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Best gastroenterologists: TOP 495 doctors

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Content meets the Bookimed Editorial Policy and is medically reviewed by
Fahad Mawlood - General practitioner. Winner of 4 scientific awards. Served in Western Asia. Former Team Leader of a medical team supporting Arabic-speaking patients. Now responsible for data processing and medical content accuracy.
Bentov Amir
Bentov Amir
Gastroenterologist
20 years of experience
4.4
147 reviews
Israel, Tel Aviv
Sourasky Medical Center (Ichilov)

Bentov Amir

Gastroenterologist
20 years of experience

Dr. Bentov Amir is a pediatrician and pediatric gastroenterologist with over 22 years of clinical experience. He specializes in treating pediatric inflammatory bowel diseases, celiac disease, and eosinophilic esophagitis. He is also skilled in performing endoscopic procedures in children.

Dr. Amir earned his medical degree at Tel Aviv University. He completed his training in pediatrics and pediatric gastroenterology at Dana-Dwek Children's Hospital. He lectures at Tel Aviv University and is a member of several professional organizations, including the European Society of Pediatric Gastroenterology, Hepatology and Nutrition. Dr. Amir is recognized for his clinical work and academic contributions in his field.

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Erwin Santo
Erwin Santo
Gastroenterologist
36 years of experience
4.4
147 reviews
Israel, Tel Aviv
Sourasky Medical Center (Ichilov)

Erwin Santo

Gastroenterologist
36 years of experience

accreditations:

European Society of Gastrointestinal Endoscopy
American Gastroenterological Association
European Association of Gastroenterology, Endoscopy and Nutrition

Dr. Erwin Santo is an Israeli top rated gastroenterologist, an expert in the diagnosis and treatment of gastric and liver diseases. He has extensive experience in the field, including heading the Gastroenterological Department at Sourasky Medical Center and being a co-founder of the European Society of Gastrointestinal Endoscopy. He is a member of the American Gastroenterological Association, the Israeli Association of Gastroenterology, and the European Association of Gastroenterology, Endoscopy and Nutrition.

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Zamir Halperin
Zamir Halperin
Gastroenterologist
41 years of experience
4.4
147 reviews
Israel, Tel Aviv
Sourasky Medical Center (Ichilov)

Zamir Halperin

Gastroenterologist
41 years of experience
He is the author of 152 scientific publications devoted to the diagnosis and treatment of diseases of the gastrointestinal tract and liver. Professor Galperin's scientific interests include the treatment of inflammatory bowel diseases, liver diseases, cholelithiasis, fatty hepatosis, and diseases of the upper gastrointestinal tract. He received a grant from the Schreiber Foundation for research on cholelithiasis. He is a laureate of the Bat-Sheva de Rothschild Prize for achievements in science and technology.Read more
Rafael Bruck
Rafael Bruck
Gastroenterologist
46 years of experience
4.4
147 reviews
Israel, Tel Aviv
Sourasky Medical Center (Ichilov)

Rafael Bruck

Gastroenterologist
46 years of experience

accreditations:

American Medical Association
Israel Medical Association
Israeli Association of Gastroenterology and Liver Diseases

Prof. Rafael Bruck is a highly experienced gastroenterologist and hepatologist with 40+ years of experience. He specializes in the treatment of acute and chronic diseases of the esophagus, stomach, small and large intestines, pancreas, gastrointestinal cancer, and biliary duct and liver abnormalities. He is a member of several medical organizations, including the American Medical Association.

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Halil Ozguc
Halil Ozguc
Colorectal surgeon
19 years of experience

Halil Ozguc

Colorectal surgeon
19 years of experience
Turkey, Bursa
Private Medicabil Hospital
Dr Gokmen Ozturk
Dr Gokmen Ozturk
Gastroenterologist
23 years of experience
Turkey, Istanbul
Vital Clinic

Dr Gokmen Ozturk

Gastroenterologist
23 years of experience

Assoc. Dr. Gokmen Ozturk is a General Surgery Specialist with 25 years of experience. He graduated from Bursa Uludag University Faculty of Medicine in 1994. He completed his surgical training at Okmeydanı Training and Research Hospital. Dr. Ozturk has also served as Deputy Chief Physician at Trabzon Fatih Regional Hospital.

Dr. Ozturk treats complex surgical cases, including bowel and colorectal cancer, breast cancer, liver metastasis, thyroid diseases, and obesity. He is skilled in minimally invasive and advanced surgical techniques. His approach helps improve patient outcomes and recovery. Dr. Ozturk currently works at Medipol University and Nisa Hospital. He is known for maintaining high standards of care and patient satisfaction.

