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General enquiries:
+44 (0)207 935 4444
Book an appointment:
+44 (0)207 616 7693
Self-pay enquiry:
+44 (0)203 219 3315
The London Clinic
Professor Gribben specialises in haematological cancers including lymphomas, leukaemias and bone marrow transplantation.

Specialties and sub-specialties

Chronic lymphocytic leukaemia
Bone marrow transplantation

Specialist microsite

London Haematology

Professional profile

Professor John Gribben graduated from the University of Glasgow in 1980. He subsequently trained in Haematology at University College London and in Medical Oncology at the Dana-Farber Cancer Institute, Harvard Medical School, where he remained on the faculty for 17 years before returning to the UK.

He specialises in haematological cancers including lymphomas, leukaemias and bone marrow transplantation.

His NHS post is as Consultant Haematologist and Medical Oncologist Barts and The London NHS Trust.

He is the author of more than 300 articles and chapters in peer-reviewed publications and has a global reputation for his work in researching new drugs and forms of cancer treatment. He has grant funding from The National Cancer Institute and Cancer Research UK for pioneering studies in leukaemia and lymphoma.

He has sat on and chaired numerous international executive committees dedicated to investigating new approaches to cancer care, and several of the editorial boards for professional publications which are focused on cancer. He has lectured across the world on new therapies for cancer treatment.

Current posts

  • Professor and Consultant Medical Oncologist
    Barts and The London NHS Trust
  • Professor of Experimental Cancer Medicine
    Barts and The London School of Medicine, Queen Mary University of London

Medical training

  • University of Glasgow
  • University College London
  • Harvard Medical School


CART-cell therapy
Middle East Medical Portal
Professor John G Gribben explains why CART-cell therapy has the potential to revolutionise cancer treatment.
Q&A: Professor John Gribben
Marylebone Journal
Consultant haematologist at The London Clinic on CAR T cell therapy, which has the potential to revolutionise cancer treatment
Professor John G. Gribben becomes EHA President
The London Clinic
Professor John G. Gribben, Consultant Haematologist and specialist in haematological cancers including lymphomas, leukaemias and bone marrow transplantation, is the new President of the European Hematology Association (EHA).
How 53-year-old retail worker became one of the first NHS patients to be saved by ‘miracle’ cancer treatment
Professor Gribben is quoted in this Daily Mail news report on a pioneering immunotherapy treatment.
Q&A: Prof John Gribben
Marylebone Journal
Professor Gribben's interview with the Marylebone Journal sees him talk stem cells, research and the immune system.

Medical Admissions

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Facilitating acute admissions into The London Clinic whilst maintaining the highest levels of safety and care, supported by a consultant on-call rota.

Concierge service

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We can support our patients with travel, hotel accommodation, London tours, plus theatre and restaurant reservations.

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Main numbers

General enquiries: 020 7935 4444 Appointments: 020 7616 7693 Self-Pay: 020 3219 3315

Contact numbers for service departments

Other numbers

Concierge service: 020 3219 3323International office: 020 3219 3266Invoice and payment enquiries: 020 7616 7708Press office 020 7616 7676

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