Yasar Colak
13
years of experience
Yasar Colak
- Specialization: Gastroenterologist
- 13 years of experience
- Speaks:English
- Online consultations: available
- Workplace: Turkey, Istanbul, Memorial Şişli Hospital
Dr. Yasar Colak is a Professor of Gastroenterology at Memorial Şişli Hospital in Istanbul. He has deep expertise in liver transplantation and therapeutic endoscopy. Dr. Colak served as an invited lecturer at the Cleveland Clinic Florida. He also worked in the Presidential Health Coordinatorate in Turkey.
- Specializes in liver transplantation and digestive tract disorders.
- Completed clinical training at the Cleveland Clinic Department of Endoscopic Applications.
- Treats patients at Memorial Şişli, the first JCI-accredited hospital in Turkey.
- Formerly served as an Associate Professor at Istanbul Civilization University.
Online consultation with Yasar Colak
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Price on request
Excellent score
20 patient verified reviews
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Patient reviews
About clinic Memorial Şişli Hospital
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Learn more about reviews.1-5 of 20 reviews
Anonymous • Prostate cancer
United Kingdom
Sep 25, 2026
The support staff were truly exceptional, making a very difficult situation feel much more manageable
If you are looking into this clinic for prostate cancer treatment, I can offer my perspective. The support staff were truly exceptional, making a very difficult situation feel much more manageable, and the clinic facilities were solid. I would say my experience was overall good. However, there were some communication hurdles to navigate. While general language support was adequate, I felt this was a weak point during crucial consultations with the surgeon himself, which led to some uncertainty. This is the main reason for my lower rating for the doctor. It's just something to be prepared for. I am now focused on my recovery.
Overall good
Language support was adequate
Angelo • Stem Cell Therapy
Portugal
Sep 28, 2026
Anonymous • Rhinoplasty (nose job)
Belgium
Sep 15, 2026
I had a wonderful experience
Dr. Malikgazi was very dedicated and friendly; I would always want to go to him for any future plastic surgery. The hospital is beautiful with very helpful staff, and I thank the interpreters Nurcan and Berk who helped me the entire time. The food was my only issue. The portions were very small, and it was difficult to get more until I insisted. It is still too early to see the final result of my rhinoplasty, which involved a specific technique to change certain parts of my nose. I did have an extra expense for an echocardiogram because of a previous heart surgery. You don't have to bring anything; the hospital and Hotel Uranus are luxury.
The plastic surgeon was very dedicated and friendly. I would always want to go to him if I ever want anything in plastic surgery in the future. It is Doctor Malikgazi.The plastic surgeon was very dedicated and friendly. I would always want to go to him if I ever want anything in plastic surgery in the future. It is Doctor Malikgazi. It is a beautiful hospital with very friendly staff. There are various interpreters who are willing to help you anywhere. I thank Nurcan and Berk once again who helped me the entire time. Very friendly and helpful staff at the hospital.
as well organized. A beautiful hospital. Friendly staff and good talks everywhere. I would also like to thank Nurcan and Berk once again who helped me with erything. I foundevEverything w the food there very bad and the portions very small. If you ask for more food, they bring absolutely nothing. I insisted on a bit more food and eventually they gave me an extra portion.
Antonio Morales • Hair transplant
France
Jul 31, 2025
Whether it's the doctors, nurses or reception staff, many other hospitals should take inspiration from the Turkish hospital model
The quality of the hospital service is second to none, with well-organised, highly competent services that are always available to patients.
Whether it's the doctors, nurses or reception staff, many other hospitals should take inspiration from the Turkish hospital model.
The hospitals are like luxury hotels, you feel good, you are looked after and followed throughout your stay.
Finally, the money I spent there was really justified.
Thank you to everyone who looked after me during my 14-day stay.
Of course I recommend Istanbul Memorial Hospital.
Antonio. M
Kondratiuk Alina • Breast Implants with Breast Lift
Ukraine
Aug 11, 2026
The consultation with the doctor was decisive for me
The consultation with the doctor was decisive for me. He not only answered questions but also thoroughly explained the risks of the combined surgery, honestly assessed my initial data for choosing implant sizes, and justified why a lift with a periareolar incision would be best in my case. I am currently in the recovery stage, and my condition is exactly as I expected after all the explanations. Importantly, there were no additional expenses beyond the amount paid. Everything went according to plan.
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Qualifications
Dr. Yasar Colak is a Professor of Gastroenterology at Memorial Şişli Hospital in Istanbul. He also served as an invited lecturer at the Cleveland Clinic Florida in the United States. His practice uses advanced endoscopic applications and modern treatments for digestive disorders.
Clinical Expertise and Academic Roles
Dr. Colak treats digestive system conditions. He performs advanced interventions for patients. This work uses specialized tools to treat chronic gastrointestinal diseases. He also served as the Presidential Health Coordinator between 2016 and 2019.
Professional Background
- 2022–Present — Professor of Gastroenterology — Memorial Şişli Hospital, Istanbul
- 2021–2022 — Professor of Gastroenterology — Medicana Ataşehir International Hospital
- 2018–2021 — Professor of Gastroenterology — Istanbul Civilization University
- 2013–2018 — Associate Professor — Istanbul Civilization University Gastroenterology Department
- 2016–2016 — Gastroenterology Specialist — Bezmialem Foundation Gureba Hospital
Global Training
The doctor completed training at the Cleveland Clinic Florida in the United States. He worked in the Department of Advanced Endoscopic Applications during 2015 and 2016. Later, he returned to the same department as an Invited Lecturer in 2019. In 2014, he also gained experience in the Sisli Florence Nightingale Liver Transplantation Unit.
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