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Mehmet Altan Kaya
Mehmet Altan Kaya
General surgeon
35 years of experience
Turkey, Istanbul
Grand Clinic

Mehmet Altan Kaya

General surgeon
35 years of experience

UNIVERSITY

Ankara University Faculty of Medicine 

 

UNIVERSITY WHERE HE TAKES EXPERTISE

Göztepe Training and Research Hospital General Surgery

 

CONGRESSES ATTENDED

National Endoscopic Laparoscopic Surgery Congress

World Congress on Controversies to Consensus in Diabetes, Obesity and Hypertension

Bariatric and Metabolic Surgery Congress

Cerrahpaşa Surgery Meetings Turkish Bariatric Surgery Association

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Peter Schenker
Peter Schenker
Pediatric surgeon
18 years of experience
4.6
58 reviews
Germany, Solingen
Medical Center in Solingen

Peter Schenker

Pediatric surgeon
18 years of experience

Membership in societies:

Expert of scientific journals 

Close co-operation with leading surgeons

Membership of the German Medical Association 

Specialities:

Introduction of new and modern techniques in the field of oncological surgery
General and visceral surgery

Minimally invasive surgery

Gastrointestinal oncology surgery

Oncological surgery

Haemorrhoids treatment

Additional clinical specialisation in minimally invasive and hernia surgery

Surgery and transplantation of the pancreas

Work Experience:

2005: Specialist in the field of surgery

2008: Appointed Senior Consultant specialising in pancreatic surgery and transplantation

2010: Coordinator of the Pancreatic Cancer Centre (Oncocert)

2013: Specialist in visceral surgery

2014: Managing Senior Physician, additional clinical specialisation in minimally invasive and hernia surgery

2019: Chief Surgeon of the Colorectal Cancer Centre Bochum (the first certified colorectal cancer centre in Germany and one of the first certified leading colorectal centres in Europe)

2021: Chief Surgeon of the Department of Surgery at the Academic Hospital Solingen

Thanks to the professor and his team, the department has been modernised by introducing modern surgical methods of treatment and especially improved methods of post-operative recovery. The Department of Surgery at the Solingen Clinic is now further expanding its focus on minimally invasive surgery in the direction of robotics. The clinic has allocated a huge budget for the purchase of state-of-the-art equipment in order to offer patients a full range of surgical methods for the treatment of benign and malignant diseases of the oesophagus, lungs, stomach, liver, pancreas and intestines according to current guidelines and using the most modern technical equipment.

Professor Schenker is an active researcher and lecturer. He lectures at medical universities and organises seminars and workshops for colleagues. He cooperates closely with the Cancer Centre, the Pancreatic Cancer Treatment Centre, the Intestinal Cancer Treatment Centre and the Interregional Trauma Centre.

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4.6
58 reviews
Doctor's visit price on request
Esophagectomy $3282 - $4376
Removal of duodenal polyp $282.53
Stomach resection $21472.57
More treatments
Ferit Çelik
Ferit Çelik
Gastroenterologist
15 years of experience
Turkey, İzmir
Medicalpoint International Hospital

Ferit Çelik

Gastroenterologist
15 years of experience

Education and Expertise

  • 2023 BAKIRÇAY UNIVERSITY ÇİĞLİ TRAINING AND RESEARCH HOSPITAL (ASSOCIATE PROFESSOR)
  • 2021 EGE UNIVERSITY FACULTY OF MEDICINE GASTROENTEROLOGY DEPARTMENT
  • 2017 EGE UNIVERSITY INTERNAL MEDICINE DEPARTMENT
  • 2010 EGE UNIVERSITY FACULTY OF MEDICINE

Diseases

  • Liver Diseases
  • Digestive Sy Diseases

Treatment Methods

  • Endoscopy
  • Endoscopic mucosal resection – EMR
  • Endoscopic Obesity Treatment (Intragastric , Intragastric Balloon)
  • Endoscopic Polypectomy
  • Endoscopic Retrograde Cholangio Pancreatography (ERCP)
  • Liver Transplant
  • Colonoscopy
  • Peroral Cholangioscopy

Experience

  • Diyarbakir 112 Emergency Health Services Chief Physician (2010-2011)
  • Ege University Faculty of Medicine, Department of Internal Medicine (2012-2017)
  • Ayvalik State Hospital (2017-2018)
  • Ege University Faculty of Medicine, Department of Gastroenterology (2018-2021)
  • Burdur State Hospital (2021-2022)
  • Bakırçay University Çiğli Training and Research Hospital (2022-2024)

Professional Memberships

  • 1.Turkish Gastroenterology Association (ERCP working group)
  • 2. Turkish Liver Research Association
  • 3. Turkish Medical Association
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Kristyan Vaik
Kristyan Vaik
Gastroenterologist
33 years of experience
4.2
11 reviews
Germany, Dusseldorf
Düsseldorf Clinics Association

Kristyan Vaik

Gastroenterologist
33 years of experience
Hepatologist, gastroenterologistRead more
Viktor Alexander Krol
Viktor Alexander Krol
Gastroenterologist
25 years of experience
4.0
1 review
Germany, Dusseldorf
St. Martinus-Krankenhaus Düsseldorf

