Best Gastroenterology Doctors Worldwide — TOP 219

900+ advanced endoscopic procedures performed – Dr. Akar specializes in minimally invasive techniques like POEM and ESD at Hisar Hospital Intercontinental.

• 22 years of experience of experience in gastroenterology and internal medicine
• Expert in ERCP for bile duct treatments and ESD for early-stage cancers
• Published 19 international papers on gastrointestinal treatments
• Award-winning researcher with multiple honors for presentations

The doctor has extensive experience in ophthalmology, specializing in treatments and surgeries for strabismus, ocular aesthetics, amblyopia, cataracts, and retinal diseases. Additionally, the doctor is proficient in pediatric eye health and conducts comprehensive general eye examinations.

Graduating from the Istanbul Faculty of Medicine, the doctor completed specialization at Beyoğlu Eye Training and Research Hospital. The doctor is a member of the Turkish Medical Association, Turkish Ophthalmology Association, and the European Society of Cataract and Refractive Surgeons.

One of few bariatric surgeons in Mexico certified by the American Society for Metabolic and Bariatric Surgery (ASMBS) – Dr. Pliego specializes in obesity-related conditions and surgical complications.

• 10 years of experience of experience in bariatric and metabolic surgery
• Certified by the Mexican Board of Obesity Surgery and the Mexican College of General Surgery
• Provides tailored solutions for gastroesophageal reflux and reflux-related esophagitis
• Focuses on personalized care with a strong emphasis on patient communication

Dr. Vafi Atalay is an experienced oncological and general surgeon with 17 years in the field. He specializes in pancreatic, colon, rectal, and liver surgeries. He also performs advanced endoscopic procedures. Dr. Atalay has published 31 articles in national and international journals, making valuable contributions to medical literature.

He received the first prize at the 20th Congress Research Paper Competition. He also won the Best Research Award at the 5th Surgeon Research Congress. Dr. Atalay is a member of TSS, the Palestinian Medical Association, and IOA. His active involvement in these organizations shows his dedication to professional growth and surgical excellence.

Prof. Dr. Engin Tutar specializes in Pediatric Gastroenterology, Hepatology, and Nutrition with 38 years of experience of subspecialty experience at Hisar Hospital Intercontinental.

• Former head of Pediatric Gastroenterology at Marmara University – Turkey's top program
• Expert in diagnostic and therapeutic gastrointestinal endoscopy for children
• Specializes in complex pediatric cases like inflammatory bowel disease and H. pylori gastritis
• Over 50 presentations at national and international congresses

Dr. A. Melih Ozel specializes in pancreatic disorders at Anadolu Medical Center, a major multi-specialty hospital.

• Focuses on the diagnosis and management of pancreatitis
• Provides comprehensive care for complex digestive conditions
• Works at a leading facility with integrated care options

Expert in colorectal surgery with 150+ international publications – Dr. Aytac combines US training at Cleveland Clinic with leadership at Memorial Healthcare Group.

• Fellowship-trained in colorectal surgery at Cleveland Clinic
• Specializes in minimally invasive robotic and laparoscopic techniques
• Focuses on inflammatory bowel diseases like Crohn's and ulcerative colitis
• Recognized with multiple national and international awards
• Professor of Surgery at Memorial Bahçelievler Hospital

Dr. Murat Akkus is a Professor of Pediatric Gastroenterology based in Istanbul. He practices at Memorial Bahçelievler (2019–present) and Memorial Ataşehir (2018–present). He previously led the Division of Pediatric Gastroenterology, Hepatology and Nutrition and the Department of Pediatrics at İnönü University. Before that, he headed Pediatric Gastroenterology at Atatürk University.

He has 174 international and 73 national publications. He is the editor of 7 books. He has written 3 international and 25 national book chapters. He completed a fellowship in Pediatric Gastroenterology and Nutrition at Ege University (1996–1998). In 2011, he was a visiting scholar at the Children’s Hospital of Pittsburgh. He received İnönü University Outstanding Achievement Awards.

Prof. Pfaffenbach heads the Department of Gastroenterology at Academic Hospital Solingen, with 34 years of experience specializing in complex gastrointestinal conditions.

• Author of 130+ publications on gastroenterology
• Specializes in inflammatory diseases and malignant tumors
• Develops therapeutic diets as part of treatment plans
• Member of top European gastroenterology societies

Head of Internal Medicine at Centro Médico Teknon with specialized nephrology training from Barcelona's top hospitals.

