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Dr Prathap Pillai

Dr Prathap Pillai


Consultant allergist

Specialises in airway allergies including pollen, animals and dust.


Dr Prathap Pillai is a consultant allergist at Guy’s Hospital. He has a strong clinical background and over 15 years’ experience in the management of allergic disorders at secondary and tertiary levels.

He underwent his specialist allergy training at Guy’s and St Thomas’ NHS Foundation Trust. During the same period, he also completed a research fellowship programme and a clinical trial investigating the effects of anti-lgE therapy (Omalizumab) in non-atopic asthma, for which King’s College London awarded him a PhD.


  • Airway allergies – allergic rhinitis.
  • Urticaria, angioedema.
  • Food allergies.
  • Drug allergies.


  • Allergy skin tests, blood tests.
  • Allergy treatment prescription.
  • Allergen immunotherapy.
  • Allergen challenge.

Research interests

Dr Pathap Pillai has sat in the RCP Expert Advisory Group on clinical commissioning as a BSACI representative in the past. He currently sits on the BSACI Standard of Care Committee and the NSAID Allergy guideline development group.

He is the training programme director (TPD) for Allergy at the London Deanery and sits on the joint speciality advisory committee (SAC) for Allergy and Immunology.

Membership of professional bodies

  • General Medical Council, UK.
  • Royal College of Physicians.
  • British Society for Allergy and Clinical Immunology.
  • European Academy of Allergy and Clinical Immunology.
  • British Medical Association.
  • Medical Defence Union.

Practice locations

Guy’s hospital.

Language(s)English, Hindi, Malayalam