Viktor Alexander Krol

Gastroenterologist
25 years of experience

Dr. Victor Alexander Krol - Chief of Gastroenterology, Internal Medicine and Obesity Treatment Center at Martinus Hospital

Dr. Victor Alexander Krol is a highly qualified specialist, heading the departments of gastroenterology and internal medicine. With many years of experience and deep knowledge in his field, Dr. Krol has established himself as an outstanding expert, providing patients with comprehensive treatment and an individual approach. He actively uses the latest methods of diagnosis and treatment of diseases of the gastrointestinal tract, metabolism, as well as diseases of the cardiovascular and respiratory sys.

Dr. Krol is also the director of the certified Obesity Treatment Center at Martinus Hospital, which provides surgical and endoscopic treatments for obesity. The center uses advanced technology to diagnose and treat obesity (adiposis), including methods such as bariatric surgery, endoscopic weight loss, and specialized programs for patients with different stages of obesity. The center is certified to high standards and has excellent results in the treatment of this serious disease.

The Gastroenterology Department, headed by Dr. Krol, diagnoses and treats diseases of the stomach, intestines, liver, pancreas, and gallbladder. The doctors of the department use a wide range of methods, including endoscopic procedures, ultrasound, and other modern diagnostic technologies.

The Department of Internal Medicine covers a wide range of diseases, including cardiology, diabetology, infectology, and therapy of respiratory and renal diseases. Dr. Krol and his team provide a comprehensive approach to treatment using the most advanced methods of medicine.

Thanks to his high professionalism and humane approach to each patient, Dr. Krol deservedly enjoys the respect of colleagues and patients.

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Piotr Jakub Major
Piotr Jakub Major
General surgeon
16 years of experience
Poland, Krakow
AllMedica Surgery in Poland

Piotr Jakub Major

General surgeon
16 years of experience

Professor Piotr Major, PhD, is a distinguished bariatric surgeon and academic at Jagiellonian University Collegium Medicum, specializing in minimally invasive techniques for gastrointestinal surgery. With a rich educational background, including an MBA in Healthcare and extensive professional qualifications, he has made significant contributions to the field of bariatric and oncological surgery. Currently, as the Coordinator of the Obesity Surgical Treatment Center at the University Hospital in Krakow, Professor Major continues to lead advancements in surgical treatments for obesity and cancer.


Education:

  • 2021 - 2023 Postgraduate studies "MBA in Healthcare", Cracow University of Economics, Cracow Business School
  •  
  • 2010 – 2014 PhD studies at the Faculty of Medicine, Jagiellonian University Collegium Medicum in Krakow
  •  
  • 2003 – 2009 Medical studies at the Faculty of Medicine, Jagiellonian University Collegium Medicum in Krakow
  •  

Professional qualification:

2 November 2020 Specialization in the oncological surgery head of specialization: Piotr Bodzioch

27 September 2017 European Specialization in General Surgery (Fellow of the European Board of Surgery, FEBS)

  • 7 April 2017 Specialization in general surgery head of specialization: Marek Winiarski, PhD
  •  
  • 22 December 2016 Certificate authorizing to perform procedures in the field of diagnostic and surgical endoscopy of the gastrointestinal tract issued by the Board of the Endoscopic Section of TChP
  •  

* 25 September 2014 Doctoral degree in medical sciences based on the doctoral dissertation entitled "Quality of life of patients after surgical treatment of giant obesity". Jagiellonian University Collegium Medicum Krakow

Professional career:

  • * since 2021 – currently Coordinator of the Obesity Surgical Treatment Center at the University Hospital in Krakow
  •  
  • * since 2020 – currently Professor, II Department of General Surgery, Jagiellonian University Collegium Medicum
  •  
  • * since 2019 – 2020 University professor, II Department of General Surgery, Jagiellonian University Collegium Medicum
  •  
  • * since 2015 – 2019 Assistant professor with the degree of habilitated doctor, II Department of General Surgery, Jagiellonian University Collegium Medicum
  •  
  • * since 2010 – currently Senior assistant at the Department of General, Oncological, Metabolic and Emergency Surgery, University Hospital in Krakow from 2016 to 2021 Program manager, Medical Center for Postgraduate Education of the Jagiellonian University

 

Scientific activity:

  • * November 26, 2020 - The title of professor of medical sciences and health sciences in the discipline of medical sciences
  •  
  • * 19 October 2017 Academic degree of habilitated Doctor of Medical Sciences based on the series of publications entitled "Selected factors affecting the safety of bariatric operations in patients treated surgically for giant obesity". Jagiellonian University Collegium Medicum Krakow
  •  
  • * 25 September 2014 Doctoral degree in medical sciences based on the doctoral dissertation entitled "Quality of life of patients after surgical treatment of giant obesity". Jagiellonian University Collegium Medicum Krakow

 

Main professional and scientific interests:

The main area of my work are minimally invasive surgical techniques used in gastrointestinal surgery (metabolic and bariatric surgery, oncological surgery). In the center of my professional and scientific interests are issues related to the surgical treatment of patients with giant obesity (bariatric and metabolic surgery). Minimally invasive oncological surgery (colorectal surgery and gastric surgery) is the second group of my clinical interests. Comprehensive and coordinated treatment, the possibilities of using the protocol of modern perioperative care (ERAS - Enhanced Recovery After Surgery) are the third largest area of my professional and scientific activity.

