Sami Mansour, Kamal Mahawar, Paulina Salminen, Ramos Almino, Philip Schauer, James Kinross, Sanjay Purkayastha
  • Bariatric surgery is linked to significantly fewer heart attacks and strokes (2020)
  • Digital Surgery Deploys First Surgical Artificial Intelligence System for the Operating Room. Breakthrough Development Brings First “Satellite Navigation” to Surgery; Shaping the Future of Surgical Care with Data-Driven AI and Computer Vision. (2018)
  • Robot surgeons lack tactile sensation to replace humans. (2019)
  • He has published over 250 peer-reviewed papers and nearly 8000 citations.
  • Professor Purkayastha's work is published on ReseachGate.
View more

Languages spoken

  • Bengali
  • English
Registration number: 4733975

Reviews

All reviews are from real patients and have been verified by our Customer Service department to ensure they meet our guidelines. Rules of the service

122 reviews

5.0

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  • A top Doctor among Top Doctors.
    14 April 2026

    C.L.

    Verified patient
  • Professor Purkayastha has been excellent from start to finish. His bedside manner immediately put me at ease, and he explained everything clearly and calmly. I felt fully informed and supported throughout. At six weeks post-op, everything has gone exactly as he said it would and the outcome has been excellent. I’m extremely grateful for his expertise and care, and would highly recommend him.
    24 February 2026

    S.R.

    Verified patient
  • Professional, kind, informative, friendly and make me feel at ease. I had an excellent patient experience and will certainly recommend Prof Sanjay Purkayastha to my friends and family.
    16 February 2026

    R.J.

    Verified patient
  • Prof Purkayastha and his team including anaesthetist Alex and the whole Lindo Wing staff were exceptional. He probably had one of the most anxious patients yet managed to calm me down and gain confidence. Dr Purkayastha has helped me and explained everything so well. Thank you for looking out for me and performing a surgery I was scared of but making it feel minimal. I can barely see the scars on my body! To the Lindo Wing staff, thank you for looking after me overnight and just being lovely!
    16 February 2026

    D.D.

    Verified patient
  • 5 February 2026

    C.L.

    Verified patient
  • I’ve had an excellent experience with Prof Purkayastha - efficient communication and planning of pre-surgery steps, painless and stress free surgery and quick recovery with excellent aftercare as needed.
    4 February 2026

    C.F.

    Verified patient
  • Prof Purkayastha has treated me in an emergency situation and I felt at every step extremely well looked after and am thankful to have him as my doctor.
    4 February 2026

    F.N.

    Verified patient
  • Professor Purkayastha was reassuring and professional during the many consultations I had and later when I went into the hospital for surgery. He gave clear explanations and was very thorough throughout the process, making clear all the benefits and risks of the surgery. His anaesthetist, Dr Alex Wickham, was also charming, reassuring and thorough. The surgery went extremely well and I felt safe, well cared for and in excellent, skilled hands throughout. Thank you Professor P.
    2 February 2026

    L.W.

    Verified patient
  • I was provided with excellent informative and caring service from start to finish by Professor Purkayastha and his team and would thoroughly recommend him to anyone considering a digestive system operation.
    19 November 2025

    M.C.

    Verified patient
  • Prof Sanjay preformed my 'Linx Device' & Hiatus Hernia repair surgery with Alex Wickham as consultant anaesthetist. I feel extremely lucky to have be in the care of Prof Sanjay and Alex, the level of skill and care was unbeatable, seriously life changing for me. Highly recommend
    10 November 2025

    W.C.

    Verified patient
View all reviews

Treatments

The doctor is expert in

Bariatric surgery

Cholelithiasis (gallstones)

Hernia

Laparoscopy

Upper GI surgery

Weight loss

The doctor also specialises in:

Abdominal pain

Abdominal wall reconstruction

Achalasia

Acid reflux

Adenomyosis

Anal abscess

Anal fissure

Anal fistula

Anal fistula surgery

Appendicitis

Frequently Asked Questions

What is Professor Sanjay Purkayastha's specialty?

