Koray Tuncer

years of experience

Koray Tuncer

Specialization: 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.

4.6

Excellent score

20 patient verified reviews

1 star

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4 stars

15%

5 stars

80%

Patient reviews

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1-5 of 20 reviews

Anonymous • Prostate cancer

United Kingdom

Sep 25, 2026

Verified review.

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

Verified review.

Anonymous • Rhinoplasty (nose job)

Belgium

Sep 15, 2026

Verified review.

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

Verified review.

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

Verified review.

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. 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

Koray Tuncer

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Education and Academic Training

Research and Recognition

International Internships

Professional Memberships

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