Research grants:

  • 2018/02/X/NZ4/00192 (MINIATURA): Selected aspects regarding the use of gastric balloon as a method supporting surgical treatment of obesity (project leader)
  •  
  • NCN/2011/03/D/NZ5/00551 (SONATA) The study of intestinal flora in patients with diabetes type 1 and 2 and with morbid obesity or pathological undergoing sleeve gastrectomy (project developer)
  •  
  • Grant of the Ministry of Science and Higher Education "Diamond Grant 2018"
  •  
  • Grant of the Ministry of Science and Higher Education "Diamond Grant 2019"

 

Functions performed:

  • * since 2019 Member of the Scientific Council of the Medical Sciences Discipline of the Jagiellonian University
  •  
  • * since 2018 Member of the Bioethics Committee of the Jagiellonian University
  •  
  • * since 2017 Member of the Management Board of the Bariatric and Metabolic Surgery Section of the Society of Polish Surgeons
  •  
  • * since 2017 Member of the Board of the Videosurgery
  • Section of the Society of Polish Surgeons

 

Foreign trips and internships:

  • * April 2023 Medical University of Vienna, Department of General Surgery, Vienna, Austria (Prof. Gerhard Prager)
  •  
  • * July 2023 Clevelenad Clinic Abu Dhabi, United Arab Emirates (Dr. Javed Raza, Dr. John Rodriquez)
  •  
  • * March 2022 Department of Bariatric Surgery, AZ Sint-Jan-Hospital Department Bruges, Belgium (Prof. Bruno Dilemans)
  •  
  • * October 2018 Department of Bariatric Surgery, AZ Sint-Jan-Hospital Department Bruges, Belgium (prof. Bruno Dilemans)
  •  
  • * July 2018 Department of Bariatric Surgery, Hospital Universitario Bellvitge Barcelona, Spain
  •  
  • * November 2016 Department of Bariatric Surgery, Homerton University Hospital, London, UK (Prof. Kesava Mannur)
  •  
  • * October 2015 Ludwig Maximillians Universität, Munich, Germany (Prof. Matthias Siebeck)
  •  
  • * September 2014 Scholarship of the Society of Polish Surgeons, University of Health and Welfare, Tokyo, Japan(prof. Masaki Kitajima)

 

Research and medical education courses and trainings:

  • * May 2017 Introduction to the methodology of developing syatic reviews, Centre for Syatic Reviews – Polish Branch of Cochrane UJ CM
  •  
  • * November 2016 Good Clinical Practices, NIDA Clinical Trials Network
  •  
  • * September 2015 How to get your paper published, Post Graduate Course, 20th World Congress of International Federation for the Surgery of Obesity and Related Diseases (IFSO), Vienna, Austria
  •  
  • * November 2015 Medical Education Training: Academic Teacher Training Course, Ludwig Maximilians-Universität, Munich, Germany

 

Membership in scientific societies:

  • * Society of Polish Surgeons (TChP):
    • * Member of the Board Section of Bariatric and Metabolic Surgery
    • * Member of the Board of the Videosurgery Section
    • * TChP Endoscopic Surgery Section
  • * International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO)
  • * The European Association for Endoscopic Surgery (EAES)

 

 

Until January 2021 - Author and co-author of 195 scientific publications.

Author and co-author of over 226 congress reports.

 

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Meryem Keceli Basaran
Meryem Keceli Basaran
Gastroenterologist
19 years of experience
Turkey, Istanbul
Biruni University Hospital

Meryem Keceli Basaran

Gastroenterologist
19 years of experience

Education

Doctor: Kilis Merkez No. 1 Health Center, 2006-2008
Assistant Doctor: Mersin University Faculty of Medicine, 2009-2013
Specialist Doctor: Bingöl Genç State Hospital, 2013-2014
Minor Assistant: Akdeniz University Faculty of Medicine, 2014-2017
Minor Specialist: Erzurum Regional Training and Research Hospital, 2017-2018
Subspecialist: Gaziosmanpaşa Training and Research Hospital, 2018-2020
Attending Specialist: Başakşehir Çam and Sakura City Hospital, 2020-2022
Associate Professor: Başakşehir Çam and Sakura City Hospital, 2023
Associate Professor: Istinye University Medicalpark Gaziosmanpaşa Hospital, 2023-2024

Scientific Memberships

Turkish Pediatric Society
Turkish Society for Pediatric Gastroenterology Hepatology and Nutrition
ESPGHAN - European Society for Pediatric Gastroenterology Hepatology and Nutrition.

