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Trust score 97/100
Accepting new patients
Dr
Dr Nikolaos Diamantis
Oncology
English
6,032+
Patients seen
15
Years in practice
10
Publications
1
Languages spoken
About
Dr Nikos Diamantis is a Medical Oncology Consultant at St Bartholomew's Hospital specialising in colorectal, oesphageal, gastric, pancreatic, liver and bile duct cancers, and cancers of unknown primary. He is the Barts Trust Lead for Acute Oncology and Cancer of Uknowon Primay.
Dr Diamantis underwent specialist training at the Imperial College Healthcare Hammersmith, St Mary's and Harefield Hospitals. He was awarded the Greek national Oncology fellowship scholarship and went on to conduct clinical research for 2 years at the Drug Development Unit of the Royal Marsden.
Research interests include immunotherapy for GI malignancies and first in human clinical trials. Dr Diamantis is a Principal Investigator for a number of Phase 2 and 3 trials.
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Dr Diamantis underwent specialist training at the Imperial College Healthcare Hammersmith, St Mary's and Harefield Hospitals. He was awarded the Greek national Oncology fellowship scholarship and went on to conduct clinical research for 2 years at the Drug Development Unit of the Royal Marsden.
Research interests include immunotherapy for GI malignancies and first in human clinical trials. Dr Diamantis is a Principal Investigator for a number of Phase 2 and 3 trials.
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“Evidence-based care tailored to each patient — taking the time to explain options and shared decisions.”
— Dr Nikolaos Diamantis
Education & training
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2001–2007 MD · Medicine and Surgery
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2007–2011 Residency · Oncology
Career & appointments
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2011-09–2012-08 Junior consultant
Licenses & insurance
Medical licenses
GB — Organización Médica Colegial de España (OMC)
Board certifications
European Board of Oncology
Malpractice insurance:
Allianz Professional · 3,000,000 EUR coverage
· No claims on file
Procedures performed
| Procedure | Code | Lifetime count |
|---|---|---|
| GP consultation | 99213 | 62 |
| Annual physical exam | 99395 | 1,056 |
| Vaccination administration | 90471 | 944 |
| Minor procedure (skin) | 17110 | 1,039 |
Services & pricing
| Service | Duration | Modality | Price |
|---|---|---|---|
| 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 | 810.00 EUR |
| Minor procedure (skin) | 30 min | in_clinic | 540.00 EUR |
Office, team & in practice
Videos
Research & publications
h-index: 17 · i10: 10
-
Validation of clinical scoring in Oncology
DOI: 10.2854/euroclin.2026.0 · PMID: 32357620 · cited by 182
-
Long-term follow-up of Oncology across GB
DOI: 10.9648/euroclin.2025.1 · PMID: 38105539 · cited by 36
Invited talks
- Practical updates in Oncology European Annual Congress (Oncology) · Vienna · 2024 · invited
- Single-centre experience in Oncology National Society Meeting · · 2023 · oral abstract
Awards & memberships
Awards
- 🏆 Top-rated Oncology — · EuroClinics Patient Choice · 2025 · regional
- 🏆 Excellence in Patient Care · National Society · 2024 · national
Society memberships
- WONCA Europe — Family Doctors — Member · since 2012
- national college of family doctors — Member · since 2012
- European Union of Medical Specialists (UEMS) — Member · since 2012
Patient reviews
- Bedside Manner
- 5.00
- Knowledge
- 5.00
- Wait Time
- 4.70
- Staff Friendliness
- 4.97
- Ease Of Appointment
- 4.85
- Value For Money
- 4.87
- Would Recommend Pct
- 98
-
★ 5 verified visit
“Very thorough first visit — explained every step. Booking was easy and the staff were welcoming.”
-
★ 5 verified visit
“Took time to listen and reviewed all my previous results. I would absolutely recommend.”
-
★ 4 verified visit
“Professional and knowledgeable. Wait on the day was a bit long, otherwise excellent.”
Articles by this doctor
- Patient education Patient guide to Oncology
- Awareness When should you see a oncology?
For international patients
- Coordinator
- Patient liaison · nikolaos.diamantis@euroclinics.example
- Accepted intl insurance
- Allianz Worldwide · AXA Global · BUPA Global · Cigna Global
