BSc (Hons), MBBS, FRCP, PhD
Gastroenterologist
Live bookings available
18 years of experience
London, SW19 5NX
(+1 more)
22 connections in healthcare
Skill endorsed
by Mr Andrea Scala, Miss Julie Kohls and 10 other professionals
Live bookings available
18 years of experience
London, SW19 5NX
(+1 more)
22 connections in healthcare
Skill endorsed
by Mr Andrea Scala, Miss Julie Kohls and 10 other professionals
Areas of expertise
Contact
Book online
Dr Marinos Pericleous is a Consultant Gastroenterologist with dual accreditation in Hepatology and General Internal Medicine. He currently holds a substantive consultant appointment at the Royal Surrey NHS Foundation Trust.
He undertook his undergraduate medical training at University College London and the Royal Free Medical School in London. His postgraduate training provided comprehensive experience across the full spectrum of gastroenterology, including complex luminal disease, clinical nutrition, gastrointestinal malignancy, inflammatory bowel disease, and advanced hepatology. He worked as a Senior Clinical Fellow at the ENETS Centre of Excellence at the Royal Free Hospital, developing specialist expertise in the diagnosis and management of neuroendocrine tumours of the gastrointestinal tract.
During higher specialist training, Dr Pericleous trained at the internationally renowned Sheila Sherlock Liver Centre and Liver Transplant Unit at the Royal Free Hospital. Through a nationally competitive selection process, he was appointed to the UK Advanced Training Programme in Hepatology and subsequently trained at the Institute of Liver Studies at King’s College Hospital, including the Liver Intensive Therapy Unit. He further consolidated his expertise through clinical posts at the specialist liver unit at St Mary’s Hospital, Paddington, and as a Visiting Fellow at the Yale–New Haven Liver Center in the United States.
Dr Pericleous has a strong academic and research profile. He completed doctoral research (PhD) in liver disease and has presented his work at regional, national, and international scientific meetings. He has authored multiple peer-reviewed publications spanning gastroenterology, hepatology, nutrition, and gastrointestinal oncology, including papers published in high-impact journals such as The Lancet Gastroenterology & Hepatology, The Lancet Public Health, and Gut. He has also contributed several book chapters and currently serves as Principal Investigator on multiple clinical trials in his field.
In addition to his clinical and academic roles, Dr Pericleous is a fully accredited endoscopist persistently exceeding national JAG quality standards. We runs weekly diagnostic, therapeutic and emergency endoscopy lists. He is also an accredited endoscopy trainer, and is actively involved in the training and supervision of endoscopy trainees. Dr Pericleous is also accredited in liver stiffness assessment using FibroScan®.
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General Medical Council
No. 6164392
University of London
Medicine
Graduated 2007
University of Surrey
Hepatology
Graduated 2024
PhD (hepatology)
FRCP
MBBS 2007 Royal Free and University College Medical School - merit
BSc (Hons) Neuroscience with Basic Medical Sciences University College London
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This summary was created by AI based on recent reviews
Dr Marinos Pericleous offers a caring, professional, thorough, and reassuring approach for patients. He explains complex conditions, test results, and treatment options; diagrams aid understanding. Procedures like endoscopies and colonoscopies show care, easing fears about diagnoses such as cancer. Patients report positive outcomes for many gastrointestinal issues, including fatty liver disease and cirrhosis.
Was excellent in every respect. Very good discussions and a clear plan of action which is being followed through, with explanation at every stage. I can’t speak too highly of the expertise and professionalism of Dr Marinos Pericleous.
Dr Pericleous put me at my ease taking interest in me as a person, not as someone on a conveyor belt of patients. His ideas on managing my situation were practical and are already in hand.
He is an amazing person and doctor. Went through the procedure in detail along with the pro’s and con’s. Helped me reach a conclusion and has been following up for my care.
Everything you could wish for from a consultant: listens well, calm and reassuring, comprehensive knowledge, takes the time to explain things and offers you options whilst providing clear recommendations. .
Dr Pericleous was an absolute amazing consultant. He was very patient and i never felt rushed. Nothing seemed to be too much trouble and he was very thorough in his investigations. I would highly recommend him.
I recently had a consultation with Dr. Marinos Pericleous and cannot recommend him highly enough. The entire experience was excellent; he is incredibly friendly, professional, and thorough. During the appointment, he performed procedures with great care and took the time to explain every step. I was particularly impressed by how thoroughly he shared and explained my test results, ensuring all of my questions were answered clearly. I am happy to have found a doctor who balances clinical excellence with such a supportive bedside manner.
My whole experience, from my initial contact with Dr Pericleous's secretary, through my procedure and follow up consultation, I have been extremely well looked after. The whole process was efficient, professional, and thorough. Dr Pericleous explained everything very clearly and gave me time to ask questions and answered them fully and clearly. Thank you.
I had the most wonderful and reassuring consultation with Dr Pericleous. He put me at my ease right from the outset. Being told that you may have cancer is a most disturbing and dispiriting experience. However, Dr Pericleous explained everything clearly and succinctly using terms that were very easy to understand.
Caring staff and Dr Pericleous went out of his way to alleviate my fears of cancer the aneithetist also fabulous in relaying fears just first class Though I ended up with £ 100 fine for parking which was unexpected 🥴
My whole hospital experience at Royal Surrey was excellent. Dr. Pericleous kept me informed throughout my stay and ensured I knew the steps required in my treatment plan. He reached out to my previous long time consultant at a London hospital and updated me on conversations that were ongoing. I was admitted to Royal Surrey through A&E and all my medical concerns were dealt with. I liked Dr. Pericleous’s mantra -we have a plan for you -one day at a time. Thank you for the first class professionalism and expertise.

Mr Andrea Scala
General SurgeonDr Pericleous is an excellent Gastroenterologist. His patients are always well looked after.
09 Oct 2025
Miss Julie Kohls
Orthopaedic SurgeonA leading expert
17 Aug 2025
Dr Christos Mikropoulos
OncologistDr Pericleous is a well respected Gastroenterologist with a wealth of knowledge and a reputation for providing great service to his patients
29 Jul 2025
Dr. Syed Hassan
Respiratory DoctorWhat are Dr Marinos Pericleous's reviews like?
Dr Marinos Pericleous's overall patient rating is 4.98 out of 5 stars on Doctify. This is based on 118 reviews.
What languages does Dr Marinos Pericleous speak?
Dr Marinos Pericleous speaks English and Greek
Where is Dr Marinos Pericleous located?
Dr Marinos Pericleous primarily practices at Nuffield Health Parkside Hospital, located at 53 Parkside Wimbledon, London, United Kingdom, SW19 5NX
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What are Dr Marinos Pericleous working hours?
Dr Marinos Pericleous is working Monday (18:00 - 20:45, 17:30 - 19:30), Tuesday (14:00 - 19:30), Wednesday (18:00 - 20:45, 18:00 - 20:45), Friday (18:00 - 20:45, 18:00 - 20:45), Saturday (08:00 - 12:00)
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Does Dr Marinos Pericleous accept new patients?
Dr Marinos Pericleous generally accepts new patients.
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