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Assoc. Prof. Dr. Kemal Öncü Gastroenterology

Assoc. Prof. Dr. Kemal Öncü

✓ Medically verified profile
Gastroenterology

Assoc. Prof. Dr. Kemal Öncü

✓ Medically verified profile
29+ years experienceLanguages: Turkish, EnglishOnline consultationAcibadem Bodrum Hospital · Muğla
★★★★★ From 2,400+ verified Acibadem patient reviews
Assoc. Prof. Dr. Kemal Öncü
Profile

About Assoc. Prof. Dr. Kemal Öncü

Quick answer

Assoc. Prof. Dr. Kemal Öncü is a Gastroenterology specialist at Acibadem Bodrum Hospital in Muğla with 29+ years of experience.

He treats upper gastrointestinal bleeding, malignant biliary obstruction, functional constipation, dyssynergic defecation, acute pancreatitis, benign recurrent intrahepatic cholestasis, and liver fibrosis, and performs percutaneous endoscopic gastrostomy and upper gastrointestinal endoscopy. He consults in Turkish and English and offers online video consultation.

Assoc. Prof. Kemal Öncü is a gastroenterologist with specialized training from Gulhane Military Medical Academy, where he completed his gastroenterology training in 2007. He brings clinical expertise in digestive diseases and liver conditions, and has been part of the Acıbadem Health Group since 2018. He is an active member of the Turkish Gastroenterology Association and the Turkish Association for Liver Research, contributing to professional development and liver-focused clinical research. Known for a patient-centered approach, he combines evidence-based care with clear communication to help patients manage complex gastrointestinal and hepatic disorders.

Clinical Focus

Areas of Expertise

Conditions treated and procedures performed by this specialist.

Upper gastrointestinal bleedingMalignant biliary obstructionFunctional constipationDyssynergic defecationAcute pancreatitisBenign recurrent intrahepatic cholestasisLiver fibrosisPercutaneous endoscopic gastrostomyUpper gastrointestinal endoscopy
Background

Education

  • 2007Gulhane Military Medical Academy Gastroenterology
  • 2001Gulhane Military Medical Academy Internal Medicine
  • 1994Gulhane Military Medical Academy Faculty of Military Medicine
Career

Professional Experience

  • 2018Acibadem Health Group
  • 2016–2018VM Medicalpark Kocaeli Hospital
  • 2008–2016GATA Haydarpasa Training Hospital / Gastroenterology
  • 2007–2008TRNC Kyrenia Military Hospital
  • 2004–2007GATA Haydarpasa Training Hospital / Gastroenterology
  • 2001–2004Antalya Karpuzkaldıran Dispensary Chief Medical Office
  • 1997–2001GATA / Internal Medicine
Affiliations

Professional Memberships

  • Turkish Gastroenterology Association
  • Turkish Association for Liver Research
Research

Selected Publications

  • Serum matrix metalloproteinase-9 and tissue inhibitor of metalloproteinase-1 expression in patients with familial mediterranien fever Turk J Gastroenterol. Nov;26(6):487-491 (2015) M Dinç, A Tanoğlu, Y Yazgan, Y Beyazıt, K Öncü, Y Önem, S Hıra, M Kaplan, İ Küçük, Y.S Sakın, L Demirtürk
  • Can Serum Fetuin-A Be Regarded as an Inflammatory Marker Among Patients Digestive Diseases and Sciences. Nov.58;11:3212-3217. (2013) Kemal Oncu, Yusuf Yazgan, Alpaslan Tanoğlu, Mustafa Kaplan, Fatih Ermiş, Osman Metin Ipcioglu, Muammer Kara, Irfan Kucuk, Halil Onur Ozari,
  • Upper gastrointestinal bleeding as an initial manifestation of metastasis secondary to choricarcinoma Turk J Gastroenterol. Dec;24(6):565-567 (2013) ). Y Yazgan, K. Öncü, M. Kaplan, A. Tanoğlu, İ. Küçük, H.O. Özarı, U. Berber, L.Demirtürk.
  • Indications, complications and long-term follow-up of patients undergoing percutaneous endoscopic gastrostomy: A retrospective study Wien Klin Wochenschr. Mar;124(5-6):148-153 (2012) Ermis F, Ozel M, Oncu K, Yazgan Y, Demirturk L, Gurbuz AK, Akyol T, Nazik H,
  • Malignant Biliary Obstruction Increases significantly Serum Lipid Levels: A Novel Biochemical Tumor Marker? Hepatogastroenterology. Mar 2;59(119). 12017. (2012) Yazgan Y, Oncu K, Kaplan M, Tanoglu A, Kucuk I, Dinç M, Demirturk L,
  • Determination of the frequency of dyssynergic defecation and patient characteristics in patients with functional constipation Turk J Gastroenterol. Dec;21(4):372-380 (2010) Öncü K, Özel AM, Demirtürk L, Gürbüz AK, Yazgan Y, Kızılkaya E,
  • Efectiveness of interleukin-1 receptor antagonist (Anakinra) on cerulein-induced experimental acute pancreatitis in rats Scandinavian Journal of Gastroenterology, 49(9), 1124-1130 Kaplan M, Yazgan Y, Tanoglu A, Berber U, Öncü K, Kara M, Demirel D, Küçük İ, İpçioğlu O.M.
  • Benign recurrent intrahepatic cholestasis: late initial diagnosis in adulthood Annals of Hepatology, Apr-Jun;9(2): 207-210, (2010) Ermis F, Oncu K, Ozel M, Yazgan Y, Gurbuz AK, Demirturk L, Demirci H, Akyol T, Hahoglu A,
  • Comparison of the effects of intravenous midazolam alone and in combination with meperidine on hemodynamic and respiratory responses and on patient compliance during upper gastrointestinal endoscopy: a randomized, double-blind trial Turk J Gastroenterol. Mar;19 (1):8-13 (2008) Ozel AM, Oncü K, YazganY, Gürbüz AK, Demirtürk L,
  • The effect of taurine treatment on oxidative stress in experimental liver fibrosis Hepatol Res. Apr;28(4):207-215 (2004) Refik Mas M, Comert B, Oncu K, Vural SA, Akay C, Tasci I, Ozkomur E, Serdar M, Mas N, Alcigir G, Yener N.
Good to Know