 

Medical Intrests


  • -Irritable (Restless) Bowel Syndrome
  • -Food allergies associated with the digestive sy
  • -Constipation, faecal incontinence
  • -Acute and chronic diarrhoea, malabsorption
  • -Chronic abdominal pain
  • -Gastroesophageal reflux disease
  • -Celiac disease
  • -Ulcerative colitis, Crohn's disease
  • -Treatment before and after liver transplantation
  • -Acute and chronic pancreatitis


 

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Binnur Simsek
Binnur Simsek
Gastroenterologist
38 years of experience
4.5
229 reviews
Turkey, Istanbul
Liv Hospital Ulus

Binnur Simsek

Gastroenterologist
38 years of experience

Medical Interests and Activities 

Hepatic Cirrhosis and Portal Hypertension 

Hepatic Cancer 

Viral Hepatitides (Chronic Hepatitis B, C and Delta Infections) 

Alcoholic Chronic Liver Disease 

Non-Alcoholic Fatty Liver Disease 

Stomach and Duodenal Ulcer 

Gastrointestinal Hemorrhage (Ulcer and Varicose Vein Bleeding) 

Functional Digestive Sy Disorders (Irritable Bowel Syndrome, Functional Intestinal Obstruction and Diarrhea...) 

Inflammatory Bowel Diseases (Ulcerative Colitis, Crohn’s Disease) 

Malabsorption Syndromes (Celiac Disease and Alike) 

Gastrointestinal Tract Malignancies

Education and Experience 

Liv Hospital, Ulus, Gastroenterohepatology Department (2013 ...) 

Associate Professor of Medicine, Obligatory Service at Gastroenterology, Şanlıurfa Training and Research Hospital (2010 - 2012) 

Subspecialty in Gastroenterohepatology, Department of Gastroenterohepatology, İstanbul Faculty of Medicine, İstanbul University (2004 - 2010) 

Research Fellow, Physician, Department of Internal Diseases, 

İstanbul Faculty of Medicine, İstanbul University (1992 - 1998)

Memberships 

Turkish Association For The Study of The Liver 

Turkish Society of Gastroenterology 

Inflammatory Bowel Disease Society 

Internal Diseases Specialty Association

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Ahmet Omer Ozutemiz
Ahmet Omer Ozutemiz
Gastroenterologist
46 years of experience
Turkey, İzmir
Medicalpoint International Hospital

Ahmet Omer Ozutemiz

Gastroenterologist
46 years of experience

Education and Expertise

  • 1979 - DR - ANKARA UNIVERSITY FACULTY OF MEDICINE
  • 1984 - SPECIALIST DR. - EGE UNIVERSITY FACULTY OF MEDICINE INTERNAL DISEASES
  • 1992 - SUB-BRANCH SPECIALIST DR. - EGE UNIVERSITY FACULTY OF MEDICINE GASTROENTEROLOGY CLINIC
  • 1994 - ASSOC. PROFESSOR - EGE UNIVERSITY
  • 2000 - PROFESSOR DR. - EGE UNIVERSITY

Diseases

  • Inflammatory Bowel Diseases (Ulcerative Colitis, Crohn's Disease)
  • Large Intestine Diseases
  • Liver Diseases
  • Liver Inflammation
  • Liver Cancer
  • Fatty Liver
  • Stomach Diseases
  • Pancreatitis
  • Pancreas Cancer
  • Digestive Sy Diseases
  • Digestive sy cancer
  • Cirrhosis
  • Diseases of the Esophagus

Treatment Methods

  • Balloon Stent Applications in Achalasia
  • Spark Plug Applications
  • ERCP
  • Endoscopic Treatments for Digestive Sy Canal Strictures
  • Endoscopic Treatment of Digestive Sy Polyps
  • Stent 
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Dr Alaattin Ozturk
Dr Alaattin Ozturk
General surgeon
32 years of experience
5.0
1 review
Turkey, Istanbul
TWT Health Clinic

Dr Alaattin Ozturk

General surgeon
32 years of experience

accreditations:

Mediterranean Society of Coloproctology

Education

-1993 Uludag University, Bursa School of Medicine

-2007 Haydapasa Numune Hospital General Surgery Residency

 

Experience

 

  • - 1993-1998 Haydapasa Numune Hospital, General Surgery Assistant Surgeon
  • - 1998-2017 Private Hospitals , General Surgery Specialist 
  • - 2017-2022 Adatip Istanbul Hospital, Assistant Professor of General Surgery
  • - 2022 Lokman Hekim Istanbul Hospital, Assistant Professor of General Surgery

