Colonoscopy Doctors Abroad — Page 6

Professor Schoppmann heads the Gastroesophageal Tumor Unit at Vienna General Hospital. He specializes in detecting and treating gastrointestinal polyps during a colonoscopy.

• Heads the Department for Surgical Functional Testing at the Medical University of Vienna
• Published 240+ scientific articles on digestive tract diseases and cancer research
• Serves as General Secretary of the Austrian Society of Surgical Oncology
• Section Editor for the medical journal European Surgery
• Expert in visceral surgery focusing on complex upper digestive system conditions

Specializations

Cancer Surgery

Pancreatic Surgery

Bile Duct Surgery

Bariatric Metabolic Surgery

Oncological Surgery

Breast Surgery

Gastric cancer

Colon cancer

Thyroid Cancer

Obesity Surgery

Diabetes Surgeries

Dr. Jair Bar is a thoracic oncologist and Deputy Director of the Cancer Center at Sheba Medical Center. He specializes in treating advanced non-small cell lung cancer using personalized immunotherapy and targeted treatments. Dr. Bar holds a PhD in Molecular Biology and leads a research lab focused on immunotherapy resistance.

• Chair of the Israel Lung Cancer Group.
• Board-certified in both Medical Oncology and Radiotherapy Oncology.
• Treats patients at Sheba Medical Center, a top-10 globally ranked hospital.
• Uses molecular and genetic profiling to create precise cancer treatment plans.

Dr. Nihat Okcu is a gastroenterologist and gastrointestinal surgeon at Medipol University Pendik Hospital. He specializes in the treatment of complex digestive conditions and liver diseases. Dr. Okcu has published over 20 academic papers on gastric cancer and endoscopic diagnosis. He serves at a hospital with a 95.4% healthcare quality score.

• Performs laparoscopic anti-reflux surgery and small intestine resections.
• Expert in gastric polyps removal and duodenal polyp excision.
• Treats chronic conditions like cirrhosis, Crohn’s disease, and ulcerative colitis.
• Provides diagnostic gastroscopy with biopsy and ultrasound-guided procedures.

Dr. Raanan Berger is the Director of the Cancer Center at Sheba Medical Center. He was listed in Forbes Israel’s “Best Doctors” in 2025. Dr. Berger specializes in genitourinary oncology and radiates complex prostate tumors. He completed a postdoctoral fellowship at the Dana-Farber/Harvard Cancer Institute.

• Heads the clinical research unit focusing on molecular oncology.
• Co-authored over 20 peer-reviewed papers on prostate cancer and BRCA mutations.
• Member of the American Society of Clinical Oncology (ASCO).
• Performs systemic therapy and radiotherapy at a Top-10 globally ranked hospital.

Professor Gerhard Prager leads the obesity clinic at Vienna General Hospital. He uses colonoscopy to evaluate digestive health in metabolic patients.

• Head of the Metabolic Surgery Center at Confraternitaet Private Hospital
• Specialist in gastroenterology and surgery for obesity and diabetes
• President of the European Chapter of the International Federation for the Surgery of Obesity
• Member of the American Society for Metabolic and Bariatric Surgery
• Expert in assesssing gastric ulcers and internal conditions

Dr. Yaacov Lawrence is the Chair of Radiation Oncology at Sheba Medical Center. He specializes in precision radiation therapy and neuro-oncology. Dr. Lawrence pioneered celiac plexus radiosurgery for pancreatic cancer pain management. He holds the FASTRO designation, one of the highest honors in his specialty.

• Leads the Gastrointestinal Cancer Program at Sheba Medical Center.
• Performs stereotactic radiosurgery for brain tumors and nervous system cancers.
• Authored over 280 scientific publications on personalized radiation protocols.
• Completed radiation oncology fellowship training at Thomas Jefferson University.

Dr. Tülin Kendir Koçak is a gastroenterology specialist at Emsey Hospital. She uses advanced screening techniques like colonoscopy to examine the large intestine and rectum.

• Performs chromoendoscopy – uses specialized dyes to better visualize and find abnormal tissues
• Specializes in interventional treatments – including the removal of polyps and foreign bodies
• Internal medicine and gastroenterology specialist trained at major Turkish training and research hospitals
• Treats complex digestive conditions – including Crohn’s disease, cirrhosis, and gastrointestinal bleeding

Dr. Osman Aktas is a general surgeon at Avicenna International Hospital in Istanbul. He completed laparoscopic surgery training in Germany. He specializes in oncological and metabolic surgeries. Dr. Aktas previously served as chief physician at several prominent military hospitals.

• Performs complex cancer surgeries like the Whipple procedure and colorectal resections.
• Treats obesity and diabetes using metabolic surgery techniques.
• Manages gastrointestinal tumors and obstructions through minimally invasive methods.
• Uses laser therapy for modern treatment of anal diseases.

Dr. Siegbert Rossol is a Fellow of the European Board of Gastroenterology. He performs advanced colonoscopy and endoscopic therapies at Nordwest Clinic in Frankfurt.

