Currently serving as Gastroenterologist and General Surgeon at Güneşli Erdem Hospital, Istanbul (since 2023)
Formerly practiced at Şişli Etfal Training and Research Hospital (2021–2023), Bağcılar Training and Research Hospital (2019–2021), Surp Pırgiç Armenian Hospital (2017–2019), Çamlıca Erdem Hospital (2011–2017), Göle State Hospital (2010–2011), and Edremit Military Hospital (2009–2010)
Has performed extensive laparoscopic procedures including bariatric operations, oncological resections, gallbladder, hernia, anti-reflux, appendectomy, endocrine, hepatobiliary, and anal/perianal surgeries
Academic Contributions
Mentors junior surgeons in laparoscopic and gastrointestinal surgical techniques
Leads clinical workshops on bariatric and anti-reflux surgery
Researches optimization of patient outcomes in minimally invasive abdominal procedures
Areas of Expertise
Bariatric Surgery: Sleeve gastrectomy, gastric bypass, gastric and swallowable balloons
Laparoscopic Oncological Surgery: Cancer resections for stomach, colon, and rectum
Gallbladder & Hernia Surgery: Cholecystectomy and various hernia repairs
Anti-reflux & Appendectomy: GERD procedures and appendicitis treatment
Anal & Hepatobiliary Procedures: Hemorrhoid and fistula repair, endocrine, and liver surgeries
Publications and Research
Dr. Hacım has authored more than 39 peer‑reviewed articles focused on minimally invasive and bariatric surgery. Highlights include studies on intraoperative pressure management, antiemetic dosing for obese patients, and post‑cholecystectomy outcomes, reflecting his dedication to evidence-based practice.
Patient Care Philosophy
Values clear communication and shared decision-making to ensure patients are well-informed
Committed to empathy and cultural awareness, especially for international patients
Offers online pre-consultations and remote follow-up via telemedicine to support continuity of care
Designs personalized plans that prioritize long-term health and recovery
Professional Affiliations
Member, Istanbul Medical Chamber
Member, Turkish Surgery Association
Member, Turkish Colon and Rectum Surgery Association
Member, Turkish Hepato‑Pancreato‑Biliary Surgery Association
FAQs
Is Dr. Nadir Adnan Hacım board-certified?
Yes. He is certified in general surgery and licensed to practice in Turkey.
What types of procedures does he perform?
He specializes in laparoscopic bariatric, gastrointestinal, hernia, gallbladder, anti-reflux, appendectomy, endocrine, cancer, and hepatobiliary surgeries.
Does he treat international patients?
Yes. He provides online pre-consultations and follow-up care for overseas patients.
How long is the typical hospital stay?
Most laparoscopic procedures require a 1–3 day stay; bariatric surgery may require 3–5 days depending on recovery.
What languages does he speak?
He speaks Turkish and English fluently and collaborates with multilingual coordinators at Erdem Hospital.
Can he treat gastrointestinal cancers?
Yes. He performs laparoscopic resections for stomach, colon, and rectal cancers.
Patient reviews
5
Excellent
8 reviews
Detailed information
5 stars
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Patient reviews
Canada,
Nov 30, -0001
Mayerly Conde
I would like to express my gratitude to the Doctor Adnan Hacim. He did my gastric sleeve on July 2024. He is an amazing doctor and did a great job, thank u doctor, nurses who take care of me and the person who help me to translate, all you…
United Kingdom,
Nov 25, 2024
Peach
I had a gastric sleeve done 4 months ago with Dr Hacim Adnan and honestly he is the best human being. He will talk you through everything and make you comfortable before anything is even done. Very nice and humble person. The pick up and drop off service was okay with respectful personnel and the hospital is very clean and the food is great ( if you are able to eat). The survey went well and I’ve lost weight and feeling okay overal. There is a nutritionist who checks up on my progress monthly and suggests new things to try and she’s just overal helpful. I highly recommend this hospital, if you had any doubts I can promise you everything will be okay! ❤️
Excelente servicio. Buen hospital Dr adnan todo un profesional y si traductora un encanto de mujer todo súper bien explicado
Spain,
Apr 03, 2024
Camelia Sgardea
Hola. El doctor Adnan es nr.1 profesional ,amable y con muchísimo confianza te opera tranquilo.
Turkey,
Mar 10, 2024
Orhan Güneş
Erdem hastahanesi grubu olarak yıllarca Ümraniye çakmak hastahanesi den ailece hizmet aldın Erdem günesli hastahanesi de 2024 şubat ayında oğlum kıl dönmesi ile ilgili operasyon geçirdi başta değerli hocam. Doç.dr Nadir Adnan hacım olmak üzere bütün hastahene personeline çok teşekkür ederim.kesinlikle tavsiye ederim
erdem hastanesinde dr nadir adnan hacim beye muayene oldum, tedavimin tüm aşamalarıyla çok detaylı ve ilgiliydi. sekreterinden hemşiresine kadar herkes çok ilgili davrandı her şey için çok teşekkür ederim
Turkey,
Aug 29, 2023
Bahar Aktaş
Dr adnan hacim beye midemdeki ağrı şikayetiyle başvurdum. Benimle çok güzel ilgilendi gerekli tedaviyi uyguladı. Adnan beye çok teşekkür ediyorum.
Netherlands,
Nov 16, 2022
Enzo Narvaez
Excellent!!
Excellent!!
From start to finish we were taking good care of and were in very good hands. My wife and I had a gastric balloon (Allurion), placed by Dr. Nadir Adnan,who really is a pro in these kind of treatment. Assistant Johan and translator Mohamed were very helpful in explaining and translating everything from the beginning till the end. From the day I started messaging with Johan, we got a good feeling from them. No question was too much and every bit of concern or doubts was taking away. The 5 🌟 service that came with the treatment was unique. Transport from airport, hotel,clinic and back went smoothly. Even the next day after the insertion, when we felt sick and nauseous 🤢, one single message to Johan and transport to the hospital was arranged in 10 minutes. The helpful nurses gave us intravenous treatment and after a few hours we felt pretty much better again. Dr. Adnan came by and check upon us to see if everything was good. They even wanted us to stay for the night (without extra costs) to be really sure that we were OK, but we felt that was not necessary, since the nausea and vomiting went away after a while. Very good service and attention from all involved. So we recommend Erdem Clinic 100% for the gastric balloon for sure. Keep up with the good work 👏
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