Meet the assessors

Assessors are the face of the accreditation programme, acting as ambassadors and upholding its reputation. Assessors support IQAS by promoting and championing good practice and continuous improvement. They have a critical role in assessing services for accreditation, providing a fair, comprehensive and transparent assessment and providing clear instruction for service improvement.

Our assessors are consultants and nurses in the service and we also have lay assessors, who represent the patient voice.

If you are interested in applying for the role of assessor, please email the team to express an interest: 


Dr Thirumala Krishna
IQAS clinical lead

Dr Thirumala Krishna (TK) is clinical lead for IQAS. He is Consultant Allergist and Immunologist and lead physician for the Allergy service in Heart of England NHS Foundation Trust and Honorary Reader in Medicine at Aston Medical School, Birmingham. He is actively engaged in clinical practice, research and teaching. He has several national roles including member of Standards of Care Committee & lead for national audits for BSACI and member of national CRG for specialised services in Allergy and Immunology. He has published over 50 papers in peer review journals, contributed to several book chapters and national guidelines for allergic conditions.


Dr Sadia Noorani
Consultant immunologist and head of department at Sandwell and West Birmingham Hospitals NHS Foundation Trust

Dr Sadia Noorani is a consultant immunologist and service lead for the immunology services at Sandwell and West Birmingham NHS Trust. Her department in addition to immunodeficiency has a large allergy service. She works closely with patients and patient groups for the improvement of the services.  She is involved in teaching different healthcare professionals including primary care physicians to improve diagnosis and management of allergic & immunological diseases.  Her voluntary roles include the membership of the NICE adoption & impact reference panel and UKPIPS medical advisory panel.


Dr Syed Hasan Arshad
(Hon) Consultant physician at University Hospital Southampton and Director of the David Hide Asthma and Allergy Research Centre, Isle of Wight

Dr Hasan Arshad is helping RCP to establish IQAS across the UK. He is a professor of Allergy and Clinical Immunology, (Hon) Consultant physician at University Hospital Southampton and Director of the David Hide Asthma and Allergy Research Centre, Isle of Wight. He has published over 200 papers, authored/edited 9 books and 10 book chapters. His allergy department was awarded "World Centre of Excellence" title by the World Allergy Organisation in 2014 for clinical innovation and research. He is a council member of British Society of Allergy & Clinical Immunology, Chair of the Adult Allergy Group and member of national CRG. In 2015, he was elected by the BSACI to receive the prestigious Jack Pepys award for services to allergy in the UK.


Rosalind Fisher
Specialist nurse practitioner in allergy and immunology at Oxford University Hospitals NHS Foundation Trust

Rosalind Fisher is a Specialist Nurse Practitioner in allergy and immunology at the Oxford University Hospitals NHS Foundation Trust providing allergy services to Oxfordshire, Berkshire, Buckinghamshire and Northamptonshire. She has worked as the lead nurse in general allergy, drug allergy and immunotherapy and has previous nursing experience in infection control, intensive care and neuromedicine and neurosurgery.


Kate Hopkinson
Allergy nurse specialist at Nottingham University Hospitals NHS Trust


Kathryn Powrie
Allergy nurse specialist at Mid Essex Hospitals NHS Trust

Kathryn is the allergy nurse specialist at Mid Essex Hospitals NHS Trust in Chelmsford and has been working in the speciality for 17 years. Over 14 years at St Mary’s Hospital, London shelled and developed clinical services, running nurse-led clinics forimmunotherapy, local anaesthetic testing, rhinitis and asthma and, working with colleagues, helped establish the transition service. Since moving to Broomfield Hospital she has established nurse led allergy and asthma services including new-patient clinics, in-patient reviews, day case food and drug challenge sessions and supports the long established immunotherapy service. Enthusiastic about the role of allergy nurses she is a member of the BSACI Nurses in Allergy committee and ANSWER (Allergy Nurses Working in the Eastern Region) helping to support and develop nursing services.


Amena Warren
Head of clinical services at Allergy UK

Amena currently working as Head of Clinical Services for Allergy UK, helping to raise awareness of Allergy both nationally and internationally, supporting the aims of the charity. Previously working as a Clinical Nurse Specialist in immunology and allergy for an NHS Hospital Trust. Trained at University College, London in 1979 after studying the 3 sciences at A level. Paediatric training was gained at Great Ormond Street Hospital. Public Health & Specialist Practice in School Nursing qualification was gained in 1994.

Going into schools and conducting health assessments on children made Amena very aware of the rising incidence of Allergy. She joined the Royal College of Nursing Immunology & Allergy Nurses group as well as the British Society of Allergy & Clinical Immunology (BSACI) becoming the first Nurse to sit on the BSACI council and starting the National Nurses in Allergy Group.


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