Page 3 - Best gastroenterologists in Istanbul: TOP 73 doctors

With over 35 years of experience, Dr Osman Serdar Akkaya is a senior dermatologist at ÜMRAN TIP MERKEZİ, specializing in both medical and cosmetic dermatology.

• Expert in general dermatology, treating conditions like psoriasis and eczema
• Specializes in dermato-oncology for skin tumor evaluation and surgery
• Offers cosmetic procedures including fillers, mesotherapy, and chemical peels
• Skilled in laser and light-based therapies for various skin issues

Dyt. Yaren Nur Güngör creates personalized nutrition programs to manage diabetes, thyroid disorders, and weight challenges at ÜMRAN TIP MERKEZİ.

• Specializes in clinical nutrition for metabolic conditions
• Develops tailored weight management plans
• Offers sports nutrition strategies for athletes
• Focuses on pediatric and adolescent nutrition
• Provides preventive nutrition and lifestyle counseling

1,100+ gastroenterology procedures performed – Dr. Koçak specializes in complex liver and gastrointestinal conditions at Emsey Hospital.

• Over 29 years of experience in internal medicine and gastroenterology
• Expert in advanced endoscopic techniques like chromoendoscopy and polypectomy
• Trained at Istanbul University Cerrahpasa Faculty of Medicine
• Specializes in treating complex gastrointestinal bleeding cases

Professor Doctor Ali Solmaz combines surgical expertise with editorial roles in gastroenterology journals at Erdem Hospital.

• Specializes in minimally invasive techniques for complex digestive disorders
• Associate Professor with training at Marmara University
• Active member of IFSO and other prestigious surgical associations
• Editorial board member for multiple gastroenterology journals

Specializes in gastroenterology surgery with 14+ years of experience – Dr. Hacim performs advanced laparoscopic procedures at Erdem Hospital.

• Expert in laparoscopic gastric and colorectal surgeries
• Member of Turkish Hepato-Pancreato-Biliary Surgery Association
• Trained at Şişli Etfal Training and Research Hospital
• Performs minimally invasive procedures for digestive conditions

Specialist Surgeon Doctor Rafail Ibayev excels in both laparoscopic and open gastrointestinal procedures, offering extensive surgical expertise at Erdem Hospital.

• Performs a wide range of minimally invasive and open surgeries
• Skilled in treating complex gastrointestinal and hepatobiliary conditions
• Experienced in advanced oncoplastic and benign breast surgeries
• Specializes in thyroid and endocrine surgical procedures
• Proficient in endoscopic diagnostic and therapeutic techniques

Dr. Osman Aktas has been serving as a general surgeon at Ataşehir Avicenna Hospital since 2005. Born in Kayseri in 1960, he graduated with his medical degree from Ankara University in 1983. Following his graduation, he fulfilled his military service in medical units for two years. He completed his general surgery residency at GATA from 1986 to 1990. After specializing in general surgery, He held key positions as head of general surgery departments and chief physician in several prominent military hospitals, including Tatvan, Diyarbakır, Ankara, and Manisa.

Dr. Osman has had a special focus on endoscopic surgery since 1995. He received advanced training in laparoscopic surgery techniques in Germany and has successfully performed a wide range of laparoscopic procedures. His expertise extends to gallbladder surgery, abdominal wall and inguinal hernia repairs, appendicitis, reflux and stomach surgeries, as well as complex cases such as gastrointestinal tumors, intestinal obstructions, and various other intestinal diseases, all managed through minimally invasive methods.

In 2002, Dr. Osman transitioned to the private sector, where he broadened his practice to include modern treatments for anal diseases like hemorrhoids, fistulas, and fissures, utilizing advanced techniques such as laser therapy.

Dr. Osman is also recognized for his significant contributions to oncological surgery. He has a wealth of experience in the surgical treatment of various cancers, including breast and thyroid cancer, where he has implemented new treatment methods that reduce the risk of complications. His surgical expertise spans critical cancer surgeries, such as the Whipple procedure for pancreatic cancer, colorectal cancer resections, gastric cancer, and other complex malignancies. Additionally, his skills in metabolic surgery have led to lasting outcomes for patients suffering from obesity and diabetes, ensuring a better quality of life through sustained weight loss and reduced risk of diabetes.

With his vast experience and advanced skills in both laparoscopic and cancer surgeries, Dr. Osman remains at the forefront of surgical excellence, offering innovative and comprehensive care to all his patients.

Dr. Jumana Baryhe is known for her exceptional patient care and wide spectrum of procedures in Gastroenterology.

