Best Biopsy gastroenterologists: TOP 372 doctors

Born in Trabzon in 1972, Dr. İzzettin Kahraman began his medical studies at Karadeniz Technical University Faculty of Medicine in 1989 and earned his Medical Doctor degree in 1995. Following two years as a general practitioner, he embarked on his specialization training in 1997. He completed his residency at Ankara Oncology Training and Research Hospital, becoming a General Surgery Specialist in 2002.

Dr. Kahraman worked as a General Surgery Specialist in public hospitals, including Trabzon Numune Hospital and Bakırköy Dr. Sadi Konuk Training and Research Hospital, for 13 years. From 2016 to 2018, he served as a Lecturer at University of Health Sciences. In 2019, he transitioned to the private sector, continuing his career in private hospitals.

Throughout his career, Dr. Kahraman has engaged in a wide range of training programs both in Turkey and abroad. In 2007, he earned a Surgical Endoscopy Certificate and furthered his expertise in laparoscopic hernia treatments in Hamburg, Germany, in 2008. He also completed a course on Nutrition Practices and Training at Ondokuz Mayis University and a specialized course in laparoscopic hernia repair in Istanbul in 2010.

In 2011, after completing the "Emergency Surgery" course in Istanbul organized by the European Society for Trauma and Emergency Surgery (ESTES), Dr. Kahraman received training in SILS (Single Incision Laparoscopic Surgery) Cholecystectomy at Gazi University in Ankara. Since then, he has specialized in advanced laparoscopic techniques, with a particular focus on endoscopy, gastric diseases, obesity, and metabolic surgery.

In 2021, Dr. Kahraman obtained certificates in Ozone Therapy and Mesotherapy from Medipol University. 

Since 2023, he has been serving at Estexper Clinic, Istanbul.

Education and Career

2011 – 2015, (Internal Medicine Specialist) Istanbul University Istanbul School of Education and Career

Medicine Department of Internal Medicine

2015 – 2016, (Internal Medicine) Specialist Istanbul Haydarpasa Numune Training and Research Hospital

2016 – 2019, (Medical Oncology) Istanbul University Istanbul School of Medicine Department of Medical Oncology

2019 – 2021, (Medical Oncology Specialist) - Istanbul Haydarpasa Numune Training and Research Hospital

2021 – 2024, (Associate Professor) Marmara University School of Medicine Department of Medical Oncology

Memberships in Scientific Organizations

ASCO

ESMO

TTOD 

AVOD 

Publications

In the field of oncology, he has published over 30 peer-reviewed articles at both international and national levels.

Awards Received

EAACI The European Academy of Allergy and Clinical Immunology 2019 Best Poster Award

"The top 3rd verbal presentation, IGICC (11th International Gastrointestinal Cancers Conference – IGICC2021)"

Speeches Delivered at National Congresses, Conferences, and Symposia:

Courses, Meetings, and Certificates

ESMO certified Medical Oncologist since 2019

Specializations

Oncological Surgery (Cancer Surgery)

Breast Diseases Surgery

Gallbladder and biliary tract diseases surgery

Thyroid – Parathyroid Surgery

Inguinal and Abdominal Wall Hernia, Stomach Hernia Surgery

Closed (Laparoscopic) Hernia Surgery

Endoscopy Applications

Treatment of Gastrointestinal System Diseases

Dr. Bilal Ergul, MD, is a pioneering force in the field of gastroenterology.  

His innovative treatment protocols have transformed the lives of many patients, including a remarkable case where he successfully treated a patient with a Peroral Endoscopic Myotomy (POEM) surgery.

