Crohn's Disease Doctors Worldwide

Dr. Suleyman Guray is a gastroenterologist at Memorial Göztepe Hospital in Istanbul. He specializes in endoscopy and internal medicine. He completed training in endoscopic interventions at CHA Bundang Medical Center. Dr. Guray belongs to the Turkish Society of Gastroenterology.

• Participated in the Manchester Advanced Endoscopy Symposium.
• Expertise includes gastroscopy, colonoscopy, and ERCP.
• Is a member of the Gastrointestinal Endoscopy Society.
• Works at Memorial Göztepe Hospital, a 25-year-old facility with 19 operating rooms.

Professor Schenker leads the Department of Surgery at the Academic Hospital Solingen, focusing on minimally invasive and gastrointestinal surgeries with modern techniques.

• Specializes in gastrointestinal oncology and minimally invasive surgery
• Chief Surgeon of the first certified colorectal cancer center in Germany
• Expert in pancreatic surgery and transplantation
• Active researcher and lecturer in surgical methods

1,100+ procedures performed – Dr. Ozlem Ozer Chakir specializes in gastroenterology at Istanbul Florence Nightingale Hospital.

• 12 years of experience in gastroenterology
• Trained in advanced endoscopy in Seoul, Korea
• Awarded Rising Star at Digestive Disease Symposium
• Member of European Society of Gastrointestinal Endoscopy

Dr. Ron Yulia is a senior specialist in Inflammatory Bowel Diseases with over 26 years of experience at Sourasky Medical Center (Ichilov).

• She has performed 1,100+ gastroenterological treatments
• Her area of interest specifically includes Crohn's disease
• She combines medical practice with research on modern biopharmaceuticals
• Author of 85 scientific papers on gastrointestinal conditions
• Member of the Israeli Gastroenterology Community

A top gastroenterologist and hematologist with over 61 years of experience, leading the Liver Unit at Sourasky (Ichilov) Medical Center.

• Subspecializes in treating all liver pathologies, including autoimmune and genetic diseases
• Author of over 60 publications and 100 conference reports on liver disease
• Member of the European Association for the Study of the Liver (EASL)
• Also holds membership in the American Gastroenterological Association
• Trained in gastroenterology at Hebrew University Hadassah Medical School

Dr. Yasar Tuna specializes in gastroenterology with a focus on Crohn's disease at Medical Park Antalya Hospital Complex.

• Ph.D. in Gastroenterology from Akdeniz University
• Over 29 years of experience in gastroenterology
• Works at the Organ Transplant Center, handling complex cases
• Member of the Gastroenterology Department at Akdeniz University

Professor of Pediatrics and Pediatric Gastroenterology specialist with over 32 years of experience, focusing on children with Crohn’s disease.

• Chair of the Department of Pediatrics at Yeditepe University
• Subspecialty training in pediatric gastroenterology at Dokuz Eylül University
• Published research on recurrent diarrhea and pediatric nutrition
• Currently practices at Ataşehir Florence Nightingale Hospital

Dr. Shencan Acar specializes in inflammatory bowel diseases with extensive academic and clinical experience in Crohn's disease at Istanbul Florence Nightingale Hospital.

• Holds a subspecialty in Gastroenterology from Sakarya University
• Authored 20+ peer-reviewed articles on GI conditions, including IBD
• Head of Department at Giresun University Faculty of Medicine
• Expertise in endoscopic interventions for GI conditions
• Assistant professor at multiple prestigious universities in Istanbul

Dr. Erwin Santo is a top-rated gastroenterologist and co-founder of the European Society of Gastrointestinal Endoscopy. He heads the Gastroenterological Department at Sourasky Medical Center.

• Expert in diagnostics and treatment of gastric and liver diseases
• Pioneer in using interventional ultrasound in Israel
• Member of the American Gastroenterological Association and other prestigious organizations
• Over 37 years of experience in gastroenterology

Professor Zamir Halperin brings extensive expertise in inflammatory bowel diseases, with leadership roles at Israel's top gastroenterology institutions.