• Specializes in cosmetic, dental, and surgical procedures
• Renowned for high patient satisfaction and care
• Experienced in diverse gastroenterological treatments

Assoc. Dr. Gokmen Ozturk is a General Surgery Specialist with 25 years of experience. He graduated from Bursa Uludag University Faculty of Medicine in 1994. He completed his surgical training at Okmeydanı Training and Research Hospital. Dr. Ozturk has also served as Deputy Chief Physician at Trabzon Fatih Regional Hospital.

Dr. Ozturk treats complex surgical cases, including bowel and colorectal cancer, breast cancer, liver metastasis, thyroid diseases, and obesity. He is skilled in minimally invasive and advanced surgical techniques. His approach helps improve patient outcomes and recovery. Dr. Ozturk currently works at Medipol University and Nisa Hospital. He is known for maintaining high standards of care and patient satisfaction.

Associate Professor Meryem Keceli Basaran specializes in pediatric gastroenterology, with a focus on complex digestive disorders at Biruni University Hospital.

• Member of ESPGHAN – Europe's leading pediatric GI society
• Expert in food allergies and inflammatory bowel diseases
• Specializes in liver transplant pre- and post-treatment
• Extensive training at top Turkish medical institutions

Associate Professor Binnur Simsek specializes in complex gastrointestinal and liver disorders, with subspecialty training from Istanbul University.

• Over 20+ years of experience in gastroenterohepatology
• Expert in hepatic cirrhosis, portal hypertension, and liver cancer
• Member of key societies including Turkish Association for the Study of the Liver
• Focuses on both inflammatory bowel diseases and gastrointestinal malignancies

Prof. Dr. Selami Sozubir has authored 65 scientific publications with over 11,000 reads – a leading voice in pediatric surgery and urology.

• Specializes in pediatric genitourinary reconstructive surgery and congenital abnormalities
• Trained at UT Southwestern Medical Center in Dallas, USA
• Recipient of multiple awards for clinical research
• 20+ years of experience across top Turkish universities and hospitals

Assoc. Prof. Oguzhan Ozturk leads the Gastroenterology Clinic at Biruni University Hospital, specializing in complex gastrointestinal conditions with 15+ years of experience.

• Subspecialized in gastroenterology at Medeniyet University's prestigious Göztepe Training and Research Hospital
• Award-winning researcher recognized by Turkish Gastroenterology Association
• Member of Turkish Society of Gastroenterology and Gastrointestinal Endoscopy Society
• Former Chief Resident at Ümraniye Training and Research Hospital

Prof. Levent Demirturk brings 30+ years of gastroenterology expertise, specializing in complex pancreatic and gastric conditions at Emsey Hospital.

• Former Chief of Gastroenterology at GATA Haydarpaşa
• Member of Turkey's Higher Science Council
• Specializes in both acute and chronic pancreatitis cases
• Extensive experience in gastric polyps removal

Specializing in liver diseases and liver transplantation, Dr. Binnursimsek brings deep expertise to complex hepatology cases at Liv Hospital Vadistanbul.

• 15+ years focusing on liver cirrhosis and portal hypertension
• Trained at Istanbul University – Turkey's top medical school
• Expert in Fibroscan and videocapsule endoscopy procedures
• Member of multiple professional societies including the Turkish Association for the Study of the Liver

Dr. Karli specializes in pediatric gastroenterology, focusing on newborns and children, with extensive training and research in childhood nutrition and diseases.

• Expert in breastfeeding and nutrition consultancy for infants
• Specialized in newborn care and follow-up procedures
• Trained at top institutions including Istanbul University and Şişli Hamidiye Etfal
• Presented research on pediatric conditions like acute pancreatitis

Specializes in inflammatory bowel diseases and motility disorders at Liv Hospital Ulus – Dr. Aslan brings extensive gastroenterology expertise.

• Over 15 years of gastroenterology practice
• Published multiple studies on Crohn's disease and liver conditions
• Trained at Istanbul University Cerrahpasa School of Medicine
• Active in research on gastrointestinal disorders

Areas of Interests

• General Gastrointestinal Diseases
• Endoscopic procedures (gastroscopy, colonoscopy, enteroscopy, capsule endoscopy)
• Interventional endoscopy
• ERCP
• Endoscopic ultrasonography (EUS)
• Cholangioscopy
• Diseases of the biliary system and pancreas

Education:
 

• 1990 -1996 Ankara University Faculty of Medicine
• 1997 - 2001 Ankara Numune Training and Research Hospital Internal Medicine Residency
• 2001 - 2003 Turkey High Specialization Training and Research Hospital, Gastroenterology Subspecialization
• 2010 - 2010 State University of New York, USA, Department of Gastroenterology, EUS training program
   

