003 23_022_RFL PPU Dr Diamantis 02032 (1)

Dr Nikolaos Diamantis


Consultant Medical Oncologist

Dr Nikos Diamantis is a Medical Oncology Consultant at Royal Free Hospital specialising in colorectal, oesphageal, gastric, pancreatic, liver and bile duct cancers, and Neuroendocrine tumours. He is the Royal Free Clinical Lead for Colorectal cancer

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.

Hospital Locations

Royal Free Hospital

Year qualified


Country of qualification

Greece and UK

Languages spoken

English, Greek


Medical Oncology, Gastrointestinal Cancers, Neuroendocrine tumours

Clinical interests

Colorectal, Oesphageal, Gastric, Pancreatic, Liver, Bile duct cancers, and Neuroendocrine tumours

Research interests

Research interests include immunotherapy for GI malignancies, Neuroendocrine tumours and first in human clinical trials. Dr Diamantis is a Principal Investigator for a number of Phase 2 and 3 trials.

Dr Nikolaos Diamantis, Consultant Medical Oncologist is available to be seen for consultations at Royal Free London