Professor Sanjay Purkayastha is a consultant specialising in Surgery, with extensive experience in assessing and treating patients within this field.

Which conditions and treatments does Professor Sanjay Purkayastha specialise in?

Professor Sanjay Purkayastha is a surgeon who provides assessment and treatment for Laparoscopy, Cholelithiasis (gallstones), Weight loss, Bariatric surgery, Hernia and Upper GI surgery. During your consultation, you will be informed of the most suitable options following a personalised evaluation.

How many years of experience does Professor Sanjay Purkayastha have?

Professor Sanjay Purkayastha has 26 years of professional experience as a consultant surgeon, providing specialist assessment and treatment in this medical field.

What do patients say about Professor Sanjay Purkayastha?

Patients give a rating of 5.0 out of 5 to Professor Sanjay Purkayastha, a score considered excellent. This average is based on 122 verified patient reviews, reflecting the experience of those who have attended an appointment.

Are Professor Sanjay Purkayastha's reviews verified?

Yes. All Professor Sanjay Purkayastha's reviews come from verified patients who have attended either an in-person or an e-Consultation appointment. We use a system that ensures authenticity and prevents fake reviews. Some profiles may also display reviews from other platforms, which follow their own verification policies, with the source always clearly indicated.

Where does Professor Sanjay Purkayastha practise?

Professor Sanjay Purkayastha practices in the following locations:

  • Central London at 1 Welbeck St, London W1G 0AR, UK
  • W1G Marylebone London at 5-10 Beaumont Street
  • Central London at Praed Street, Paddington

In-person consultations are available at these locations as a Surgery.

How can I book an appointment with Professor Sanjay Purkayastha?

You can book an appointment with Professor Sanjay Purkayastha directly from this page by selecting the time that suits you best. Alternatively, you can call the phone number shown if you prefer personalised assistance.

Does Professor Sanjay Purkayastha see NHS patients?

Many specialists featured on Top Doctors also hold NHS positions. However, appointments arranged for Professor Sanjay Purkayastha through this platform are private, either self-pay or covered by private medical insurance.

Does Professor Sanjay Purkayastha offer private appointments?

Yes, Professor Sanjay Purkayastha offers private appointments for patients seeking flexible and direct access to a consultant surgeon.

Does Professor Sanjay Purkayastha offer online consultations?

Yes, Professor Sanjay Purkayastha offers online consultations. You can book an appointment directly from this page by selecting the date and time that suit you best. Personalised assistance is also available by calling the number displayed on this page.

Does Professor Sanjay Purkayastha accept insurance?

At the moment, Professor Sanjay Purkayastha offers consultations on a private, self-pay basis only.

What is Professor Sanjay Purkayastha's availability?

Professor Sanjay Purkayastha's availability depends on the appointment slots open at any given time. On this page, you can check current availability, and if no slots are shown, you can request an appointment or contact the practice directly.

What payment methods does Professor Sanjay Purkayastha offer?

You can pay for your consultation with Professor Sanjay Purkayastha using the following methods: Self-paying.

What languages does Professor Sanjay Purkayastha speak?

Professor Sanjay Purkayastha is a surgeon who offers consultations in Bengali and English.

How is Professor Sanjay Purkayastha selected to appear on this platform?

All doctors listed on Top Doctors, including Professor Sanjay Purkayastha, undergo our rigorous selection process. Only one in five specialists meets the required standards to be included.
Discover Top Doctors' rigorous medical selection process.
The doctor, or where applicable the hospital or medical centre in which the doctor provides services, undertakes to keep the information relating to the prices of services published on their profile on the Top Doctors platform up to date at all times, ensuring that such prices correspond to those effectively charged to patients. In the event of any discrepancy between the published price and the price ultimately charged to the patient, the doctor and/or the relevant hospital or medical centre shall be solely liable towards the patient and towards Top Doctors for any claim or financial difference arising therefrom.

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Welbeck Digestive HealthCentral London, 1 Welbeck St, London W1G 0AR, UK
Payment methodSelf-paying
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