Colonoscopy Doctors Abroad — Page 5

Dr. Baha Zengel is a general surgeon at Medicalpoint International Hospital. He specializes in oncoplastic breast surgery and thyroid diseases. He holds a doctorate in Basic Oncology from Dokuz Eylül University. Dr. Zengel serves as a founding board member of the Basic Oncology Association. He works at a JCI-accredited facility in İzmir.

• Performs breast-conserving mastectomy and simultaneous reconstructions.
• Expert in ROLL and SNOLL localization techniques for non-palpable lesions.
• Treats patients using laparoscopic cholecystectomy for gallbladder diseases.
• Former board member of the Aegean Region Surgery Association.

Dr. Muhammed Mustafa Atci is an Associate Professor of Medical Oncology at Liv Hospital Topkapı. He specializes in treating colon, breast, gastric, and lung cancers. He previously served as the Education Coordinator at Prof. Dr. Cemil Taşcıoğlu City Hospital. Dr. Atci is a member of the American Society of Clinical Oncology (ASCO).

• Author of 19 peer-reviewed papers on gastrointestinal, thoracic, and endocrine cancers.
• Published studies on survival outcomes for stage IIB colon cancer in the Journal of Chemotherapy.
• Researches prognostic biomarkers using PET/CT scans and metabolic tumor volume.
• Treats complex oncological cases at the university-affiliated İstinye University clinic.

Education

Ondokuz Mayıs University Faculty of Medicine (1991)

KTÜ Faculty of Medicine Farabi Hospital (Specialization.1998)

Istanbul University Çapa Faculty of Medicine (Laparoscopic Surgery Training, 2002)

Istanbul University Çapa Faculty of Medicine (Laparoscopic Antireflux Surgery Training, 2006)

Istanbul University Cerrahpaşa Faculty of Medicine (General Surgery Clinic Advance Laparoscopic Surgery, Laparoscopic Bariatric Surgery, Morbid Obesity and Oncological Cancer Surgery Training, 2010i)

Dr. Liu Shi Xin is the Vice Chairman of the Radiation Oncology Branch of the Chinese Medical Association. He serves as the Discipline Leader of the Oncology Center at Xiamen Humanity Hospital. Dr. Liu specializes in precision radiotherapy for thoracic and abdominal cancers. He is a recipient of the State Council Special Government Allowance for his medical contributions.

• Highly proficient in IMRT, VMAT, and SBRT for lung and esophageal cancers.
• Former President of Jilin Provincial Cancer Hospital.
• Awarded the National Famous Doctor honor for outstanding contributions to oncology.
• Holds leadership roles in the Chinese Anti-Cancer Association particle therapy committee.

Dr. Sanchez Yague is a gastroenterologist at Quirónsalud Marbella in Spain. He was the first professional globally to use the 15-mm AXIOS stent. This device drains pancreatic fluid collections. He pioneered submucosal endoscopic dissection in Spain. Dr. Sanchez Yague also introduced gastroenteroanastomosis with luminal apposition stents to Andalusia.

• Fellow of the American College of Gastroenterology (FACG).
• Fellow of the American Society for Gastrointestinal Endoscopy (FASGE).
• Coauthored European Society of Gastrointestinal Endoscopy guides on chronic pancreatitis.
• Winner of the Top Reviewer Award from the Gastrointestinal Endoscopy Journal.

Dr. Pak Seongjin is a gastroenterologist. He focuses on endoscopy and advanced procedures such as gastroscopy, colonoscopy, polypectomy, and ESD. He also treats digestive and liver diseases, including cirrhosis, pancreatitis, hepatitis, and Helicobacter pylori infection.

He earned his M.D. and M.S. in Internal Medicine from Chung-Ang University. He completed his internal medicine residency and a gastroenterology fellowship at Chung-Ang University Hospital.

He is a clinical professor at Gachon University College of Medicine and Inha University College of Medicine. He is a full member of the Korean Association of Internal Medicine, the Korean Society of Gastrointestinal Endoscopy, the Korean Gastroenterology Association, and the Korean Pancreatobiliary Association.

Dr. Song Hwayeong is a gastroenterologist. Areas of focus include gastrointestinal cancers (stomach and esophageal) and advanced endoscopy (gastroscopy, colonoscopy, ESD, and polypectomy). Dr. Song also treats digestive and liver diseases, including GERD, gastritis, hepatitis, H. pylori infection, and liver disease.

