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Dr Jonathan Katz


Consultant Endocrinologist

  • Endocrinology and diabetes
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  • Biography icon plus

    Dr Katz studied Medicine at Cambridge University (1985-1988) and University College London (1988-1991), qualifying in 1991. He specialised in endocrinology, completing his registrar training at UCLH , the Whittington Hospital and Royal Free Hospital. From 1996-1998, he undertook a 2-year research fellowship, culminating in an MD Thesis on “obesity and polycystic ovary syndrome”.

    In 1999, Dr Katz worked as a registrar in Sydney, Australia, gaining an international perspective on endocrinology. Dr Katz was appointed as a Consultant in Diabetes & Endocrinology in 2002. From 2007-2012, Dr Katz was Head of The Endocrinology Department at Barnet and Chase Farm NHS Trust. In 2009, Dr Katz was elected as a Fellow of the Royal College of Physicians (FRCP) - an honour granted to consultants providing the highest standards of care. In 2014, Dr Katz joined the Royal Free London NHS Foundation Trust as a Consultant Endocrinologist.

    Dr Katz is a Consultant in Diabetes & Endocrinology, based at Barnet Hospital, within the Royal Free London NHS Foundation Trust. He looks after both inpatients and outpatients with diabetes, thyroid disease and other hormone imbalances.

    Dr Katz has broad experience in managing endocrinological disorders. The hormone imbalances he treats include: Overactive thyroid (thyrotoxicosis); Underactive thyroid (hypothyroidism); Thyroid enlargement/goitre); Polycystic ovary syndrome; Diabetes- Type 1, Type 2 diabetes and diabetes prevention; Pituitary disease (e.g. prolactinomas, pituitary tumours) ; Testosterone deficiency ; Addison's disease (and adrenal disorders); calcium excess; Vitamin D deficiency.

  • Clinical interests icon plus

    Thyroid Disease; Prolactinoma; Calcium Disorders

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