Memberships

• Turkish Medical Association 

• Turkish Society for Colon and Rectal Surgery 

• International Federation for Obesity Surgery 

• Mediterranean Societo of Coloproctology

 

Publications

  • - 34 International Publications 
  • - 35 National Publications 
  • - 45 National and International Congress
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Nihat Okcu
Nihat Okcu
Gastroenterologist
26 years of experience
Turkey, Istanbul
Medipol University Pendik Hospital

Nihat Okcu

Gastroenterologist
26 years of experience

Gastroenterology

Pendik Medipol University Hospital

Education

1999 Karadeniz Technical University, Gastroenterology

1997 Atatürk University, Internal Diseases Professorship

1992 Atatürk University, Internal Diseases Associated Professorship

1985 Atatürk University, Internal Diseases Specialist

1981 Atatürk University Faculty of Medicine

Publications

1- Nihat Okçu Gülçin Polat, Arif Yılmaz, Mehmet Koruk, The demographic features of gastric cancers in Erzurum(Eurasian J Med 2000; 32: 63-65)

2- An Evaluation of Upper Gastrointestinal Bleeding Cases. Clinical Sciences-Doctor.2000, - E.akarsu,N.Okçu,et Ark.Northeast Anatolia 6:4:435-438

3-N.Okçu, A.yılmaz. İ.kiki,MDonuk, C.gündoğdu, H.uzunismail. Our Diagnostic Upper Gastrointestinal Endoscopy Results. Atatürk University Medical Journal 1997,29 (2):486

4-N. Okçu, M.gündoğdu, MD onuk, İ.kiki, l.cerrahoğlu, k.yılmaz, I. çapoğlu. The Role of Misoprostol in Preventing Gastroduodenal Lesions in Patients Using Nonsteroidal Anti-Inflammatory Drugs (NSAIDs). Atatürk University Medical Journal 1997,29 (2):453-455.

5-N.Okçu, A. Öz, MD Onuk, E.Akarsu, B. Tekin, Hz Tonbul, H.Kaya. Fibronectin Levels in Chronic Active Hepatitis and Decoction of Liver Parenchymal Insufficiency and Their Relationship with Liver Functional Status. Turkish J. Gastroenterol 1995;27(4): 422-426.

6-N.Okçu, Tahir Buran, MD Onuk, A. Yılmaz, E.Akarsu, G. Akçay. Prevalence of Helicobacter Pylori in Patients with Duodenal Ulcer in Erzurum and Surrounding Area. Turkish J. Gastroenterol 1995;27(4): 447-450.

7-N.Okçu, bs awake, e. akarsu, e. bakan, z. tonbul. Importance of Carbohydrate Antigens (CA-19-9, CA-125), Carcinoembryonic Antigen (CEA) and Alkaline Phosphatase in Gastric and Colorectal Cancers. Turkish J. Gastroenterol 1995;6:467-471.

8-N. Okçu, MD Onuk, E. Akarsu, H. Doğan, C. Gündoğdu. Major Risk Factors in Patients with Hepatocellular Carcinoma in Our Region. Gastroenterology 1994;5(2):154-157

9-N.Okçu, md. Onuk, e. akarsu, h. doğan, c.gündoğdu, tahir buran. Frequency of gastric carcinoma in Erzurum region, endoscopic and histological features. Gastroenterology 1994;5(2):263-267.

10-N. Okçu, MD Onuk, Tahir Buran, E. Akarsu, MA Çiftçioğlu. Frequency of Helicobacter Pylori in Nonspecific Gastritis Cases in Erzurum Province. Gastroenterology 1994;5(2):211-213.

11-N.Okçu, MD Onuk, Ö. Ünal, E. Akarsu, L. İncesu, K. Akgöz. Diagnostic Value of Ultrasound-Guided Fine Needle Aspiration Biopsy in Intra-Abdominal Mass Lesions. Gastroenterology 1993;4(1):166-68.

12-NOkçu, md. onuk, m. polat, a. yılmaz, m. gündoğdu, m. paç. Budd-Chiari Syndrome (2 Cases). Turkish J Gastroenterhepatol 1993; 4(1):77-80.

13-N.Okçu, H. Koçak, MD Onuk, M. Gündoğdu, E. Bakan, A. Yılmaz, A. Başoğlu, A. Ateş, F.A. Paç. The Effect of Atrial Pressure Changes and Cardiac Nerves on Atrial Natriuretic Peptide (ANP) Levels. Vascular Surgery 1993; 27(2): 128-132

15-N.Okçu, MD Onuk, A.Yılmaz, M. Gündoğdu, T. Buran. Effects of Omeprozole and Ranitidine on Peptic Ulcer Healing. Doğa-Tr.J. of Medical Sciences 1992;16:657-658.

