Gastroenterology Prof. Dr. Fatih Oğuz Önder
✓ Medically verified profileProf. Dr. Fatih Oğuz Önder
✓ Medically verified profile
Quick answer
Prof. Dr. Fatih Oğuz Önder is a gastroenterologist at Acıbadem Atakent Hospital. He treats inflammatory bowel diseases, including Crohn’s disease and ulcerative colitis, as well as liver, pancreas, and biliary tract conditions. His areas of expertise also include Barrett’s esophagus, celiac disease, hepatitis, and endoscopic procedures such as ERCP and colonoscopy.
About Prof. Dr. Fatih Oğuz Önder
Prof. Dr. Fatih Oğuz Önder is a gastroenterologist at Acıbadem Atakent Hospital, with clinical interests spanning inflammatory bowel diseases, Barrett’s esophagus, celiac disease, hepatitis, and pancreatic, liver, and biliary tract conditions. His practice also includes digestive symptoms and disorders such as reflux, gastritis, and dyspepsia.
He graduated from Hacettepe University Faculty of Medicine in 2000 and completed Internal Medicine training at Ankara University Faculty of Medicine in 2007. He completed Gastroenterology training at Türkiye Yüksek İhtisas Training and Research Hospital in 2011, following research and clinical roles in internal medicine, medical oncology, and gastroenterology. He has been working with Acıbadem Healthcare Services since 2020.
International patients can consult Prof. Dr. Önder for evaluation and management of gastrointestinal, liver, pancreas, and bile duct conditions, as well as endoscopic procedures including gastroscopy, colonoscopy, esophagoscopy, and ERCP. He is a member of Turkish and European gastroenterology and liver research organizations.
Areas of Expertise
Conditions treated and procedures performed by this specialist.
Education
- 2011Türkiye Yüksek İhtisas Training and Research Hospital Gastroenterology
- 2007Ankara University Faculty of Medicine Internal Medicine
- 2000Hacettepe University Faculty of Medicine
Professional Experience
- 2020Acıbadem Healthcare Services
- 2012Tekirdağ - Çorlu Devlet Hospital (Zorunlu Hizmet)
- 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
- Turkish Journal of Gastroenterology Assistant Editor (2007 - )
- Turkish Liver Research Association
- 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 across the Acıbadem network — including 7 JCI-accredited hospitals — and stays with you in your own language, every step of the way.
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Hospitals
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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.”