Welcoming our new Medical Committee members

A huge part of The Pituitary Foundation’s success is down to the support and guidance given by our volunteer Medical Committee. They give their time and expertise speaking at Conferences, writing articles for our website and Pituitary Life, and working with staff and other volunteers to provide the best support possible to the pituitary community.

We are delighted that we’ve recently had some new additions to the Committee, meaning we currently have a team of 26, and we’d like to introduce them to you here:


Dr Niki Karavitaki, Senior Clinical Lecturer & Consultant Endocrinologist 

Dr Niki K

Niki is a Senior Clinical Lecturer in Endocrinology in the Institute of Metabolism and Systems Research at the University of Birmingham and Honorary Consultant Endocrinologist at the Queen Elizabeth Hospital Birmingham.


Her clinical and research interests are on hypothalamo-pituitary disease. She was a Consultant Endocrinologist at the Oxford Centre for Diabetes, Endocrinology and Metabolism until 2015, when she moved to University of Birmingham to become the Academic Lead in the area of Pituitary. She has published numerous original papers and reviews in peer-reviewed journals and has authored many chapters in prestigious books. She is a member of the Clinical Committee of the Society of Endocrinology and of the Board of Directors of the Pituitary Society. She is the National Lead for the European Reference Network on Rare Endocrine Conditions (Adult Endocrinology) and the Co-Lead of the Pituitary Service at the Queen Elizabeth Hospital Birmingham. She was also a member of the Clinical Practice Guideline Task Force of the Endocrine Society on Hormone Replacement Therapy on Hypopituitarism.


Sherwin Criseno, Advanced Nurse Practitioner/Lead Nurse in Endocrinology

BSc, MSc (Endocrinology), PGD (Education), PGD (Advanced Practice), Advanced Nurse Practitioner

110Sherwin is the Lead Nurse in Endocrinology at University Hospital Birmingham. Areas of interest include: Pituitary Disorders, Adrenal Disorders, Growth Hormone, Metabolic Bone Disorders, Longterm Effects of Cancer Treatment and Andrology.


He is a Member of the Society for Endocrinology Nurse Committee, Society for Endocrinology Clinical Committee, and the European Society for Endocrinology Nurses Working Group.


Holly Irwin, Endocrine Specialist Nurse

Holly Irwin1Holly is new to The Pituitary Foundation team, joining in December 2017 as our Endocrine Specialist Nurse. Holly grew up on the Isle of Wight but has spent the last 12 years in Southampton where she completed her nurse training, graduating in 2008.


Her nursing career has included being a staff nurse on Intensive Care and Respiratory High Dependency units, moving onto her first Sisters post on an Infectious Diseases Unit in 2011. From here, after having her two children, she decided to move into Endocrinology and worked in Southampton as their Endocrine Specialist Nurse for over two and a half years. Here she had a passion and interest for pituitary patients in particular and worked alongside both the Endocrinologists and Neurological Surgeons, caring for pituitary patients. Holly’s experience has included watching transphenoidal surgery in theatres on  number of patients.

She is a nurse committee member for the Society of Endocrinology and strives to be at the forefront of resources and developments within the Endocrine network, sharing this knowledge with The Pituitary Foundation. Holly recently returned to the Isle of Wight with her two girls, aged 3 and 4 and is very much looking forward to giving her time and commitment to The Foundation, alongside being a busy mum! 


Again, we hope you join us in welcoming these new members and we can’t thank them enough for giving their time to provide ongoing support to The Foundation.

To see full list of The Foundation’s Medical Committee please click here.