16-N. Okçu, Mr. Yiğitoğlu, B. Adam, E. Bakan. The Effect of Digixin on Atrial Natriuretic Peptic Level in Patients with Congestive Heart Failure. S.Ü. Medical Faculty Journal 1991;7(2):243-247..

17-N.Okçu, A. Yılmaz. The Effect of Histamine H2 -Receptor Antagonists in Upper Gastrointestinal Sy Bleeding. Endoscopy Journal 1991;2(4):17-23.

18-N.Okçu, E. Bakan, B. Adam, A. Yılmaz, Mr. Yiğitoğlu. Sex Hormones and Sex Hormone Binding Globulin Levels in Patients with Chronic Hepatitis and Liver Cirrhosis (Letter to the Editor). Nature-Tr. J. Of Medical Sciences 1991;15:1-2.

19-N.Okcu Ömer Yılmaz.Helıcobacter pylori and related gastrointestinal sy diseases. Turkish Clinics JMed Sci. 2013;33(3):806-13

20-Nihat Okçu, Ömer Yılmaz, Hakan Dursun, Gülçin Polat. The relationship between dyspeptic symptoms, nutritional habits, endoscopic and histological findings (Eurasian J Med 2006; 38: 13-17)

21-Mehmet Bilici,1Nihat Okcu,1Kerim Cayir,1Ibrahim Pirim,2Salim B. Tekin,1andCemal Gundogdu3 - Distribution of HLA Tissue Groups in Patients with Gastric Cancer Eurasian J Med. 2010 Apr; 42(1): 9.11.

22-Nihat Okcu,Abdulhalim Bak,Mehmet Sari,Mehmet Arslan,Sait Kapicioglu:The fibroblast proliferation, relationship of hepatocyte growth factor (HGF) and -A2A Gastroenterology April 2000Volume 118,Issue 4, Part 2, PageA1404

23-Kubra Kaynar,Sait Kapicioglu,Mehmet Sari,Nihat Okcu,Abdulhalim Baki. The effect of fish oil on stress ulcer prophylaxis GastroenterologyVolume 118, Issue 4, Part 2, PageA1255

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Hamdi Levent Doganay
Hamdi Levent Doganay
Gastroenterologist
24 years of experience
5.0
1 review
Turkey, Istanbul
VM Medical Park Pendik Hospital

Hamdi Levent Doganay

Gastroenterologist
24 years of experience

Education & Expertise

1995 to 2001 | Ege University Faculty of Medicine – Medical Education

2001 to 2006 | Dokuz Eylül University Faculty of Medicine – Internal Medicine Specialization

2008 to 2011 | Göztepe Training and Research Hospital – Gastroenterology Subspecialty

2014 | Ümraniye Training and Research Hospital – Associate Professor of Gastroenterology

2021 | University of Health Sciences – Professor

 

Professional Experience

2007 | Nusaybin State Hospital – Internal Medicine Specialist (Civil Service Obligation)

2011 to 2014 | Ümraniye Training and Research Hospital – Gastroenterology Specialist

2014 to 2017 | Ümraniye Training and Research Hospital – Associate Professor of Gastroenterology

2017 to 2021 | Health Sciences University – Associate Professor of Gastroenterology

2015 to 2021 | Ümraniye Training and Research Hospital Gastroenterology Clinic – Clinic Chief

2021 to 2022 | University of Health Sciences – Professor of Internal Medicine and Gastroenterology

2015 to 2022 | Genomic Laboratory (GLAB) Coordinator, Istanbul Provincial Health Directorate

2014 to 2021 | Northern Clinics of Istanbul Journal (indexed in WoS and PubMed) – Founding Editor

2021 to Present | Turkish Liver Research Association – Board Member

2022 to Present | Hepatology Bulletin Journal – Editor

2019 to Present | Hepatology Forum Magazine – Editor

2016 to Present | World Journal of Hepatology – Editor

 

International Experience

1999 | Trainee Doctor, Regional Infectious Diseases Unit, Western General Hospital, Edinburgh, UK

2000 | Trainee Doctor, Cardiology Unit, North Manchester General Hospital, Manchester, UK

2005 | Assistant Doctor, Regional Infectious Diseases Unit, Western General Hospital, Edinburgh, UK

 

Professional Memberships

Turkish Gastroenterology Association

Turkish Liver Research Association

EASL – European Association for the Study of Liver

APASL – Asian Pacific Association for the Study of Liver

AAAS – American Association for the Advancement of Science

 

Awards & Recognitions

2013 | Liver Fibrosis Pathways in Chronic Hepatitis B: A Comparative Proteomic Study – Gilead Fellowship Award

2014 | Liver Fibrosis Pathways in Chronic Hepatitis B: A Comparative Proteomic Study – Viral Hepatitis Fight Association Project Support Award