Experience:
 

• June 2024 LIV Hospital Ulus Hospital
• 2018 - 2024 Florence Nightingale Hospitals, Gastroenterology Clinic
• 2013 - 2018 Memorial Ataşehir Hospital, Gastroenterology Clinic
• 2008 - 2013 Gaziantep University Faculty of Medicine, Department of Gastroenterology, Assoc. Prof. Dr.
• 2008 - 2008 Medicalpark Gaziantep Hospital Gastroenterology Clinic
• 2004 - 2008 Gaziantep State Hospital Gastroenterology Clinic, Endoscopy Unit Founding Physician

Publications

• Arhan M, Koklu S, Koksal AS, Yolcu OF, Koruk S, Koruk I, Kayacetin E. Alverine citrate induced acute hepatitis. World J Gastroenterol 2004; 10(15): 2303-4  ISSN: 1007-9327
• Parlak E, Cicek B, Koruk I, Disibeyaz S, Sahin B. Successful prevention of stent migration caused by placement of a second stent. Endoscopy. 2005; 37(4): 404. ISSN: 0013-726X
• Koruk I, Ozturk ZA, Köklü S, Koruk S, Ozdede S. Port-site metastasis after laparoscopic cholecystectomy. Acta Gastroenterol Belg. 2008; 71(2): 283-4      ISSN:0001-5644
• Koruk I, Parlak E, Secilmis S, Akdogan M, Koklu S.  Endoscopic sphincteroplasty with large balloon dilatation for extraction of difficult common bile duct stones. Dig Dis Sci. 2008 Jun;53(6):1737-8. ISSN: 0163-2116
• Ozkaya M, Yuzbasioglu MF, Koruk I, Cakal E, Sahin M, Cakal B. Preoperative detection of insulinomas: two case reports. Cases J. 2008 Nov 29; 1(1): 362  ISSN: 1757-1626
• Yılmaz Ö, Koruk İ, Çayır K, Koruk M, Yılmaz A. Usefullness of serum insulin-like growth factor (IGF-1) and insulin-like growth factor binding protein-3 (IGFBP-3) for colorectal cancer diagnosis. Int J Hematol Oncol 2009; 19(1): 23-27  ISSN: 1306-133X
• Savaş C, Koruk İ, Koruk M, Kadayıfçı A, Sarı İ. Association of prion protein with the stage of liver fibrosis in chronic viral hepatitis. Trakya Univ Tip Fak Derg. 2010; 27(4): 373-7. DOI: 10.5174/tutfd.2009.02284.1 ISSN: 1301-3149
• Buyukberber M, Koruk I, Cıkman O, Koruk M, Kucukoglu ME, Sakman A, Demir O, Sahinoz S. Serum cystatin C measurement in differential diagnosis of intra and extrahepatic cholestatic diseases. Ann Hepatol 2010; 9(1): 58-62  ISSN: 1665-2681
• Gulsen MT, Koruk I, Dogan M, Beyazit Y. Diagnostic accuracy of cascade stomach by upper gastrointestinal endoscopy in patients with obscure symptoms: A multi-center prospective trial. Clin Res Hepatol Gastroenterol. 2011; 35: 489-93. DOI: 10.1016/j.clinre.2011.03.004         ISSN: 2210-7401
• Koruk I, Aydın U, Koruk S, Aydınlı M. A newly defined biliary anatomic variation. Turk J Gastroenterol 2011; April 22(2): 232-3  DOI:10.4318/ tjg.2011.0204  ISSN: 1300-4948
• Koruk İ, Özdemir H, Aydınlı M, Tarakçıoğlu M, Koruk M. The relation between serum Cytokeratin 18 and acute pancreatitis: Can it be a serological predictive marker?. Turk J Gastroenterol. 2011. DOI:10.4318/tjg.2011.0256 ISSN: 1300-4948
• Aydinli M, Koruk I, Koruk S, Aydin U, Kadayifci A. Intraoperative cholangioscopy with an ultrathin endoscope for hemobilia. Endoscopy 2011;43 Suppl 2 UCTN:E410. doi: 10.1055/s-0030-1256897. Epub 2012 Jan 24
• Aydinli M, Koruk I, Dag MS, Savas MC, Kadayifci A. Ultrathin endoscopy for gastrointestinal strictures. Digestive Endoscopy 2012 May;24(3):150-3. doi: 10.1111/j.1443-1661.2011.01206.x. Epub 2011 Oct 27                 ISSN: 0915-5635
• Yılmaz Ö, Koruk İ, Onbaş O, Ozgokce M. Portal venous gas resulting from enteritis in a case with portal hypertension: Case report. Türkiye Klinikleri Tıp Bilimleri Dergisi. 2012; 32 (4): 1195-8 ISSN: 1300-0292
