Prof. Dr. Yaşar Çolak
Gastroenterology
About Yaşar Çolak
Prof. Yaşar Çolak is a gastroenterologist and hepatologist with advanced endoscopic expertise. In 2019–2020, he completed specialized advanced endoscopic training at Cleveland Clinic Florida, Department of Advanced Endoscopic Applications. He currently practices at Acibadem Health Group (2024), where he provides liver and gastrointestinal care using advanced endoscopic techniques.
His professional memberships include the American Gastroenterology Association (AGA), the European Association for the Study of the Liver (EASL), the Turkish Association for the Study of the Liver, the Turkish Society of Gastroenterology, and the European Association for Gastroenterology, Endoscopy and Nutrition (EAGEN). These affiliations reflect his ongoing professional development and engagement with international medical organizations.
Education
- 2019 – 2020 Cleveland Clinic Florida, Department of Advanced Endoscopic Applications (United States)
- 2016 Department of Gastroenterology, Bezmialem Vakıf Gureba Hospital, ERCP and Endoscopic Ultrasonography
- 2015 – 2016 Cleveland Clinic Florida, Department of Advanced Endoscopic Applications (United States)
- 2014 Florence Nightingale Hospital, Liver Transplantation Unit
- 2013 Academic Medical Center (AMC), University of Amsterdam, The Netherlands. European Postgraduate School, Endoscopic Ultrasound (EUS) Training
- 2011 Gastroenterology at Istanbul Goztepe Training and Research Hospital
- 2008 Istanbul University Istanbul Faculty of Medicine Internal Medicine
- 2002 Istanbul University Istanbul Faculty of Medicine
Experience
- 2022 – 2025 Memorial Ataşehir and Şişli Hospitals, Gastroenterology Clinic
- 2024 Acibadem Health Group
- 2020 – 2022 Medicana Atasehir Hospital
- 2018 – 2020 Department of Gastroenterology, Istanbul Medeniyet University Faculty of Medicine (Professor)
- 2016 – 2019 Presidential Health Coordinatorship
- 2013 – 2018 Department of Gastroenterology, Istanbul Medeniyet University Faculty of Medicine (Associate Professor)
Professional Memberships
- American Gastroenterology Association (AGA)
- European Association for the Study of the Liver (EASL)
- Turkish Association for the Study of the Liver
- Turkish Society of Gastroenterology
- The European Association for Gastroenterology, Endoscopy and Nutrition (EAGEN)
Selected Publications
- Risk factors for local recurrence of large gastrointestinal lesions after endoscopic mucosal resection. Tech Coloproctol. 2022 Jul;26(7):545-550. doi: 10.1007/s10151-022-02623-y. Epub 2022 May 2. PMID: 35499748. Colak Y, Hasan B, Hassaballa W, Ur Rashid M, Strassmann V, DaSilva G, Wexner SD, Erim T.
- An Alternative Method for Treating Dumping Syndrome Using Hemoclips. Cureus. 2021 May 6;13(5):e14869. doi: 10.7759/cureus.14869. PMID: 34113505; PMCID: PMC8177030. Yavuz A, Akan K, Ulaşoğlu C, Tuncer İ, Çolak Y.
- Pathogenetic mechanisms of nonalcoholic fatty liver disease and inhibition of the inflammasome as a new therapeutic target. Colak Y, Badar H, Erkalma B, Kanwarpreet T, Xaralambos Z, Emanuele LM, Erim T.
- Recurrent Gastrointestinal Bleeding in an HIV-Positive Patient: A Case Report. Cureus. 2020 Sep 27;12(9):e10688. doi: 10.7759/cureus.10688. PMID: 33133853; PMCID: PMC7593209. Yavuz A, Toksöz Yildirim AN, Akan K, Colak Y, Tuncer I.
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