• Specialized in nephrology at Hospital Clinic and Hospital Provincial de Barcelona
• Member of Spanish Society of Nephrology and hypertension societies
• Former transplant specialist at Hospital Clínic de Barcelona
• Doctoral dissertation focused on nephrology

Prof. Aydin specializes in complex gastroenterology surgeries with fellowship training from Türkiye High Specialization Hospital.

• Over 37 years of experience of experience in general surgery
• Professor at İnönü University, ensuring high academic standards
• Performs advanced surgical interventions for digestive disorders
• Works at Medipol Acibadem District Hospital

Dr. Ohm Sudchumphae combines clinical nutrition and integrative medicine for holistic gastroenterology care at Panacee Hospital Rama2.

• Holds multiple master's degrees in clinical nutrition and integrative medicine
• Specializes in functional gastroenterology with additional training in pediatric food allergies
• Certified by American Board of Nutritional Wellness
• Expertise in IV nutrition and medicinal herbology

Prof. Halil Alis specializes in minimally invasive laparoscopic procedures for gastrointestinal conditions, with over 34 years of experience of experience in complex surgeries.

• Expert in laparoscopic colorectal and bariatric surgeries
• Published extensively on hepatobiliary and pancreatic diseases
• Active member of SAGES, EAES, and IFSO
• Trained at Istanbul University School of Medicine
• Performs emergency surgeries with minimally invasive techniques

Prof. Nadir Arber heads Israel's only Integrated Cancer Prevention Center, focusing on stopping GI cancers before they start. He has authored over 300 scientific papers on gastrointestinal health.

• 44 years of experience specializing in prevention and early detection of GI cancers
• Leads the Cancer Prevention Center at Sourasky Medical Center
• Research fellowship at NewYork-Presbyterian Center
• Member of the American Gastroenterological Association and European Society of Digestive Oncology

Prof. Mehmet Guler brings 34 years of experience of surgical expertise, specializing in complex gastrointestinal conditions at Medical Park Antalya Hospital Complex.

• Holds professorship at Istanbul Aydın University – leading academic credentials
• Specializes in advanced laparoscopic techniques for gallbladder surgery
• Trained at Turkey's top institutions including Hacettepe University
• Additional master's in Health Law for patient-centered care

General and Digestive System Surgeon. Focus on minimally invasive colorectal, proctologic, and abdominal wall surgery. Associate Head, Infanta Elena University Hospital (2021–). Associate Surgeon, Fundación Jiménez Díaz (2013–).

Accreditations: PhD in Surgery, summa cum laude (UAM). Certified in robotic surgery (Da Vinci X/Xi/5). Advanced training in laparoscopic general surgery (IRCAD, Strasbourg). Specialist in General and Digestive Surgery (Fundación Jiménez Díaz).

Achievements: Researcher (2013–). Author of a patent for an abdominal wall prosthetic implantation system (2021). Co‑author of the Rectal Obturator utility model (2021). Peer reviewer, International Journal of Surgery Case Reports (2024–). Thesis tutor (2023–). Publications in Cirugía Española, Experimental Biology and Medicine, Histology and Histopathology, and The American Journal of Surgery. Member of AEC, AECP, and ICOMEM.

Dr. Aghayev brings extensive emergency medicine experience to gastroenterology cases at Liv Bona Dea Hospital.

• Over 16 years of experience in emergency and intensive care
• Specializes in acute gastrointestinal conditions
• Works at Baku's premier international hospital
• Trained in pediatric gastroenterology

3,500+ robotic surgeries performed – Dr. Tvaruzek is a leading certified expert in Da Vinci robotic procedures at St. Zdislava Hospital.

• Heads the Center of Robotic Surgery in the Czech Republic
• Specializes in prostatectomy, transoral surgeries, and bariatric procedures
• Certified by Intuitive Surgical – the makers of Da Vinci robots
• Member of Association of Aesthetic Medicine and Bariatric Surgery

Pichai Kittipanyaworakul, M.D., is an internist. He specializes in gastroenterology and hepatology.

Education: Doctor of Medicine (M.D.), Faculty of Medicine, Chiang Mai University.

Accreditations: Diploma in Internal Medicine, Chulalongkorn Memorial Hospital, Thai Red Cross Society. Diploma in Internal Medicine (Gastroenterology and Hepatology), Faculty of Medicine Ramathibodi Hospital, Mahidol University.