Koray Tuncer
23
years of experience
Dr Koray — Istanbul
- Specialisation: Gastroenterologist
- 23 years of experience
- Speaks:English
- Workplace: Turkey, Istanbul, Memorial Şişli Hospital
- Gastroenterologist with 5 international and 13 national publications, plus 8 international and 41 national presentations.
Dr. Koray Tuncer is a gastroenterology specialist at Memorial Şişli Hospital in Istanbul. He has contributed to medical science with 18 professional publications. Dr. Tuncer translates clinical findings into practice through 49 national and international presentations. He works at a JCI-accredited facility known for world-class patient safety standards.
- Completed gastroenterology fellowships at Haydarpaşa Numune Hospital and Ege University.
- Maintains membership in the Turkish Association for the Study of the Liver.
- Completed clinical internships at Kantonsspital Aarau and Kantonsspital Münsterlingen in Switzerland.
- Is an active member of the Turkish Society of Gastroenterology.
Excellent score
20 patient verified reviews
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Patient reviews
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Learn more about reviews.1-5 of 20 reviews
Anonymous • Basalioma
Ghana
14 June 2026
The surgeon was excellent
What surprised me most about my basalioma treatment wasn't the procedure itself, but the detailed skin examination I received. The surgeon was excellent. He made sure all removal options were discussed clearly, which was reassuring since I already had my diagnosis before arriving. Right now, the treated area is healing very well. While the medical care was superb and the clinic facilities are great, the administrative staff seemed a bit disorganized, which was the only downside. Despite that, based on the surgeon’s work, it’s a place I would suggest to others.
My Bookimed coordinator was highly skilled, had the passion and patience for her work and that translated to the numerous array of options provided to me to choose from based on my budget during the entire process.She interacted with me 24/7 just for us to have solution within my schedule. All information (proforma, visa assistance, travel guidance and estimated personal expenses) for the entire treatment were on point and I encourage all manner of persons seeking medical treatment abroad to choose Bookimed as their medical tourism partner.
1. Interpreter only come when the patient calls for his services and that is only during the day. If the interpreter can also support beyond the interactions with the specialist.
2. Airport and Internal movement are left to the patient to handle which can sometimes be a major challenge for some category of patients and given the language barrier.
3. Hospital discharges are very strict even if you the patient feels he/she need additional day(s) to be fit for a return to the hotel to continue the recovery.
Antonio Morales • Hair transplant
France
31 July 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
Anonymous • Keratoplasty
Moldova
20 June 2026
I can wholeheartedly recommend the Memorial Şişli Clinic
I can wholeheartedly recommend the Memorial Şişli Clinic. I underwent a deep anterior lamellar keratoplasty (DALK) on my left eye, and I now feel better than I had expected. I would like to express my sincere gratitude to the coordinating doctor, Sergey, and Dr Abdallah ÖZCAYA for their expertise and responsible approach. I particularly remember how Dr ÖZCAYA personally checked on me after the operation — this gave me confidence and peace of mind. The clinic was always available, and there were no additional costs. A special thank you to the interpreter, Daniela, for her excellent translation and constant help with communication.
I would like to express my sincere gratitude to Medical Coordinator Serhii Kravetskyi for his prompt arrangements for my treatment at the Memorial Şişli Clinic.To Professor Dr Abdullah ÖZKAYA for his high level of professionalism and the successful keratoplasty operation. To the interpreter, Daniela Tecer, for her attentive support and excellent work.
Anonymous • Breast Implant Revision
United Kingdom
8 June 2026
The surgeon dr ozturk was fantastic, friendly, knowledgeable and inspired confidence immediately
My biggest worry was what recovery would feel like this time, especially after having my old implants for well over ten years. It turned out to be about the same as my first surgery. The surgeon dr ozturk was fantastic, friendly, knowledgable and inspired confidence immediately performing a position adjustment and implant replacement, though it's still hard to compare the final result as surgery was only 5 days ago. The hospital facility was clean and private room was great. My main issue was with the general staff support, which could have been more attentive, having said that whenever I called they attended immediately and were kind. Despite that, the medical care itself was solid, and I'm satisfied with the outcome.
Translator amazing as was Dr Ozturk, friendly, professional, knowledgeable. Co-ordination of transport, Appointments etc smooth
Hospital staff could’ve been more proactive eg not leaving things out of reach, ensuring drinks etc on hand, although having said that they immediately attended any call bells and were kind, I just didn’t want to trouble them more than I needed to.
Anonymous • Immunotherapy with Keytruda (Pembolizumab)
Netherlands
31 May 2026
The doctor and all the staff have been very attentive and professional, which gives me confidence that I made the right choice of clinic and treatment process
My main concern before starting treatment was how my body would react to the drug. I’m undergoing a course of Keytruda immunotherapy for kidney cancer, receiving an infusion every three weeks. Yes, I have experienced some side effects. These are mainly digestive issues, and I feel a little more tired. Of course, I am still concerned that these might get worse over time. But I must say that the doctor and all the staff have been very attentive and professional, which gives me confidence that I made the right choice of clinic and treatment process.
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Qualifications
Dr. Koray Tuncer is a gastroenterology specialist at Memorial Şişli Hospital in Istanbul. He has contributed to the field with 18 scientific publications and 49 professional presentations. The specialist performs diagnostics and treatments for gastrointestinal and liver disorders.
Specialization and Experience
Dr. Tuncer focuses on clinical gastroenterology and hepatology. He treats diseases of the digestive system, including the stomach, intestines, and liver. The specialist has practiced at Memorial Şişli Hospital since 2009. He previously worked as a gastroenterologist at Private Yunus Emre Hospital for six years.
Work History
- 2009 – Present: Specialist in Gastroenterology at Memorial Şişli Hospital, Istanbul
- 2003 – 2009: Specialist in Gastroenterology at Private Yunus Emre Hospital, Istanbul
- 1995 – 1998: Chief Assistant in the Department of Internal Medicine at Kartal Training and Research Hospital
Education and Academic Training
Dr. Tuncer completed a four-year fellowship in gastroenterology at Ege University. He also underwent specialized training at Haydarpaşa Numune Hospital. His early medical education includes an MD from Istanbul University and residency at SSK Okmeydanı Hospital.
- 1999 – 2003: Fellowship in Gastroenterology, Ege University Faculty of Medicine, Izmir
- 1998 – 1999: Fellowship in Gastroenterology, Haydarpaşa Numune Hospital, Istanbul
- 1989 – 1993: Residency in Internal Medicine, SSK Okmeydanı Hospital, Istanbul
- 1982 – 1988: Doctor of Medicine, Istanbul University Faculty of Medicine
Research and Recognition
Dr. Tuncer participates in scientific exchange through international and national channels. He has published 5 international and 13 national articles. Furthermore, he has delivered 8 international presentations and 41 national presentations at medical congresses. He regularly attends postgraduate courses to stay updated on hepatology advancements.
International Internships
- 1987: Kantonsspital Münsterlingen, Switzerland – Summer Internship in Internal Medicine
- 1985: Kantonsspital Aarau, Switzerland – Summer Internship in Anesthesiology
Professional Memberships
- Turkish Society of Gastroenterology
- Turkish Association for the Study of the Liver
- Turkish Medical Association
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