Professor John Wass



GMC number: 1491337

Practising since: 1971


Endocrinology and Diabetes Mellitus

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  • By arrangement
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  • Professor of Endocrinology, Oxford University.
  • Head of the Department of Endocrinology at the Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital Oxford, until 2012.
  • Research interests: pituitary tumours, acromegaly, adrenal disease, angiogenesis in endocrinology, genetics of osteoporosis, thyroid disease.
  • Hormone Replacement Therapy for Women
  • Chair RCP Group on Weight and Health . Spokesperson on Obesity Royal College of Physicians.
  • Published over 410 articles, edited different textbooks; Oxford Textbook of Endocrinology (3 editions), Clinical Endocrine Oncology (2 editions), Oxford Handbook of Endocrinology (4 editions)
  • President European Federation of Endocrine Societies from 2001-2003.
  • Chairman Society for Endocrinology 2006-2009.
  • President American Pituitary Society.
  • Lifetime Achievement Award, Pituitary Society (America) 2017.
  • Academic Vice President Royal College of Physicians  2012-2015.
  • Presented acclaimed documentary ‘The Fantastical World of Hormones’ on BBC4, 2016
  • Current Getting It Right First Time Endocrine Lead, NHS England, visiting and inspecting all endocrine departments in the UK (127) and doing a national report.   

Special interests

  • Endocrine investigations
  • Thyroid
  • Bone/osteoporosis
  • Hormone replacement therapy
  • Fatigue
  • Acromegaly
  • Pituitary disease
  • Adrenal insufficiency and Addison’s disease
  • Cushing’s disease
  • Medically unexplained symptoms 

Treatments and tests offered by Professor John Wass at Nuffield Health

  • Fatigue screen
  • Endocrine investigations
  • Hormone replacement therapy (HRT)
  • Osteoporosis screen
  • Endocrine

Locations Professor John Wass works with


    Beech Road, Headington, Oxford, OX3 7RP

    01865 307777
    Overall rating

Related experience


Top five research achievements are:

1.     The importance of surgical experience on outcomes in pituitary tumours particularly acromegaly (we were amongst the first to point this out).

2.     Work on Craniopharyngiomas showing the importance of radiotherapy in tumours that are incompletely resected.

3.     Work on pituitary apoplexy which shows the importance of early intervention in patients with neurological sequelae of apoplexy which predicates more complete recovery.

4.     Work on Addison’s disease and the importance of DHEA replacement therapy.

5.     Work on obesity and the polycystic ovary syndrome showing a high incidence of the FTO syndrome.

Highly cited articles:

1.     Melmed S, Casanueva FF, Hoffman AR, Kleinberg DL, Montori VM, Schlechte JA, Wass JA.  Diagnosis and treatment of hyperprolactinemia: an endocrine society clinical practice guideline.  J Clin Endocrinol Metab. 2011 Feb;96(2):273-88.  PMID:  21296991

2.     Biller BM, Grossman AB, Stewart PM, Melmed S, Bertagna X, Bertherat J, Buchfelder M, Colao A, Hermus AR, Hofland LJ, Klibanski A, Lacroix A, Lindsay JR, Newell-Price J, Nieman LK, Petersenn S, Sonino N, Stalla GK, Swearingen B, Vance ML, Wass JA, Boscaro M.  Treatment of ACTH-dependent Cushing's syndrome: a consensus statement.  J Clin Endocrinol Metab. 2008 93(7):2454-62

3.     Fernandez A, Karavitaki N, Wass JA.   Prevalence of pituitary adenomas: a community-based, cross-sectional study in Banbury (Oxfordshire, UK).  Clin Endocrinol (Oxf). 2009 Jul 24.

4.     Casanueva FF, Molitch ME, Schlechte JA, Abs R, Bonert V, Bronstein MD, Brue T, Cappabianca P, Colao A, Fahlbusch R, Fideleff H, Hadani M, Kelly P, Kleinberg D, Laws E, Marek J, Scanlon M, Sobrinho LG, Wass JA, Giustina A.  Guidelines of the Pituitary Society for the diagnosis and management of prolactinomas.  Guidelines for acromegaly management.  Clin Endocrinol (Oxf). 2006 Aug;65(2):265-73


5.     Katznelson L, Laws ER Jr, Melmed S, Molitch ME, Murad MH, Utz A, Wass JAAcromegaly: an endocrine society clinical practice guideline.  J Clin Endocrinol Metab. 2014 Nov;99(11):3933-51

6.     Randeva HS, Schoebel J, Byrne J, Esiri M, Adams CBT, Wass JAH.  Classical pituitary apoplexy: clinical features, management and outcome. Clinical Endocrinol 1999; 51, 181-188

7.     Elsheikh m, Dunger DB, Conway GS, Wass JAH.  Turner’s syndrome in Adulthood. Endoc. Rev. 2002; Feb 23(1): 120-40

8.     Bassett JHD, Forbes SA, Pannett AAJ, Lloyd SE,, Christie PT, Wooding C, Harding B, Besser GM, Edwards CR, Monson JP, Sampson J, Wass JAH, Wheeler MH, Thakker RV.  Mutational analysis studies in multiple endocrine neoplasia type 1.  American Journal of Human Genetics 1998, 62; 232-244

9.     Hunt PJ, Gurnell EM, Huppert FA, Richards C, Prevost AT,  Wass JAH, Herbert J, Chatterjee KK.  Improvement in Mood and Fatigue after Dehydroepiandrosterone Replacement in Addison’s Disease in a Randomized, Double Blind Trial.   The Journal of Clin.  Endo & Metab 2000; 85; 4650-4656

Karavitaki N, Brufani C, Warner JT, Adams CBT, Richards P, Ansorges O, Shine B, Turner HE, Wass JAH.  Craniopharyngiomas in children and adults: systematic analysis of 121 cases with long-term follow up.  Clin. Endocrinology 2005; 62, 397-409


  • Society for Endocrinology
  • British Diabetic Association
  • American Endocrine Society
  • European Neuroendocrine Association
  • Association of Physicians
  • Medical Research Society
  • British Neuroendocrine Group
  • Growth Factor Group
  • Medical Society of London
  • European Federation of Endocrine Societies
  • Pituitary Society

Other posts held

  • Professor of Endocrinology, Oxford University
  • Consultant Physician, Churchill Hospital

Insurers Professor John Wass works with

Professor John Wass works with the following private medical insurance providers:

  • Bupa
  • AXA Health
  • Aviva Health
  • AXA - Global Healthcare
  • Bupa On Demand
  • Benenden Health
  • Cigna
  • CS Healthcare
  • Exeter Family Friendly
  • Health-on-Line
  • PHC
  • Simplyhealth
  • Vitality Health (Pru Health)


Professor John Wass does not hold a share or financial interest in this hospital, another Nuffield Health hospital or the company.

Professor John Wass does not have a share or financial interest in equipment used at this hospital or another Nuffield Health hospital.

Professor John Wass does not hold any paid advisory role(s) at this hospital or on behalf of Nuffield Health.