Nezih Onur Ermerak

years of experience

Nezih Onur Ermerak

Specialization: Thoracic surgeon
17 years of experience
Speaks:
English
Workplace: Turkey, Istanbul, Memorial Göztepe Hospital
Serves as President of the Turkish Society of Chest Wall Deformities and Pectus.
Dr. Nezih Onur Ermerak is a Thoracic Surgery Specialist at Memorial Göztepe Hospital (2025–). He previously worked in the Department of Thoracic Surgery at Marmara University (2009–2025). He also served at Kilis State Hospital during compulsory service and war surgery (2015–2017).

He completed a Thoracic Surgery fellowship at Washington University in St. Louis (2019–2020). He then completed a Thoracic & Esophageal Surgery fellowship at Dalhousie University (2020–2022). He held a visiting fellowship at Universitätsspital Bern (2011–2012). He finished his residency at Marmara University (2009–2015).

He is President of the Turkish Society of Chest Wall Deformities and Pectus. He served on the Organizing Committee of CWIG 2023 in Istanbul. He completed MI-STARs (2020), MITS (2019), CITI (2024), and KOÇ Laboratory Animal Use certification (2025). He attended the AATS 103rd meeting (2023) and European Thoracic Surgery conferences (2024 and 2025).

4.6

Excellent score

4 patient verified reviews

1 star

2 stars

3 stars

25%

4 stars

5 stars

75%

Patient reviews

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1-4 of 4 reviews

Anonymous • Gastric sleeve surgery (Sleeve gastrectomy)

Ireland

Jun 7, 2026

Verified review.

The surgeon, staff, and clinic all get a 5/5 from me

My biggest worry was the recovery itself, specifically how tired and weak I would feel. I have to say, my energy level has been better than expected for this early stage. It’s a relief. The surgeon, staff, and clinic all get a 5/5 from me. The biggest eating challenge right now is having no appetite at all, which is an adjustment when you know you need to get your liquids in. I can manage about a quarter cup per sitting, which makes sense given they removed 80-85% of my stomach. Overall, this was the right decision and I would certainly recommend this clinic.

Every Question Answered, Always Kept Intouch, So Helpful and Kind, I couldnt be more comfortable with how Bookimed handle everything. They did an amazing job and any doubt or worry I had they made sure to not worry. The hospital I went to was amazing and they did everything thoroughly. The doctor assigned to me was amazing and so good. After the procedure I was allowed to go back to my hotel 2 days after. My translator Betul on the 2nd day to the day I left was amazing and so pleasant to speak to.

The English Translator on the first day was nice but very invasive and asked personal questions which he was asked not to ask and you could tell that he didnt have much experience.

Anonymous • Diabetes type 2

Kyrgyzstan

Apr 8, 2026

Verified review.

To be honest, if a friend asked me, I wouldn’t recommend this treatment. It’s been 15 days, and so far the results have been rather modest — my blood sugar levels have improved slightly, but that’s about it. The clinic itself deserves high praise; everything is very modern and clean. However, the work of the doctor and staff left a mediocre impression. When I asked questions, time was limited, and I didn’t manage to ask everything I wanted to; the doctor simply said, ‘If you like, come back tomorrow.’ The consultation lasted a mere 15 minutes. The transfer services were very poorly organised, with issues regarding punctuality, constant waiting and frequent changes of interpreters. Perhaps there will be improvements to the treatment in the future. Overall, I got the impression that the hospital’s primary concern is simply making money, and everything else is of secondary importance.

Brian Larson • Male Check-up

United States of America

Jan 30, 2026

Verified review.

I was very satisfied by Memorial hospital's men’s essential health check-up

I was very satisfied by Memorial hospitals men’s essential health check up. Everything went very smoothly, and I feel that my concerns were addressed, and the tests were explained well. I have my results. To show my doctor back home.

Getting important medical tests that I’ve never had my life at 67 like stress test EKG, ultrasounds of my abdomen, and neck

It really can’t be helped, but that the hospital is a little far out of the center of Istanbul

Anonymous • Stem cell therapy for Parkinson's disease

Azerbaijan

May 17, 2026

Verified review.

The doctor's manner of talking and her professionalism.

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Qualifications

EXPERIENCE

2025 – Present, Istanbul/Turkey

MEMORIAL GÖZTEPE HOSPITAL

Thoracic Surgery Specialist

2015 – 2017, Kilis/Turkey

KILIS STATE HOSPITAL

Thoracic Surgery Clinic (Compulsory Service / War Surgery)

2009 – 2025, Istanbul/Turkey

MARMARA UNIVERSITY, FACULTY OF MEDICINE

Department of Thoracic Surgery

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EDUCATION

2020 – 2022, USA

DALHOUSIE UNIVERSITY, FACULTY OF MEDICINE

Fellowship in Thoracic and Esophageal Surgery

2019 – 2020, Washington/USA

WASHINGTON UNIVERSITY IN ST. LOUIS, SCHOOL OF MEDICINE

Fellowship in Thoracic Surgery

2011 – 2012, Bern/Switzerland

UNIVERSITÄTSSPITAL BERN, DEPARTMENT OF THORACIC SURGERY

Visiting Fellow

2009 – 2015, Istanbul/Turkey

MARMARA UNIVERSITY, FACULTY OF MEDICINE

Residency in Thoracic Surgery

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PROFESSIONAL MEMBERSHIPS

• Turkish Society of Chest Wall Deformities and Pectus (President)

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PROFESSIONAL TRAININGS, COURSES, AND CONFERENCES ATTENDED

• Minimally Invasive Surgery of the Thorax for Canadian Fellows (MI-STARs) – Montreal, Quebec City, Ottawa, 2020

• Advanced Minimally Invasive Thoracic Procedures (MITS) Course – Los Angeles, USA, 2019

• Collaborative Institutional Training Initiative (CITI) Program – 2024

• 25th Chest Wall International Group (CWIG) Annual Meeting – Nagano, Japan, 2025

• 33rd European General Conference on Thoracic Surgery – Budapest, Hungary, 2025

• AATS 103rd Annual Meeting – Los Angeles, USA, 2023

• American Society of Clinical Oncology (ASCO) Annual Meeting – Chicago, USA, 2023

• 32nd European General Conference on Thoracic Surgery – Barcelona, Spain, 2024

• 24th Chest Wall International Group (CWIG) Annual Meeting – Phoenix, USA, 2025

• KOÇ University Laboratory Animal Use Certificate – 2025

• MedXpert Chest Wall Workshop – Basel, 2023

• Turkish Thoracic Research Society Annual Congress – Cyprus, 2023

• 23rd Chest Wall International Group (CWIG) Annual Meeting – Istanbul, Turkey, 2023 (Organizing Committee)

Nezih Onur Ermerak

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