Page 9 - Best gastroenterologists: TOP 202 doctors

Dr. Binnur Simsek is a gastroenterology specialist. She has experience in liver cirrhosis, portal hypertension, hepatocellular carcinoma, liver transplantation, and viral hepatitis (B, C, Delta). She also treats alcoholic and non-alcoholic fatty liver disease, peptic ulcers, gastrointestinal bleeding, and inflammatory bowel diseases such as ulcerative colitis and Crohn’s colitis.

She completed her medical and gastroenterology training at Istanbul University Faculty of Medicine. Dr. Simsek has worked at Istanbul University, Sanlıurfa Education and Research Hospital, Liv Hospital, and Istinye University. She is a member of the Turkish Association for the Study of the Liver and the Turkish Society of Gastroenterology.

Pediatric and adolescent medicine, gastroenterology, hepatology, travel medicine

Gastroenterologist

Dr. Martin Claßen is a highly experienced pediatric gastroenterologist, specializing in functional disorders and inflammatory bowel disease in children and adolescents. He holds a degree in general medicine from the Heinrich-Heine-Universität Düsseldorf, a specialty in pediatrics from the University Children's Hospital of Essen and a specialty in gastroenterology in children from the Children’s Hospital at the University Hospital Frankfurt. He is a member of the European Society for Paediatric Gastroenterology Hepatology and Nutrition, the German Society of Pediatrics and Adolescent Medicine and the German Society of Ultrasound in Medicine.

Dr. Christian Mölleken is a Senior Physician in the Department of Gastroenterology and Hepatology with specialist medical specializations and a patent in Biomarkers for hepatic fibrosis. He is a member of two German societies.

Dr. Erdem Koçak is a gastroenterologist with international training. He is certified in advanced endoscopic and bariatric procedures from Johns Hopkins University (USA) and Hallym University (South Korea). Dr. Koçak is one of the few Turkish specialists with global accreditation in advanced endoscopic techniques.

He is known for minimally invasive treatments of early-stage gastrointestinal tumors. Dr. Koçak provides non-surgical options for esophageal, gastric, and colorectal cancers. He is also a pioneer in non-surgical obesity treatments, such as gastric balloon and stomach Botox procedures.

Dr. Koçak has published over 100 international scientific articles and contributed to three book chapters. He has presented at more than 100 medical congresses. He is recognized as a leading academic in his field. Dr. Koçak is trained in both internal medicine and gastroenterology. He works as a chief physician and specialist in major hospitals across Turkey.

He is a member of five respected medical associations, including the Turkish Society of Gastroenterology and TSGE. This ensures he stays updated with the latest medical advances.

Prof. Dr. Adil Baykan is a leading general and oncological surgeon in Turkey. He has over 28 years of clinical experience. He specializes in colorectal, endoscopic, and laparoscopic surgeries. He also treats thyroid and breast diseases.

Dr. Baykan has published several articles on colon cancer in national and international journals. He completed advanced training at St. Mark’s Hospital in London, the University of Minnesota, and the Mayo Clinic in the USA. He holds important academic and surgical roles at top hospitals in Turkey.

Dr. Levent Demirturk is a gastroenterologist with over 40 years of experience. He graduated from Hacettepe University Faculty of Medicine in 1982. He completed his Internal Medicine training at GATA in 1989. He then specialized in Gastroenterology in 1992.

Dr. Demirturk has held important academic roles, including Professor and Ward Chief at GATA Haydarpaşa. He was also a member of the Higher Science Council. He has made valuable contributions to clinical practice and medical education. He has led teams and managed cases at major hospitals such as Emsey and Hisar.

Dr. Olga Krast is the Chief Executive of BIOAGE Clinic. She is known for her skills in Anti-Aging Medicine, Beauty Therapy, Non-Surgical Facial Aesthetics, and Psychotherapy. Under her leadership, BIOAGE Clinic has become a leader in anti-aging treatments. She has treated over 5,000 patients, with a satisfaction rate of more than 97%.

Dr. Krast holds several international accreditations in aesthetic medicine and psychotherapy. She often attends global conferences to stay updated in her field. Her work in non-surgical facial rejuvenation has improved patient care and safety. She is widely recognized as an expert in her specialty.

Gastroenterologist

Professor Fred Konikoff is a recognized expert in Israel on diseases of the liver, gastrointestinal tract and biliary tract and invasive endoscopy.

Head of the Gastroenterology Center