Dr Karen Breen

Haematologist (Blood Specialist) in London

MBBCh MD MRCPI FRCPath

Dr Karen Breen areas of expertise:

Professional statement

Dr Karen Breen is an experienced and renowned consultant haematologist practising at her private clinics in London. Her specialties include thrombosis, obstetric haematology, and clotting, bleeding, and platelet disorders. Currently, Dr Breen is practising at Guys' Hospital, a private healthcare clinic of Guys' and St Thomas' NHS Trust, in addition to London Bridge Hospital.

Dr Breen completed her basic medical training whilst in Ireland, achieving her MB BCh in 2000. She later received her membership with the Royal College of Physicians of Ireland before eventually receiving her fellowship with the Royal College of Pathology. Dr Breen received her postgraduate haematology speciality training mostly in Ireland. She later relocated to London to complete research on antiphospholipid syndrome which led to her receiving an MD in 2015.

Over the years, Dr Breen has maintained a strong interest in her research. She continues to conduct research on antiphospholipid syndrome and thrombosis. Presently, she is involved in several current clinical trials and translational research. Dr Breen has had her work published in various peer-reviewed journals. On a regular basis, Dr Breen lectures both nationally and internationally.

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All reviews are from real patients and have been verified by our Client Relations department to ensure they meet the service standards.

Patient reviews

Verified Patient
22/02/2024

Would you recommend this doctor?

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Patients comments

Such a great service

Verified Patient
04/08/2023

Would you recommend this doctor?

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Patients comments

Quality of care and advice was exceptional.

Verified Patient
23/11/2022

Would you recommend this doctor?

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Patients comments

I'd have no hesitation in recommending Dr Breen, for her thoroughness and attention to detail, and her clear understanding of my situation and thoughtful advice.

Verified Patient
16/11/2022

Would you recommend this doctor?

  • Bedside manner
  • Friendliness of the staff
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  • Facility's features

Patients comments

Dr Breen has been everything you expect and need in a specialist: professional, caring and knowledgeable. Her choice of investigations and management plan options are backed up by a sound evidence base. I wouldn’t hesitate to recommend Dr Breen.


Diseases, Medical Tests and Treatments

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Other information about Karen Breen

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