Dr Georgios Karagiannis

Consultant Cardiologist


"I enjoy using the new outpatient facilities at Spire Thames Valley Hospital. It is the ideal environment for medical consultations."

Specialises in

  • Acute cardiac care
  • Echocardiography
  • General and acute cardiology
  • Heart failure
  • Preventive cardiology

Also available for:

Virtual consultations:

Languages spoken

English, German, Greek

I have extensive experience in general and acute cardiology. My special interest is in heart failure, echocardiography, acute cardiac care, preventive cardiology.

Since 2013, I have been working at Harefield Hospital as a member of the Transplant Department. I am also working at Hillingdon Hospital as a Consultant Cardiologist.

I studied medicine at the Aristotle University of Thessaloniki in Greece. I completed my specialist training in Greece and I was awarded 'excellent' marks on completion. In 2009, I successfully completed my PhD in Cardiology, for which I also received an 'excellent' mark. 

I can speak English, German and Greek.

General Medical Council Number: C7459666

Treatment information

Some of the principal treatments carried out by Dr Georgios Karagiannis at Spire include:


Other treatments

  • Atrial fibrillation
  • Coronary artery disease
  • Echocardiography
  • Hypertension
  • Stroke prevention


Get in touch

Important information about Covid-19 tests

COVID-19 testing or antibody tests are not available as a standalone service at Spire Thames Valley Hospital.


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Additional information

MD, PHD, FESC, FHFA / Aristotle University of Thessaloniki, Greece / 2002
Doctor of Medicine

Professional memberships

European Society of Cardiology

British Society of Heart Failure

Royal College of Physicians

Professional leadership

Educational Lead for Medicine at Hillingdon Hospital

Cardiology Department, Hillingdon Hospital

Transplant Department, Harefield Hospital

Senior Lecturer, Brunel University

Hon. Senior Clinical Lecturer, Imperial College, London

I enjoy spending my spare time with my wife and two sons. I also love cycling and playing basketball.

Telephone 01753 665404
Website http://www.expertcardiologist.co.uk
Private secretary Madeleine Than (Maddie)