Gastroenterology Prof. Dr. Fatih Oğuz Önder
✓ Medically verified profileProf. Dr. Fatih Oğuz Önder
✓ Medically verified profile
About Prof. Dr. Fatih Oğuz Önder
Quick answer
Prof. Dr. Fatih Oğuz Önder is a gastroenterologist at Acibadem Atakent Hospital in İstanbul with more than 25 years of experience.
He treats chronic hepatitis D, chronic hepatitis B, hepatitis C virus infection, autoimmune hepatitis, ulcerative colitis, pouchitis, primary sclerosing cholangitis, malignant biliary strictures, and portal biliopathy. He offers consultations in Turkish and English, including online video consultation.
Prof. Fatih Oğuz Önder is a gastroenterologist with extensive clinical and academic experience. He completed his gastroenterology training at Turkey High Specialization Training and Research Hospital in 2011. Since 2020 he has been affiliated with Acıbadem Health Group, where he provides patient care and contributes to clinical practice.
He is active in the professional community as a member of the Turkish Gastroenterology Association, the Turkish Association for Liver Research, the European Association for the Study of the Liver (EASL), and United European Gastroenterology. Since 2007 he has served as an assistant editor for the Turkish Journal of Gastroenterology, supporting scientific review and publication in the field.
Areas of Expertise
Conditions treated and procedures performed by this specialist.
Education
- 2011Turkey High Specialization Training and Research Hospital Gastroenterology
- 2007Ankara University Faculty of Medicine Internal Medicine
- 2000Hacettepe University Faculty of Medicine
Professional Experience
- 2020Acibadem Health Group
- 2012Tekirdag – Corlu State Hospital (Compulsory Service)
- 2008–2012Ankara Türkiye Yüksek İhtisas Training and Research Hospital Gastroenterology Clinic / Research Assistant
- 2007–2008Ankara Dr. Abdurrahman Yurtaslan Oncology Training and Research Hospital Medical Oncology Clinic (Compulsory Service)
- 2001–2006Ankara University Faculty of Medicine, Department of Internal Medicine / Research Assistant
Professional Memberships
- Turkish Gastroenterology Association
- Assistant editor of Turkish Journal of Gastroenterology (2007 – )
- Turkish Association for Liver Research
- European Association For The Study Of The Liver (EASL)
- United European Gastroenterology
Selected Publications
- Entecavir treatment of chronic hepatitis D Clinical Infectious Diseases (ISI) , 645-650 pp., 2012 , DOI: 10.1093/cid/cis459 Kabaçam G, Onder FO, Yakut M, Seven G, Karatayli SC, Karatayli E, Savas B,Idilman R,Bozdayi AM, Yurdaydin C.
- The cost-effectiveness of treating chronic hepatitis B patients in a median endemic and middle income country. European Journal of Health Economics (ISI) , 663-676 pp., 2012 , DOI: 10.1007/s10198-012-0413-8 Toy M, Onder FO, Idilman R, Kabacam G, Richardus JH, Bozdayi M, Akdogan M,Kuloglu Z, Kansu A, Schalm S, Yurdaydin C.
- Evaluation of preoperative predictors of development of pouchitis after ileal-pouch-anastomosis in ulcerative colitis. Clinics and Research in Hepatology and Gastroenterology (ISI) , 622-627 pp., 2012 , DOI: 10.1016/j.clinre.2012.04.012. Kalkan IH, Dağli Ü, Önder FO, Tunç B, Öztaş E, Ülker A, Şaşmaz N.
- Features of systemic lupus erythematosus in patients with autoimmune hepatitis. Rheumatology International , false pp., 2012 , DOI: 10.1007/s00296-012-2607-x Onder FO, Yürekli OT, Oztaş E, Kalkan IH, Köksal AS, Akdoğan M, Saşmaz N, Kayaçetin E.
- Age- and region-specific hepatitis B prevalence in Turkey estimated using generalized linear mixed models: a systematic review. BMC Infectious Disease (ISI) , 2011 , DOI: 10.1186/1471-2334-11-337. Toy M, Önder FO, Wörmann T, Bozdayi AM, Schalm SW, Borsboom GJ, van Rosmalen J, Richardus JH, Yurdaydin C.
- Evaluation of patients with primary sclerosing cholangitis-like cholangiogram Akademik Gastroenterology , 61-65 pp., 2011 Öztaş E, Parlak E, Dişibeyaz S, Ödemiş B, Kalkan İH, Etik DÖ, Önder FO, Kaçar S, Şaşmaz N
- Contribution of cytology brush centrifuge water examination to smear in malignant biliary strictures Journal of Academic Gastroenterology , 64-66 pp., 2010 Metin RO, Parlak E, Aydoğ G, Etik DÖ, Öztaş E, Önder FO, Dişibeyaz S, Şaşmaz N, Şahin
- Doppler ultrasonography and cholangiography findings are not correlated in portal biliopathy Akademik Gastroenterology , 70-72 pp., 2010 Tola M, Özbülbül N, Önder FO, Parlak E, Dişibeyaz S, Çiçek Bahattin, Yurdakul M, Şaşmaz N, Şahin B.
- Adrenal Insufficiency Due to Bilateral Adrenal Hemorrhage Following Coronary Bypass Surgery: CaseReport Türkiye Klinikleri , 762-765 pp., 2010 Sezer K, Önder FO, Güllü S.
- Hepatitis B and C Virus Seroprevalence in Patients with Non-Hodgkin’s Lymphoma: A Single Center Experience Acta Oncologica Turcica , 27-29 pp., 2009 Arslan UY, Önder FO, Uncu D, Tokluoğlu S, Gökdurnalı A, Çelenkoğlu G, Utkan G, Alkış N.
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A dedicated team, from first message to follow-up
Our international patient office coordinates your appointment, travel and treatment at JCI-accredited Acıbadem hospitals — and stays with you in your own language, every step of the way.
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Treatments Performed
What patients say about Prof. Dr. Fatih Oğuz Önder
★★★★★From 2,400+ verified patient reviews“We travelled from abroad for our child's newborn care and felt safe the whole way. Prof. Dr. Gündüz was wonderful with our child and so patient. I am deeply grateful for everything.”
“I flew in specifically for throat surgery and was treated with the utmost professionalism. Prof. Dr. Fırat answered all of my questions with patience. I have already recommended Acibadem to my family.”
“My daughter's seizure management was handled with such patience and kindness. Assoc. Prof. Dr. Aslan was wonderful with our child and so patient. I would recommend this team to anyone.”
“Choosing Acibadem for my hearing test was the best decision I made. I cannot thank Dr. Gence enough for the skill and kindness shown.”