The ISE leadership structure consists of two bodies.

General Council

The General Council is made up of one representative from each of the national member societies.

Executive Committee

ISE Executive Committee members (2020 – 2022)

Senior Leadership

photo of Margaret Wierman

Margaret Wierman


Margaret E. Wierman MD, is a Professor of Medicine, Integrative Physiology at the University of Colorado School of Medicine.

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Emanuel Christ

Secretary Treasurer

Emmanuel Christ MD is the Head of Interdisciplinary Endocrinology at the University Hospital of Basel.

Read more about Emmanuel Christ >

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Helen van Oers

Executive Director (non-Voting)

Helen van Oers is the Executive Director of ISE.

Read more about Helen van Oers >


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Gregory Kaltsas


Gregory Kaltsas MD FRCP is a Professor of Medicine-Endocrinology at the National and Kapodistrian University of Athens, Greece.

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Vivien Lim


Vivien Lim is currently the President of the Asean Federation of Endocrine Societies.

Read more about Vivien Lim >

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Syed Abbas Raza


Dr. S. Abbas Raza is working as consultant Diabetologist / Endocrinologist at Shaukat Khanum Cancer Hospital & Research Center and National Hospital in Lahore, Pakistan.

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Pedro Nel Rueda Plata


Graduated in Medicine in 1984 from the Universidad Industrial de Santander (Colombia). Specialist in Internal Medicine and Endocrinology Universidad Nacional de Colombia since 1995.

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Hirotaka Shibata


Professor and Chairman, Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University.

Read more about Hirotaka Shibata >

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Alvin Powers


Alvin C. Powers, M.D., the Joe C. Davis Chair in Biologic Science and Professor of Medicine, Molecular Physiology and Biophysics at Vanderbilt University. Director of the Vanderbilt Diabetes Center, the Chief of the Vanderbilt Division of Diabetes, Endocrinology, and Metabolism, and the Director of the Vanderbilt Diabetes Research and Training Center.

Read more about Alvin Powers >

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Susan Mandel


Dr. Susan J. Mandel, MD, MPH is a Professor of Medicine and Radiology and Chief of the Division of Endocrinology, Diabetes and Metabolism at the University of Pennsylvania where she directed the Endocrine fellowship for 22 years.

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Fatheya Al Awadi


Consultant Endocrinologist & the Head of the Endocrine Department – Dubai Hospital.

Read more about Fatheya Al Awadi >

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Ayesha Motala

South Africa

Ayesha Motala is a specialist physician and is currently Professor in the Department of Diabetes and Endocrinology at Inkosi Albert Luthuli Central Hospital(IALCH) and Nelson R. Mandela School of Medicine, University of KwaZulu-Natal (UKZN), Durban, South Africa.

Read more about Ayesha Motala >

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Helena Teede


Prof Teede is a clinically practising endocrinologist and leading academic in women’s reproductive and metabolic.

Read more about Helena Teede >