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Dr Jonathan Katz

Dr Jonathan Katz

Consultant Endocrinologist
MBBChir MD FRCP

Practising at

Spire Bushey Hospital

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Treatment information

Some of the principal treatments carried out by Dr Jonathan Katz at Spire include:

Other treatments

Polycystic ovary syndrome, thyrotoxicosis, hypothyroidism, parathyroid, adrenal and pituitary disorders. 

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Professional profile

Dr Katz studied Medicine at Cambridge University (1985-1988) and University College London (1988-1991), qualifying in 1991. He began specialist training in endocrinology in 1994, whilst working in the internationally renowned Department of Endocrinology at St Bartholomew's Hospital. Dr Katz returned to University College London (UCL) for specialist registrar training from 1994-2001, working with eminent endocrinologists at UCL , The Royal Free and Whittington Hospitals. 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). Since 2014, Dr Katz has worked for the Royal Free London NHS Foundation Trust as a Consultant Endocrinologist.


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Qualification and professional memberships

Professional memberships

Fellow of Royal College of Physicians
Diabetes UK
Society of Endocrinology

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Current NHS posts

Dr Katz works as a Consultant in Diabetes & Endocrinology for the Royal Free LondonNHS Foundation Trust, based at Barnet Hospital, where he looks after both inpatients and outpatients with diabetes, thyroid disease and other hormone imbalances.

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Personal Profile

I have travelled widely to South America, South-East Asia and Australasia, as well as the U.S.A and European destinations. I live and work in north London, enjoying family life as well as the entertainment London has to offer. My main hobby is photography, including editing and printing. I keep fit by cycling and swimming. Looking after young children at the weekends is also good exercise!

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Private contact details

Telephone 0208 901 5555
Website http://www.hormoneconsultant.co.uk
Private secretary telephone 020 3327 6350