• Demiryürek S, Koruk I, Bozdag Z, Ozkara E, Kaplan DS, Oztuzcu S, Cetinkaya A, Alasehirli B, Demiryürek AT. Investigation of the esophageal Rho-kinase expression in patients with Barrett's esophagus. Ultrastruct Pathol. 2013 Aug;37(4):284-9. doi: 10.3109/01913123.2013.797064        ISSN: 0191-3123
• Dag MS, Ozturk ZA, Koruk I, Kısacık B, Gerenli O, Aydınlı M, Kadayıfcı A. Intestinal Behcet's disease with severe pulmonary arterial involvement mimicking ulcerative colitis. Asian Biomedicine. 2013; 7(5): 715-8      ISSN: 1905-7415
• Dağ MS, Aydınlı M, Oztürk ZA, Türkbeyler IH, Koruk I, Savaş MC, Koruk M, Kadayıfçı A. Drug- and herb-induced liver injury: a case series from a single center. Turk J Gastroenterol. 2014 Feb;25(1):41-5. doi: 10.5152/tjg.2014.4486ISSN: 1300-4948
• Kadayifci A, Atar M, Parlar S, Balkan A, Koruk I, Koruk M. Transnasal endoscopy is preferred by transoral endoscopy experienced patients. J Gastrointestin Liver Dis. 2014 Mar;23(1):27-31     ISSN: 1841-8724
• Alasehirli B, Oğuz E, Oksuzler E, Koruk I, Oztuzcu S, Ozkara E, Karakok M, Erbagcı AB, Demiryurek AT. Investigation of intercellular adhesion molecules (ICAMs) gene expressions in patients with Barrett's esophagus. Tumour Biol. 2014 May;35(5):4907-12. doi: 10.1007/s13277-014-1644-3      ISSN: 1010-4283
• Dag M, Özturk Z, Aydınlı M, Koruk I, Kadayfçı A. Postpartum hepatotoxicity due to herbal medicine Teucrium polium. Ann Saudi Med. 2014 Nov-Dec;34(6):541-3. doi: 10.5144/0256-4947.2014.541        ISSN: 0256-4947
• Tahtacı M, İbiş M, Koruk İ, Parlak E. Endoscopic removal of fractured basket traction wire. Turk J Gastroenterol. 2014 Dec;25 Suppl 1:324-5. doi: 10.5152/tjg.2014.6582            ISSN: 1300-4948
• Dağ MS, Koruk İ, Aydınlı M, Çam H, Öztürk ZA, Kadayıfçı A. An unusual cause of esophageal ulcer; sertraline hydrochloride. Turk J Gastroenterol. 2014 Dec;25 Suppl 1:250-1. doi: 10.5152/tjg.2014.4646  ISSN: 1300-4948
• Balkan A, Yılmaz N, Balkan Y, Koruk İ, Örkmez M, Aydınlı M, Koruk M. Relationship between liver injury and serum cytokeratin 18 levels in asymptomatic hepatitis B virus carriers and in patients with chronic hepatitis B infection. Arab Journal of Gastroenterology. 2017; 18: 98–103                   ISSN: 1687-1979
• Koruk İ. How to manage difficult cannulation in ERCP. Gastroenterology and Hepatology: Open Access. 2017, 6(3): 00194. DOI: 10.15406/ghoa.2017.06.00194 ISSN: 2373-6372
• Valori R, Cortas G, de Lange T, Balfaqih OS, de Pater M, Eisendrath P, Falt P, Koruk I, et al.  Performance measures for endoscopy services: A European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative.  Endoscopy 2018; 50: 1186–1204   ISSN 0013-726X
• Koruk S, Koruk I, Mizrak A. A, Bilgi M, Gul R, Bozgeyik S. Dexmedetomidine or midazolam in combination with propofol for sedation in endoscopic retrograde cholangiopancreatography: a randomized double blind prospective study. Videosurgery Miniinv. 2020; 15(3): 526-32 doi.org/10.5114/wiitm.2020.95066

Dr Ahmet Cem Dural specializes in minimally invasive endocrine surgeries, with advanced training at Cleveland Clinic and Karolinska University.

• Board-certified in general surgery with over 15 years of experience
• Expert in laparoscopic and robotic surgical techniques
• Member of prestigious societies like AAES and SAGES
• Trained in top international institutions including Cleveland Clinic
• Focuses on thyroid, parathyroid, and adrenal gland surgeries