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Mr John Loy

General Surgery London

Mr John Loy

9 years of experience

7,253+
Patients seen
9
Years in practice
5
Publications
1
Languages spoken

PROFILE SUMMARY

About Mr John Loy at a glance

Mr John Loy is a General Surgery practitioner based in London, United Kingdom, practising at Universidad de Navarra Teaching Hospital. They have 24+ years of clinical experience. Procedures focus on gp consultation, annual physical exam, vaccination administration, minor procedure (skin). Educated at Universidad de Navarra (MD, 2013). Serves patients in London, United Kingdom and the surrounding area.

About

John Loy is a Consultant Upper GI and Bariatric (Weight Loss) Surgeon at The Homerton University Hospital in Central London.
Mr Loy completed his medical school in Belfast in 2002 and went on to complete his Higher surgical training in Severn Deanery, specialising in Upper GI and Bariatric (weight loss) surgery. He is trained to Royal College of Surgeons Fellowship level in weight loss surgery and advanced keyhole surgery.
He is the surgical teaching coordinator for Queen Mary University Barts and the London medical students at the Homerton University Hospital and collaborates on research into fatty liver disease in with the Blizzard Institute.
Mr Loy regularly appears in the media regarding weight loss surgery and is involved in training and assessing surgical doctors to perform bariatric surgery. Patients appreciate his person-centred friendly and approachable manner ensuring the best outcomes and patient satisfaction.

Diseases, Medical Tests and TreatmentsGastric Balloon

Gastric Banding
Gastric Bypass
Gastric Sleeve
Mini Gastric Bypass
Weight Loss Surgery
Gallbladder Surgery
Gastric Band
Gastric Sleeve
Gastric Bypass
Weight Loss Surgery
Gallstones
Hernia
Acid Reflux

“Evidence-based care tailored to each patient — taking the time to explain options and shared decisions.”

— Mr John Loy

Education & training

  1. 2007–2013 MD · Medicine and Surgery
    Universidad de Navarra, London (GB)
  2. 2013–2017 Residency · General Surgery
    UAB Barcelona, London (GB)
  3. 2017–2018 Fellowship · Subspecialty training
    Karolinska Stockholm, SE

Career & appointments

  1. 2017-09–2018-08 Junior consultant
    Universidad de Navarra Teaching Hospital — General Surgery

Licenses & insurance

Medical licenses

GB — Organización Médica Colegial de España (OMC)
#GB-184375 active · expires 2028-12-31

Board certifications

European Board of General Surgery
#EB-9FB3758F · issued 2018 · renewal 2028
Malpractice insurance: AmTrust Europe · 4,000,000 EUR coverage · No claims on file

Procedures performed

ProcedureCodeLifetime count
GP consultation 99213 68
Annual physical exam 99395 2,786
Vaccination administration 90471 1,602
Minor procedure (skin) 17110 2,557

Services & pricing

ServiceDurationModalityPrice
New patient consultation (60m) 60 min in_clinic|telemed 180.00 EUR
Follow-up consultation (30m) 30 min in_clinic|telemed|phone 90.00 EUR
Vaccination administration 120 min in_clinic 360.00 EUR
Minor procedure (skin) 30 min in_clinic 270.00 EUR

Office, team & in practice

John Loy
HEADSHOT
John Loy in consultation
IN OFFICE
John Loy with the team
WITH TEAM
John Loy at a conference
CONFERENCE

Videos

introduction · 84s
Meet John Loy

Research & publications

h-index: 20 · i10: 10

  1. European registry analysis of General Surgery outcomes
    John Loy, et al. · European Journal of Medicine, 2025
    DOI: 10.9094/euroclin.2025.0 · PMID: 33743413 · cited by 116
  2. Outcomes of General Surgery in adults — a multi-centre cohort
    John Loy, et al. · European Journal of Medicine, 2024
    DOI: 10.2114/euroclin.2024.1 · PMID: 38953047 · cited by 6
  3. European registry analysis of General Surgery outcomes
    John Loy, et al. · European Journal of Medicine, 2023
    DOI: 10.9736/euroclin.2023.2 · PMID: 34324064 · cited by 8
  4. Outcomes of General Surgery in adults — a multi-centre cohort
    John Loy, et al. · European Journal of Medicine, 2022
    DOI: 10.1115/euroclin.2022.3 · PMID: 35921007 · cited by 114

Invited talks

  • Practical updates in General Surgery European Annual Congress (General Surgery) · Vienna · 2024 · invited
  • Single-centre experience in General Surgery National Society Meeting · London · 2023 · oral abstract

Awards & memberships

Awards

  • 🏆 Top-rated General Surgery — London · EuroClinics Patient Choice · 2025 · regional

Society memberships

  • WONCA Europe — Family Doctors — Member · Since 2018
  • national college of family doctors — Member · Since 2018
  • European Union of Medical Specialists (UEMS) — Member · Since 2018

Articles by this doctor

  • Patient education Patient guide to General Surgery
  • Awareness When should you see a general surgery?

For international patients

Coordinator
Patient liaison · mr.john.loy@euroclinics.example

Location

1 tag

Patient reviews

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Recent reviews

  • ★★★★★ ✓ Verified
    Very thorough first visit — explained every step. Booking was easy and the staff were welcoming.
    Anna B.
  • ★★★★★ ✓ Verified
    Took time to listen and reviewed all my previous results. I would absolutely recommend.
    Marco V.
  • ★★★★☆ ✓ Verified
    Professional and knowledgeable. Wait on the day was a bit long, otherwise excellent.
    Helena F.

SPECIALTIES & PROCEDURES

Mr John Loy's Areas of Specialty

Each specialty below reflects the conditions and procedures Mr John Loy treats, with the size of the national pool of United Kingdom doctors offering the same care.

General Surgery

Mr John Loy is one of 1,713 general surgery doctors indexed in United Kingdom. Browse general surgery doctors in United Kingdom →

LOCAL CARE CONTEXT

Why local healthcare in London matters

Medical practice in United Kingdom is governed by country-specific licensing, professional standards, and patient-safety regulations. Practitioners listed here are registered with the relevant United Kingdom medical authority and operate within national rules on scope of practice, prescribing rights, and continuing professional development. Care delivered in London carries the additional benefits of local language support, in-person follow-up, and direct coordination with regional hospitals and labs. A verified profile means EuroClinics has cross-checked the practitioner or clinic against an official source (national medical register, public licence database, or the practitioner themselves), and that the data shown here matches that source as of the last verification date above.

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Frequently asked questions

Quick answers to the questions patients ask most. The same answers are surfaced to AI assistants via structured data.

  • What does John Loy specialise in?

    John Loy specialises in General Surgery in London, GB. 24 years of clinical experience.

  • What conditions does John Loy treat?

    John Loy treats conditions within General Surgery. View the full conditions-treated list on the profile.

  • Where does John Loy practise?

    John Loy practises in London, GB. The profile page lists all practice addresses, phone numbers, and clinic affiliations.

  • What languages does John Loy speak?

    John Loy speaks English.

  • How do I book an appointment with John Loy?

    Use the "Request a booking" button on the profile to send an appointment request. Most appointments are confirmed within 24 hours; many slots are bookable instantly.

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