• Specializes in ESD and EMR to remove intestinal cancer without traditional surgery
• Performs minimally invasive resection of gastrointestinal polyps during endoscopic procedures
• Expertise in inflammatory bowel disease including Crohn's disease and ulcerative colitis
• Recipient of the Alexander von Humboldt Scholarship for his medical contributions
• Member of the American Association for the Study of Liver Diseases

Dr. Jaydeep Palep leads a GI surgery department certified as a center of excellence by the International Excellence Foundation. He performs gastrointestinal screenings including colonoscopy at HCG Manavata Cancer Centre.

• Trained in robotic GI surgery in Italy for higher precision and faster recovery
• Specializes in identifying Crohn's disease and ulcerative colitis during diagnostic procedures
• Maintains a safety record where only 1% of patients experience procedure-related issues
• Recognized internationally for his work in metabolic and gastrointestinal medical research

Dr. Meryem Keceli Basaran is an Associate Professor and pediatric gastroenterologist at Biruni University Hospital. She specializes in digestion, hepatology, and nutrition for children. Dr. Basaran is a member of ESPGHAN, the European authority on pediatric gastroenterology. She manages gastrointestinal food allergies and inflammatory conditions like Crohn’s disease. She works at a TEMOS-accredited university hospital in Istanbul.

• Specializes in care before and after liver transplantation.
• Treats irritable bowel syndrome, celiac disease, and ulcerative colitis.
• Expert in managing chronic diarrhea, malabsorption, and faecal incontinence.
• Performs specialized diagnostic colonoscopies and gastroscopies with biopsy.

Dr. Turkan Ozturk Topcu is a clinical oncologist at Biruni University Hospital in Istanbul. She maintains professional ties with the MD Anderson Cancer Center in the USA. She specializes in the treatment of breast, lung, and gastrointestinal cancers. Dr. Topcu is a member of both ESMO and ASCO.

• Completed a fellowship at the Sunnybrook Odette Cancer Center Breast Clinic in Canada.
• Treats a wide range of conditions including liver, pancreatic, and gynecological cancers.
• Held clinical roles at major institutions like Moffitt Cancer Center in the USA.
• Works at Biruni University Hospital, a TEMOS-accredited facility in Turkey.

The doctor completed specialization training in Radiation Oncology at Marmara University Faculty of Medicine from 2012 to 2016. Prior to this, the doctor completed an undergraduate degree in Medicine, taught in English, at the same institution from 2004 to 2011. The doctor has a strong foundation in medical education, beginning with high school education at Sixteen Numbered Shirvan School in Azerbaijan from 1998 to 2004.

Dr. Murat Ayhan is an associate professor of medical oncology at Liv Hospital Vadistanbul in Istanbul. He specializes in the treatment of breast, lung, and colorectal cancers. Dr. Ayhan is a prolific researcher with over 30 published scientific articles. He focuses on molecular oncology and targeted drug therapies for metastatic conditions.

• Participates in international clinical trials for novel breast and lung cancer treatments.
• Authored several medical book chapters on targeted agents and oncological emergencies.
• Expert in utilizing FDG PET/CT imaging to predict treatment responses in breast cancer.
• Works at a JCI-accredited hospital recognized for colorectal surgery excellence.

Dr. Holovyna Svitlana is a gastroenterologist and nutritionist at Sana Vita in Odesa. She specializes in restoring digestive health and managing metabolic disorders. She treats complex conditions like Crohn's disease, ulcerative colitis, and cirrhosis. Dr. Holovyna combines clinical therapy with evidence-based diet correction for better patient outcomes.

• Member of the European Association for the Study of the Liver (EASL).
• Belongs to the Association of Dietitians and Gastroenterologists of Ukraine.
• Treats gastrointestinal disorders, including gastritis, pancreatitis, and gastric ulcers.
• Performs high-precision diagnostics like gastroscopy with biopsy and colonoscopy.

Dr. Cheon Won Seok is the Director of Gastroenterology at Naeun Hospital in Incheon. He is a recognized medical advisor for major South Korean networks like KBS and MBC. Dr. Cheon is a board-certified subspecialist in gastrointestinal endoscopy. He works at a KOIHA-accredited facility that treats 20,000 patients annually.

• Specializes in endoscopic submucosal dissection (ESD) for gastric and esophageal cancers.
• Treats inflammatory bowel diseases including Crohn’s disease and ulcerative colitis.
• Expert in small-bowel capsule endoscopy and Helicobacter pylori infection management.
• Life member of the Korean Society of Gastrointestinal Endoscopy.

Dr. Abu Shamsiya Rami Nuamanovych is a surgical oncologist and gastrointestinal specialist at Dievo Surgery Center. He serves as a consultant for the World Health Organization regarding laparoscopic procedures. Dr. Nuamanovych has performed thousands of surgeries, including bariatric and complex cancer operations. He is the President of the Association of Arab Doctors of Ukraine.

• Expertise in laparoscopic hernia repair and gallbladder removal.
• Performs bariatric procedures like gastric bypass and sleeve gastrectomy.
• Treats gastrointestinal cancers, including stomach, colon, and rectal tumors.
• Member of the International Federation for the Surgery of Obesity (IFSO).