Barrett's Esophagus Doctors Abroad — Page 2

Dr. Zulfikar Polat is a gastroenterology and internal medicine specialist. He trained at Ankara Gülhane Military Medical Academy, where he completed his specialty and became an Associate Professor. He is a Professor at İstanbul Aydın University. His postgraduate experience includes Ankara Gülhane Military Medical Academy and İstanbul Aydın University. He also worked at Anadolu Medical Center, affiliated with Johns Hopkins Medicine (USA).

Clinical focus includes gastroenterology, hepato-pancreatology, inflammatory intestinal diseases, and diagnostic and interventional endoscopic procedures. Professional memberships include the Turkish Gastroenterology Association (TGD), Turkish Endoscopy Society, TÜRK EUS, ESGE, EASL, and AASLD. He has 45 national and international publications.

Associate Professor Ozlem Ozer Chakir is a highly awarded gastroenterologist at Istanbul Florence Nightingale Hospital with a specialised qualification in advanced endoscopy from Seoul.

• Holds an Advanced Endoscopy Certificate – focusing on complex internal imaging and tissue repair
• Uses therapeutic endoscopy to treat GERD and related oesophageal changes without open surgery
• Recognised as a 'Rising Star' at the 10th Digestive Disease and Endoscopy Symposium
• Member of the European Society of Gastrointestinal Endoscopy and the Turkish Society of Gastroenterology
• Published 30+ papers and book chapters on gastroenterological treatments and outcomes

Pediatrician, Pediatric Gastroenterology and Nutrition Specialist

Education

Yeditepe University School of Medicine

Professor of Pediatrics (Chair of the Department)

2004 - 2007

Dokuz Eylül University School of Medicine

Pediatric Gastroenterology Sub-specialty

1995 – 1998

Hacettepe University School of Medicine

Pediatrics Instructor

1985 - 1987

Professional Experience

Ataşehir Florence Nightingale Hospital

Pediatrician, Pediatric Gastroenterology

2017 – Present

Kadıköy Şifa Ataşehir Hospital

Pediatric Gastroenterology and Nutrition

2013 – 2017 

Dokuz Eylül University School of Medicine

Professor of Pediatrics

1994 – 2004

Publications

Cevik N, Buyukgebiz B. Interaction between human blood group (ABO) substances and enteropathogenic

bacterial agents. Turk J Pediatr. 1987. Link

Buyukgebiz B, Ozalp I, Oran O. Investigation of serum vitamin A levels of children who had a history of

recurrent diarrhoea. J Trop Pediatrics. 1990. Link

Languages

Turkish: Native

English: Advanced

Assistant Professor Shencan Acar is a gastroenterology specialist at Istanbul Florence Nightingale Hospital who focuses on managing complex disorders of the food pipe.

• Specialises in endoscopic procedures to monitor and treat changes in the oesophageal lining
• Authored over 20 international peer-reviewed articles on gastrointestinal bleeding and rare internal conditions
• Former Head of Department at Giresun University Faculty of Medicine
• Expertise includes diagnosing aortoesophageal fistulas and managing gastrointestinal complications in diabetic patients
• Provides subspecialist care for inflammatory bowel disease and complex liver disorders

Associate Professor Yilmaz Bilgic is a specialist gastroenterologist who completed intensive training in advanced endoscopy at South Korea's renowned Anam Hospital.

• Specialises in endoscopic procedures to monitor and treat changes in the oesophageal lining
• Completed a specialised ERCP course at the Olympus Training Centre in Hamburg
• Served as Assistant Chief Physician at Turgut Ozal Medical Centre
• Active researcher with a focus on liver regeneration and internal medicine outcomes

Dr. Cheon Won Seok is the Director of the Department of Gastroenterology at Naeun Hospital. His expertise includes gastrointestinal diseases; upper gastrointestinal endoscopy and colonoscopy; polypectomy; ESD (Endoscopic Submucosal Dissection); small-bowel capsule endoscopy; digestive disorders; gastric and esophageal cancer; Helicobacter pylori infection; liver diseases; and inflammatory bowel disease, including Crohn’s disease and ulcerative colitis.

He graduated from Kyung Hee University College of Medicine. He completed his internship at Kyung Hee Medical Center and his internal medicine residency at Hallym University Sacred Heart Hospital. He later served as a Clinical Instructor in Gastroenterology at Chung-Ang University Hospital. He is a full member of the Korean Association of Internal Medicine and a life member of the Korean Society of Gastrointestinal Endoscopy. He is also a board-certified subspecialist in gastrointestinal endoscopy and serves as a medical advisor to KBS, MBC, SBS, JTBC, and MBN.

Professor Yasar Tuna is a lead specialist at the Medical Park Antalya Organ Transplant Centre with a doctorate in gastroenterology.

• Specialises in diagnostic and therapeutic endoscopy to manage changes in the oesophageal lining
• Former academic at Akdeniz University Faculty of Medicine – one of Turkey's top research institutions
• Focuses on internal medicine and gastroenterology for complex digestive tract conditions
• Experienced in high-volume clinical settings at major national training and research hospitals