Dr Jonathan Sive

Dr Jonathan Sive is a Consultant Haematologist and Clinical Service Lead for Myeloma at University College London Hospital (UCLH). He is highly experienced in the diagnosis and management of blood cancers, particularly in myeloma and other plasma cell disorders such as MGUS, plasmacytomas and POEMS Syndrome. He also has expertise in the investigation of anaemia and other abnormal blood counts. He is an executive member of the UK Myeloma Forum where he coordinates myeloma management and guidelines at a national level. He is the lead author of the recently published UK national guidelines on the diagnosis and initial treatment of myeloma. He is also an active member of the UK Myeloma Research Alliance where he is involved in the planning and management of national clinical trials Dr Sive completed his specialist haematology training at UCLH and carried out a PhD in Molecular Haematology at Cambridge University, for which he was awarded a Cancer Research UK Clinical Fellowship. He remains actively engaged in a variety of clinical research projects and his work has been widely published in peer-reviewed journals and textbooks. Dr Sive is dedicated to improving outcomes and wellbeing for his patients, and combines professional, expert advice with a caring and sympathetic manner. He is registered as a provider with all major UK insurance companies and is also happy to see uninsured self -pay patients. Diseases, Medical Tests and Treatments • Investigation and treatment of myeloma • Mnagament of other plasma cell abnormalities such as MGUS, Plasmacytomas and POEMS Syndrome • Investigation and management of anaemia and other blood count abnormalities • Myeloma and other plasma cell disorders (MGUS, plasmacytomas, POEMS Syndrome). • Blood cancers • General haematology • Investigation and management of anaemia • High and low white cell counts • Neutropenia • High and low platelet counts • Iron deficiency and paraproteins

"Evidence-based care tailored to each patient — taking the time to explain options and shared decisions."

1. 2015–2021
   MD · Medicine and Surgery

   Universidad de Navarra

2. 2021–2025
   Residency · Haematology

   Universidad Complutense de Madrid

3. 2025–2026
   Fellowship · Subspecialty training

   Karolinska Stockholm, SE

1. 2025-09–2026-08
   Junior consultant

   Universidad de Navarra Teaching Hospital — Haematology

1. 1 Choose a slot
2. 2 Brief pre-consult form
3. 3 Consultation
4. 4 Follow-up note & plan

Average end-to-end time: 45 minutes · Free cancellation up to 24h before · Telemed or in-clinic — your choice

h-index: 5 · i10: 10

Selected publications

1. European registry analysis of Haematology outcomes

   Dr Jonathan Sive, et al. · European Journal of Medicine, 2025

   DOI: 10.7366/euroclin.2025.0 · cited by 63

2. Outcomes of Haematology in adults — a multi-centre cohort

   Dr Jonathan Sive, et al. · European Journal of Medicine, 2024

   DOI: 10.4393/euroclin.2024.1 · cited by 197

3. European registry analysis of Haematology outcomes

   Dr Jonathan Sive, et al. · European Journal of Medicine, 2023

   DOI: 10.8336/euroclin.2023.2 · cited by 83

• Patient education Patient guide to Haematology 2026-03-14 · 5 min read
• Awareness When should you see a haematology? 2026-01-07 · 7 min read