2014 | The Relationship between Spontaneous Seroconversion and Toll-Like Receptor Gene Polymorphism in Hepatitis B Infection – Turkish Gastroenterology Association, Best Poster Second Prize

2015 | Research on Damage Pathways in Liver Tissue in Chronic Hepatitis B: A Comparative Proteomic Study – Turkish Gastroenterology Association, Best Oral Presentation Third Prize

2016 | Investigations of the EGF and Its Receptor EGFR Gene Variants in Ulcerative Colitis – XV Euroasian Congress of Gastroenterology and Surgery, Best Oral Presentation Third Prize

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Oguzhan Ozturk
Oguzhan Ozturk
Gastroenterologist
18 years of experience
Turkey, Istanbul
Biruni University Hospital

Oguzhan Ozturk

Gastroenterologist
18 years of experience

Education

Undergraduate Faculty of Medicine Trakya University 1995-2001
Medical Residency Internal Medicine Uludağ University 2001-2006
Subspecialty Gastroenterology Medeniyet University, Göztepe Training and Research Hospital / Gastroenterology Clinic 2007-2011

Experience

Internal Diseases
Assistant doctor Uludağ University Faculty of Medicine
Internal Diseases USA 2001-2006

Internal Diseases Specialist Şanlı Urfa Mehmet Akif İnan
Training and Research Hospital 2007
(Jul-Dec)

Gastroenterology Minor
Assistant Istanbul Medeniyet Universityniversitesi
Göztepe Training and Research Hospital
Gastroenterology Clinic 2007-2011
Gastroenterology Specialist Sivas Numune Hospital 2011-2013

Gastroenterology
Chief Resident Health Sciences University
Ümraniye Training and Research Hospital 2013-2017

Assoc. Dr.
Chief Assistant of Gastroenterology Clinic University of Health Sciences
Ümraniye Training and Research Hospital
2017-2021

Assoc. Dr.
Gastroenterology Clinic Administrative Responsible University of Health Sciences
Ümraniye Training and Research Hospital
2021-2024

Scientific Memberships
 

Turkish Society of Gastroenterology
Turkish Association of Liver Research
Gastrointestinal Endoscopy Society

Awards

Third Prize for Oral Presentation, 32nd National Gastroenterology Week, Turkish Gastroenterology Association, November 25-29, 2015. Turkish J. Gastroenterol 2015;26(suppl 1): Oral Presentation 03, S:11
Oral Presentation Third Prize. XVth Eurasian Congress of Gastroenterology and Surgery, 27 apr-01 May 2016, Antalya P:89

 

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Kamil Ozdil
Kamil Ozdil
Gastroenterologist
18 years of experience
Turkey, Istanbul
Biruni University Hospital

Kamil Ozdil

Gastroenterologist
18 years of experience

Education

  • Graduation: Faculty of Medicine, Istanbul University, 1994
  • Specialization: Internal Medicine, SBU Haseki Hospital, 1998
  • Specialization: Gastroenterology, SBU Sisli Etfal Hospital, 2007
  •  

Experience

  • Associate Professorship SBÜ Ümraniye EAH, 2012
  • Professorship SBÜ Ümraniye EAH, 2017
  • Professorship Biruni University, 2023
  •  

Scientific Memberships

  • Turkish Gastroenterology Association
  • Turkish Liver Association
  • Inflammatory Bowel Diseases Association
  • HEBIPA (Hepatitis Infections Union and Prophylaxis Association)
  •  

Awards

  • "National Scholar Award" in 2011 UEGW Stockholm for his study titled "Levofloxacin Based Sequential and Triple Therapy Compared with Standard Plus Probiotic Combination for Helicobacter Pylori Eradication".
  • "Microscopic Colitis and Focal Active Colitis Coexistence in Patients with Irritable Bowel Syndrome" 3rd prize in the Poster Paper category at the 23rd National Gastroenterology Week 2006.
  • "Investigation of Damage Pathways in Liver Tissue in Chronic Hepatitis B: A Comparative Proteomic Study" in the 26th issue of Turkish J. Gastroenterol in 2015.
  • "Investigations of the EGF and its receptor EGFR gene variants in ulcerative colitis", 3rd prize in the Oral Presentation category at the XVth Eurasian Congress of Gastroenterology and Surgery 2016.
  • 1st prize in the Oral Presentation category at the XVIth National Hepatitis Congress in 2023 with the study titled "Prospective evaluation of four-year follow-up results of Hepatitis C patients in AMATEM follow-up".

 

Medical Intrests

  • EUS
  • ERCP
  • Cholangioscopy
  • POEM
  • Stomach Balloon
  • ESD
  • Colonoscopy
  • Polypectomy
  • Inflammatory bowel diseases
  • Liver Cirrhosis
  • Gastroesophagial Reflux Disease,
  • Functional Diseases
  • IBS
  • Dyspepsia
  • Motility
  • Manometry
  •  
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