MBBS, ECFMG, MRCS, MSc, MPhil, FRCS, MS, FEBS
Live bookings available
27 years of experience
London, SE1 9BS
(+4 more)
14 connections in healthcare
Skill endorsed
by Mr Yazan Masannat
Live bookings available
27 years of experience
London, SE1 9BS
(+4 more)
14 connections in healthcare
Skill endorsed
by Mr Yazan Masannat
Areas of expertise
Contact
Book online
I am a Consultant General Surgeon specialising in Laparoscopic General and Colorectal Surgery, with more than 25 years of postgraduate surgical experience. My NHS practice is based at Princess Royal University Hospital, part of King's College Hospital NHS Foundation Trust, where I provide both elective and emergency general and colorectal surgical care as a Consultant since 2016.
Alongside my NHS work, I see private patients at:
I graduated from the Medical School of Athens in 1999. In 2002, I successfully completed the United States Medical Licensing Examinations (USMLE). After completing my Core Surgical Training in England, I became a Member of the Royal College of Surgeons of England (MRCS) in 2006. I subsequently undertook academic research at the University of Cambridge, where I was awarded a Master of Philosophy (MPhil) in Surgery.
My Higher Surgical Training was completed through the Eastern Deanery and London Deanery National Training Programmes. I became a Fellow of the Royal College of Surgeons of England (FRCS) in 2014 and was awarded my Certificate of Completion of Training (CCT) in General Surgery in 2015.
I then undertook advanced subspecialty training at King's College Hospital, Medway Hospital, and Guy's and St Thomas' Hospitals, with a focus on complex gastrointestinal and minimally invasive laparoscopic surgery. In 2015, I was awarded a Travelling Fellowship by the Association of Coloproctology of Great Britain and Ireland (ACPGBI) to train at Memorial Sloan Kettering Cancer Center, gaining further experience in advanced oncological colorectal practice.
In 2016, I completed a Post-CCT Fellowship (RSO) at St Mark's Hospital, The National Bowel Hospital, where I further developed specialist expertise in colorectal cancer, inflammatory bowel disease, pelvic floor disorders, intestinal failure, and complex abdominal surgery.
I am JAG-accredited in diagnostic and therapeutic endoscopy. I hold a Master of Science (MSc) in Perioperative Care from Cardiff University and a Master of Surgery (MS) in Coloproctology from the University of East Anglia. After successfully passing the European Board of Coloproctology examinations in 2017, I was admitted as a Fellow of the Board (FEBS).
I have published extensively in peer-reviewed journals and surgical textbooks and regularly present my work at national and international conferences. I am also deeply committed to surgical education and currently serve as Training Faculty Lead and College Tutor for the Royal College of Surgeons of England.
My approach to care is patient-focused, evidence-based, and centred on clear communication. I take time to listen carefully, explain diagnoses and treatment options in an accessible way, and involve patients fully in shared decision-making. Wherever appropriate, I use minimally invasive (keyhole) techniques to support faster recovery and excellent long-term outcomes. Patient safety, continuity of care, and compassionate support are central to my practice.
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General Medical Council
No. 6065502
University of Athens
Medicine
Graduated 1999
Qualifications
Additional training
Post-CCT Fellowship (RSO) Bowel cancer, Pelvic floor, Intestinal Failure St Mark's Hospital and Academic Institute 2016
Professional Memberships:
New appointment
£240Follow-up appointment
£150St Thomas Street, London, United Kingdom, SE1 9BS
40-42 Lee Terrace, London, United Kingdom, SE3 9UD
Bucks Cross Road Chelsfield, Orpington, United Kingdom, BR6 7RG
125 Albemarle Road, Beckenham, United Kingdom, BR3 5HS
40 Bank Street, London, United Kingdom, E14 5NR
Areas of expertise
Contact
Book online
This summary was created by AI based on recent reviews
Mr Efthymios Ypsilantis is professional and reassuring. He makes patients comfortable and gives clear details about their care. Mr Ypsilantis provides individualised, thoughtful treatment, helping patients feel safe and confident. Feedback notes his skill with haemorrhoids, colonoscopy, and anal fistula concerns.
I had recently required Mr Ypsilantis's help in his capacity as a Colorectal Surgeon. He spent the time to fully explain the procedure he felt most appropriate to treat my condition, together with what the recovery period would entail. At all time he came across as caring and extremely professional, answering all my questions and concerns. The procedure went as described and having now gone through the recovery cycle, exactly as he described. I am now fully recovered and feeling the benefits of the extremely high quality of care Mr Ypsilantis has given. Big Thanks
Mr Ypsilantis was incredibly polite and professional, he explained everything very clearly , he made the whole appointment very easy and stress free.
Mr Ypsilantis has a great manner and explains things extremely clearly. He explains all options which demonstrates that he is really looking hard for the best outcome
Mr Ipsilantis was very understanding of my concerns and explained the options very clearly. I left happy and reassured.
From the start to the finish Mr Ypsilantis was first class. Really easy to talk to and very friendly. If I get another hernia he’ll be the guy I call.
Extremely competent and friendly. I had to go for a colonoscopy and was a bit worried about the procedure, but from the first consultation, the actual procedure and the follow-up everything was just perfect - no pain at all and all very well explained. Very positive experience.
Dr Ysilantis helped me to overcome a perianal abscess. Dr Ysilantis has been extremely knowledgeable and professional, with a very clear communication. Explained me very well all the steps I needed to take and the potential risks I was going to encounter.
Excellent surgeon and colleague
29 Mar 2026
Mr Yazan Masannat
Breast Surgeon
Read articles from Mr Efthymios Ypsilantis explaining process of procedures and other important things you should know before choosing your provider.

An overview of the status of colorectal surgery training across the world: Variations and opportunities.
05 January 2026
thieme-connect.de

A clinical paper on usefulness of insertion of self-expanding colonic stents in obstructing colon cancer
07 July 2025
pmc.ncbi.nlm.nih.gov
What are Mr Efthymios Ypsilantis's reviews like?
Mr Efthymios Ypsilantis's overall patient rating is 4.98 out of 5 stars on Doctify. This is based on 37 reviews.
What languages does Mr Efthymios Ypsilantis speak?
Mr Efthymios Ypsilantis speaks English and Greek
Where is Mr Efthymios Ypsilantis located?
Mr Efthymios Ypsilantis primarily practices at HCA UK at The Shard, located at St Thomas Street, London, United Kingdom, SE1 9BS
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Does Mr Efthymios Ypsilantis accept new patients?
Mr Efthymios Ypsilantis generally accepts new patients.
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