The purpose of ISIM is to promote scientific knowledge and unity in Internal Medicine, to further the education of young internists and to encourage friendship between physicians from all over the world.

At a time when Internal Medicine is threatened by increasing sub-specialization, ISIM tries to strengthen its position as an eminent integrating part of global health sciences.

The main activity of ISIM is the organization of the Biannual International Congress of Internal Medicine.

The last congresses took place in Manila (1996), Lima (1998), Cancun (2000), Kyoto (2002), Granada (2004), Taipei (2006), Buenos Aires (2008), Melbourne (2010), Santiago de Chile (2012), Seoul (2014) and Bali (2016), Cape Town, South Africa (2018) and Punta Cana, Dominican Republic (2023). Future congresses will be held in Prague, Czech Republic (2024), Taipei, Taiwan (2026) and Manila, Philippines (2028).

The International Congresses of Internal Medicine always were outstanding events with a large attendance from the whole world. Especially when located in countries not privileged with easy international scientific exchange, the congresses give a very welcome opportunity to see and hear leading experts from all over the world.


The activities of ISIM are managed by an Executive Committee, which consists of twelve members.

As a member of the Council of the International Organisation of Medical Societies, ISIM actively co-operates with the World Health Organisation.


Dr. Adri Kok

Past President

Physician Specialist

P.O.Box 2896
Alberton 1450
South Africa
Tel: +27 11 907 8827


Prof. John Kolbe


Professor of Medicine
Faculty of Medical and Health Sciences
University of Auckland, Auckland

Auckland Surgical Centre
Central Auckland, New Zealand
Tel. +64 (09) 524 9055
Fax +64 (09) 524 6472


Prof. Virginia Hood

President Elect

Professor of Medicine, University of Vermont
Fletcher Allen Health Care

1 South Prospect Street,
Burlington, VT 05401, US
Mailstop 443RE2
Tel.: +1 802 847 2534
Fax: +1 802 847 8736


Prof. Hans-Peter Kohler, MACP

Secretary General

Professor of Internal Medicine
University of Bern, Switzerland


Mr. Andres Huber


Gempenring 116
4143 Dornach/SO
Tel: +41 79 686 41 15


Prof. Richard Ceska, FACP, FEFIM


Professor of Medicine

U Nemocnice 1, 128 08 Prague 2 
Czech Republic
Tel: +420 224 962 946



Prof. Quazi Tarikul Islam, FCPS(BD), FRCP(Edin),MACP(USA)


Prof of Medicine, Popular Medical College, Dhaka, Bangladesh

Councillor & Treasurer, Bangladesh College of Physicians & Surgeons, Dhaka, Bangladesh
Editor in Chief,  Bangladesh Journal of Medicine (BJM)
Chair,  Editorial Board, Journal of Medicine (JOM)
Tel: +1 8801715299399


Dr. Sally Aman Nasution, FACP


Chairman Indonesian Society of Internal Medicine 
Internist - Cardiologist

Head of Intesive Coronary Care Unit (ICCU)

Integrated Cardiac Services Cipto Mangunkusumo
National General Hospital,
Jakarta / Indonesia


Dr. Claudia Arias


Internal Medicine Physician Clinical Nutritionist
Medical Center University Central East Avenue Máximo Gómez
Head of the Internal Medicine service Hospital Juan Pablo Pina San Cristóbal

Office Avenida Pedro Henriquez Ureña # 79, Edificio UCE III 2nd Floor Suite # 10
Tel: +1 808 227 0885
Mobile: +1 707 4760
Dominican Republic


Prof. Shan-Chwen Chang, M.D.,Ph.D


Professor of Medicine
Department of Internal Medicine,

National Taiwan University College of Medicine,

Executive Vice President, National Taiwan University

President of the Taiwan Society of Internal Medicine



Dr. Lorenzo Diaz Salazar


Hospital Militar de Honduras,

Consulta Externa Emergencia de Medicina Interna

Hospital Escuela Universitario

Sala de Nefrología Diálisis y Hemodiálisis




Prof. Dr. Rolf A.Streuli

Honorary President

Professor of Internal Medicine

St. Urbanstrasse 67
4900 Langenthal, Switzerland
Tel: +41 62 916 31 02


The International Society of Internal Medicien was established in Basel on September 29, 1948 as an association in accordance with the Civil Code (ZGB) 52ff with headquarters in Basel. In 1973 already eleven country organizations where part of the ISIM.

Today the ISIM counts 63 society members from all over the world.