Dr. Song completed a fellowship in Gastroenterology at Inje University Ilsan Paik Hospital. Dr. Song has served as Clinical Professor at Inje, Gachon, and Inha University Colleges of Medicine. Dr. Song is Director of the Gastroenterology Center at Naeun Hospital.

Accreditations: full member of the Korean Association of Internal Medicine, the Korean Society of Gastrointestinal Endoscopy, and the Korean Gastroenterology Association. Doping Committee Member, WKBL.

Selected papers: cryptogenic hepatocellular carcinoma; primary biliary cirrhosis with overlap syndromes; therapy for lamivudine-resistant chronic hepatitis B; and clevudine in HBV-related cirrhosis.

Dr. José Miguel Esteban Lopez-jamar is a pioneer in ecoendoscopy in Spain. He currently heads the Digestive Endoscopy Unit at Hospital Ruber Internacional.

• Specializes in advanced digestive endoscopy for both diagnostic and interventional needs
• Expert in early cancer detection and Barrett’s esophagus screening during colonoscopy
• Former Head of Endoscopic Innovation at Hospital Clínico San Carlos in Madrid
• Completed international clinical training in Amsterdam, Marseille, and Shanghai
• Member of the European Society of Gastrointestinal Endoscopy (ESGE)

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. Park Sundo is a specialist in gastrointestinal and general surgery at Naeun Hospital. His expertise includes colorectal, proctology, breast, thyroid, laparoscopic, biliary, pancreatic, and pediatric surgery.

Key treatments include proctologic surgery, such as hemorrhoidectomy and care for hemorrhoids and anal fistula. He performs laparoscopic surgery for gallstones (cholelithiasis) and appendicitis. His oncology care covers gastric and colorectal cancer. He also performs hernia repair. Breast and thyroid care includes treatment of tumors and Mammotome biopsy. He treats varicose veins and severe burns. Pediatric surgery includes hernia repair and general pediatric procedures.

Prof. Boursi developed predictive models for early colorectal cancer diagnosis. He handles gastrointestinal oncology and colonoscopy screenings at Sheba Medical Center.

• Trained in oncology at MD Anderson Cancer Center and Mayo Clinic
• Completed a gastrointestinal oncology fellowship at the University of Pennsylvania
• Founded the ECOG-ACRIN Microbiome Working Group to study cancer development
• Member of the Israeli Association of Clinical Oncology and Radiotherapy
• Published research in Science journal regarding cancer treatment response

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.

Dr. Arnulf Ferlitsch heads the internal medicine department. He is a multi-award-winning gastroenterologist who provides expert diagnostic colonoscopy services at Döbling Private Hospital.

• Six-time winner of the Best Abstract Award from United European Gastroenterology Week
• Nominated as a national Rising Star in Gastroenterology in 2012
• Specializes in treating complex inflammatory conditions like Crohn's disease and ulcerative colitis
• Completed clinical training at the University of Pennsylvania and UCLA
• Founded the hepatic hemodynamics laboratory at the Medical University of Vienna

Dr. Kim Taegyun is a gastroenterologist. He focuses on pancreatobiliary diseases and cancers, including pancreatitis, pancreatic cysts and cancer, cholecystitis, gallstones (cholelithiasis), and biliary tract cancer. He also performs advanced endoscopy, including ERCP. He treats gastrointestinal tumors, stomach and colon polyps, stomach cancer, and submucosal tumors (SMT).

Education and training: MD, Jeonbuk National University College of Medicine. MS in Medicine, University of Ulsan. Internship, Jeonbuk National University Hospital. Residency in Internal Medicine, Veterans Health Service Medical Center. Fellowships in Gastroenterology, Inje University Haeundae Paik Hospital and Asan Medical Center.

Career: Attending physician and specialist at Gwangju Veterans Hospital and the Veterans Health Service Medical Center.

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. Nurana Guliyeva is a gastroenterologist at the Biological Medicine Integrative Health Center in Baku. She specializes in treating viral hepatitis, cirrhosis, and complex autoimmune liver diseases. Dr. Guliyeva completed an internship in microbiology and infectious diseases at Ege University in Turkey. She focuses on digestive health, including stomach, intestine, and pancreas disorders.

• Trained at Ege University and Hacettepe Hospital in Turkey.
• Treats viral hepatitis A, B, C, and D alongside drug-induced liver poisoning.
• Performs specialized procedures like colon hydrotherapy and gastric polyp removal.
• Works at an integrative health center treating over 84,000 patients annually.