1. World Organization of National Colleges, Academies and Academic Associations (WONCA), WONCA Europe, Executive Board Member 2010-2013, 2013-2016, 2016-2019 and President 2019-2021, Immediate Past President (current) www.woncaeurope.org
2. President of European General Practice Research Network (EGPRN, 1971) for 2016-2019, vice Chair & Immediate Past (Executive Boards of the terms 2001-2004, 2007-2010 ve 2010 –2013 and 2013-2016... ) www.egprn.org/page/past-cahirpersons
3. EFPC (European Forum for Primary Care), Advisory Board Member, 2019-2022
4. European Society of Primary Care Gastro (ESPCG), International Steering Committee member 2005- (http://www.espcg.eu/?pag=66 );
5. The American Society of Teachers of Family Medicine (STFM) international member, (1995-).
6. European Academy of General Practice Teachers (EURACT ), member
7. European Review Group on Prevention (EUROPREV)- Network of WONCA Europe, Member.
8. International Society of Travel Medicine (ISTM) ve EuroTravNet , -European Centre for Disease Prevention and Control (ECDC) (http://www.istm.org/eurotravnet/members.html), Member, 2009-....
9. IPPA- International Panel Physicians Association for migrant health practice, Member since 2010, member of the Board of Directors since 2021-
10. WHO Europe Public Health Services- International Expert for Primary Care (2020 ), Member of the Advisory Group for the WHO/Europe Country Presence Review
11. WHO Europe Expert- Noncommunicable Disease Risk Factors in Primary Health Care (2020)
12. TAHUD-Turkish Association of Family Physicians (Founding member, Member Nr: 002, General Secretary 1990-1996, President 1996-1998, President of the Honorary Council 1998-2000, Vice President 2000-2003, President 2003-2005, Member of Honorary Council, Continuing-, EGPRN- TAHUD European Representative, Continuing)
13. TAHYK- Turkish Board of Family Medicine, General Secretary, member (2014-continuing)
14. Turkish Medical Association (UEMS)–Representative of the Specialization in Family Medicine (1997-2005)
15. Turkish Association of Family Medicine/Türkiye Aile Hekimleri Uzmanlık Derneği (TAHUD), Coordinator of Primary Care Research Network 2005-
16. TÜSAD (Turkish Respiratory Research Association/Türkiye Solunum Araştırmaları Derneği) Family Medicine Coordination Council member/Aile Hekimleri Koordinasyon Kurulu, member 2009...
17. British Journal of General Practice (BJGP, indexed in SCI), International Advisory Board (July 2010) & Peer Reviewer/, Advisory Board and a reviewer
18. International Mediterranean Journal of Family Medicine. International Advisory Board / member (2001-………….).
19. BMC Family Practice (WOS, SCI-expanded), Peer reviewer/peer reviewer,
20. Public Health Nursing (WOS, SCI-expanded), Peer reviewer (2006-...)
21. Konuralp Medical Journal (ISSN: 1309-3878, WOS, SCI-Expanded ), International Editorial Board
22. (2009- Portuguese journal of family medicine and general practice; International Board
23. Bulgarian Journal of General Medicine- Editorial Board
24. Türkiye Aile Hekimliği Dergisi, (Turkish Journal of Family Practice) Scientific Advisory Board and Peer reviewer / Scientific Advisory Board and Peer Reviewer (2002- .....)
25. Journal of Turkish Clinics Medical Sciences Advisory Board in Family Medicine /Türkiye Klinikleri Tıp Bilimleri Dergisi, (2003--.....)
26. Dicle Medical Journal/Dicle Tıp Dergisi, Dicle Üniversitesi Tıp Fakültesi Yayın Organı, Advisory Board (2003-....)
27. PRN Family Practice Journal/ Aile Hekimliği Dergisi, Advisory Board (2006-.....)
28. Family Medicine in Turkey/Türkiye’de Aile Hekimliği Dergisi, RNA Yayıncılık, Editorial Board, Yayın Kurulu (2006),
29. Family Medicine/Aile Hekimliği Dergisi (2007, isim değişikliği), Advisory Board/ Danışma Kurulu.
30. Turkish Family Physician (ISSN:1309-3347) Advisory Board, (February 2012...)
31. Eurasian Journal of Family Medicine (Printed ISSN: 2147-3161 / Electronic ISSN: 2147-3404), Editorial Board ( 2012-…)
32. Turkish Journal of Family Medicine and Primary Care (Electronic Journal ISSN 1307-2040, Editorial Board (2008-).