Frequently Asked Questions

What is Dr. Kemal Öncü's specialty?
Dr. Kemal Öncü is a specialist in Gastroenterology at Acibadem. For a personalised assessment, the Acibadem international patient team can review your medical history and reports and explain the suitable next steps.
Which hospital does Dr. Kemal Öncü practise at?
Dr. Kemal Öncü sees patients at Acibadem Bodrum Hospital in Muğla. The international patient team can confirm current availability and help you plan a consultation or visit.
What languages can I use when consulting Dr. Kemal Öncü?
Consultations with Dr. Kemal Öncü are supported in Turkish and English. In addition, Acibadem provides multilingual coordination and interpreter support so international patients can communicate clearly throughout their care.
How can I book an appointment with Dr. Kemal Öncü?
You can request an appointment with Dr. Kemal Öncü using the appointment form on this page, or by contacting the Acibadem international patient team by phone or WhatsApp. After you share your details, the team checks availability and confirms your appointment, usually within 24 hours.
Is an online video consultation available with Dr. Kemal Öncü?
Yes. Dr. Kemal Öncü offers online video consultations, so you can discuss your condition and reports with the specialist before making any travel arrangements. The international patient team can help you schedule a secure video visit.
How many years of experience does Dr. Kemal Öncü have?
Dr. Kemal Öncü has around 29 years of professional experience in Gastroenterology. A summary of education, experience and professional memberships is available on this page.
Can international patients arrange treatment with Dr. Kemal Öncü?
Yes. Acibadem supports international patients end to end — from the first consultation and treatment planning through appointment scheduling, interpretation during the stay and follow-up after returning home. Sharing your case for an initial assessment is free of charge.
How do I get a second opinion involving Dr. Kemal Öncü?
You can request an independent review of your diagnosis and proposed treatment. Share your medical reports through the consultation or "Ask a Doctor" form on this site, and the team will arrange a specialist review and explain the available options.
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Assoc. Prof. Dr. Kemal Öncü Appointment with Kemal Öncü Gastroenterology

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Patient Voices

What patients say about Assoc. Prof. Dr. Kemal Öncü

★★★★★From 2,400+ verified patient reviews
★★★★★ Verified Patient

“From the first consultation to discharge, my gastroscopy went smoothly. The expertise of Assoc. Prof. Dr. Öncü put my mind completely at ease.”

Sofia H. · Norway March 2026
★★★★★ Verified Patient

“We are deeply grateful for the care our child received for check-up. Dr. Öncü put both our child and us at ease. I would happily travel here again for any treatment.”

Abdullah V. · Saudi Arabia July 2025
★★★★★ Verified Patient

“Thanks to the team here, my heavy-bleeding treatment could not have gone better. Dr. Öncüloğlu was honest about my options instead of pushing treatment. I am deeply grateful for everything.”

Maria E. · Bosnia and Herzegovina September 2025
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