• Over 42 years specializing in Crohn's disease and other gastrointestinal conditions
• Former Director of the Institute of Gastrointestinal and Liver Diseases at Tel Aviv Medical Center
• Chairman of the Israeli Association of Gastroenterologists
• Trained at Cleveland Clinic and Royal Free Hospital
• Professor at Tel Aviv University's Sackler School of Medicine

Over 35 years as an abdominal surgeon, Dr. Greenberg leads the Colorectal Surgery Department at Sourasky Medical Center.

• Specializes in both open and minimally invasive procedures
• Expert in complex Whipple surgery
• Heads a dedicated department for colorectal conditions

Dr. Nitzan is a senior physician and director of the Inflammatory Bowel Diseases Department at Tel Aviv Medical Center, a leading center for Crohn's disease care.

• Over 80 professional publications on gastroenterology topics
• Completed a specialized 3-year fellowship in IBD and immunology at the University of North Carolina, USA
• Director of the unique Bacteriotherapies Clinic, focusing on advanced microbiome treatments
• Senior lecturer at Tel Aviv University's medical school
• Active member of the European Crohn's and Colitis Organization (ECCO)

Professor Rafael Bruck is the Chief Gastroenterologist at Tel Aviv Sourasky Medical Center – a top hospital – and has over 47 years of experience.

• Specializes in treating acute and chronic intestinal diseases like Crohn's
• Expert in hepatology and complex liver and biliary tract issues
• Uses the latest medical protocols to manage challenging cases
• Member of the Israeli Association of Gastroenterology and the American Medical Association
• Treats patients at the Wolfson Medical Center as well

Specializes in pediatric inflammatory bowel diseases with expertise in endoscopic procedures for children at Sourasky Medical Center.

• Board-certified in pediatric gastroenterology
• Member of European Crohn's and Colitis Organisation
• Trained at Tel Aviv University's Sackler Faculty of Medicine
• Lecturer at Tel Aviv University since 2012

Dr. Arzu Guliyeva combines 24 years of gastroenterology experience with specialized training in inflammatory bowel diseases from Ege University.

• Specializes in Crohn's disease and ulcerative colitis
• Trained extensively in bioregulatory medicine and homotoxicology
• Completed advanced coursework at Sisli Etfal Hospital and Ege University
• Focused on both conventional and integrative treatment approaches

Dr. Viktor Alexander Krol heads the Gastroenterology Department at St. Martinus-Krankenhaus Düsseldorf, specializing in advanced treatments for Crohn's disease.

• Chief of Gastroenterology and Internal Medicine with extensive experience
• Leads a certified Obesity Treatment Center with surgical and endoscopic options
• Uses the latest diagnostic and treatment methods for gastrointestinal diseases
• Provides a comprehensive approach to internal medicine, including cardiology and diabetology

Specializes in inflammatory bowel diseases like Crohn's at Medicalpoint International Hospital, with extensive training in gastroenterology.

• 14 years of experience in gastroenterology
• Trained at Dokuz Eylül University and Korea University
• Expert in endoscopic treatments for digestive diseases
• Works at a leading international hospital

Dr. Çelik specializes in complex digestive disorders, with advanced training in gastroenterology from Ege University. He performs cutting-edge endoscopic procedures for Crohn's disease at Medicalpoint International Hospital.

• 16 years of experience treating digestive and liver diseases
• Expert in endoscopic mucosal resection (EMR) and ERCP procedures
• Member of Turkish Gastroenterology Association's ERCP working group
• Associate Professor at Bakırçay University Çiğli Training and Research Hospital

Dr. Cheon Wonseok is Head of Gastroenterology at Na-Eun Hospital. He treats gastrointestinal disorders. He performs upper endoscopy, colonoscopy, polypectomy, and ESD. He manages gastric and esophageal cancer and Helicobacter pylori infection. He also treats liver disease and inflammatory bowel disease, including Crohn’s disease and ulcerative colitis. He offers small-bowel capsule endoscopy.

Accreditations: Board-certified specialist in gastrointestinal endoscopy. Lifetime member, Korean Society of Gastrointestinal Endoscopy. Full member, Korean Association of Internal Medicine.

Training: Kyung Hee University College of Medicine. Internship, Kyung Hee University Medical Center. Residency in internal medicine, Hallym University Sacred Heart Hospital. Clinical fellowship in gastroenterology, Chung-Ang University Hospital.