Dr. Bilal Ergul, often says, ‘Healing is more than treating a condition; it’s about restoring hope and improving lives.’ This philosophy is evident in every aspect of his work, making his and his team truly inspirational figure in the medical community."
He has authored around 100 publications in different academic topics

Personal Information 

Sex:  Male

Born : 1968 

Professional Experience

Gayrettepe Florence Nigthingale Hospital

Medical Oncology Department

Besiktas/Istanbul/Turkey (ongoing)

Education:

He became Professor (22/April /2016)

Medical Oncology

Attending Phys.in Gastrointestinal Oncology (January 2005 ,2009)

Istanbul University Oncology Institue,

Department of Medical Oncology

Medical Oncology Fellowship (December 2001-December2004)

Istanbul University, Istanbul Medical Faculty

Hemodialysis Traning (May1996-January1997)

Istanbul University ,bCerrahpasa Medical Faculty

Internal Medicine Residency (November 1991-November 1996)

Istanbul University ,bCerrahpasa Medical Faculty

Ege University Medical Faculty (1985-1991)

Professional Experience

February 1999-November 2001

Metropolitan Florence Nigthingale Hospital

American Cancer Center, Gayrettepe/İstanbul

April1997- October 1998

Bayraktar Dialysis Center

Güngören/ Istanbul

Membership

Turkish Medical Oncology Association

ENET(European Neuroendocrine Tumour Society)

ESMO

ASCO

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Education:

Medical Degree: Çukurova University Faculty of Medicine (1993)

Specialization in Urology: Şişli Etfal Training and Research Hospital (2005)

Professional Experience:

Current Position: Practicing at İstinye University Hospital Medical Park Gaziosmanpaşa, Istanbul

Past Experience: Extensive work in both public and private healthcare sectors, including significant contributions at Istanbul İstinye University Health Practice and Research Center.

Areas of Interest:

Pediatric Urology

Urogynecology

Treatment of pediatric urology disorders

Urological surgeries and procedures

Professional Memberships:

Member of several prestigious medical societies, including the Turkish Medical Association, European Society of Pediatric Urology, and the Turkish Society of Pediatric Urology.

Certifications:

Dr. Güllüoğlu has completed numerous certifications and advanced training programs, reflecting his commitment to continuous professional development and staying at the forefront of urological advancements.

Otolaryngologist. Head of the ENT organs Oncology Center

Dr. Axel Stang is a professor, Head Physician of Asklepios Barmbek Clinic, with a specialization in internal medicine, oncology, and hematology. He conducts antibody and molecular therapies to reduce tumor size, and is a member of multiple organizations and societies. Dr. Stang has published articles on the effectiveness of radiofrequency ablation in treating of metastatic colon cancer, and was a member of a research group that studied the effects of liver embolization. Patients can submit a request on the Bookimed website to get a consultation with the professor.

• Médico Cirujano y partero egresado Centro Universitario de Ciencias de la Salud de la Universidad de Guadalajara.
• Formación como Médico Residente en la especialidad de Ginecología y Obstetricia del Nuevo Hospital de Guadalajara ‘Dr. Juan Ignacio Menchaca’
• Realizó su servicio social en la Unidad de Medicina Familiar #34 del Instituto Mexicano del Seguro Social.
• Especialidad en Ginecología y Obstetricia en el Hospital Civil de Guadalajara Dr. Juan I. Menchaca, Guadalajara, Jalisco, generación 2016-2020.
• Subespecialidad en Biología de la Reproducción Humana en el Instituto Mexicano de Infertilidad, Guadalajara, Jalisco, Generación 2020-2022.
• Experiencia docente como Instructor en el desarrollo de las prácticas de laboratorio de la materia ‘Inmunología’
• Participación en la estancia académica del XVII Verano de Investigación Científica y Tecnológica del Pacífico, en las instalaciones de la Unidad de Investigación en Epidemiología Clínica del Hospital General Regional No. 1 ‘Carlos Mac Gregor Sanchez Navarro’ con el trabajo ‘PREVALENCIA DE NEUROPATÍA DIABETICA PERIFERICA DISTAL ASOCIADA A CONTROL METABOLICO DE ACUERDO A LA ADA’
• Participación en el protocolo de investigación sobre ‘Mecánica Arterial’ en las instalaciones del Departamento de Investigación Cardiovascular del Centro Universitario de Ciencias de la Salud.

• AREAS OF INTEREST
• Abdominal lining cancers
• Gastric cancer
• Colon rectum cancer
• pancreatic cancer
• breast cancer diseases
• Thyroid cancer diseases
• Liver gallbladder surgery
• Laparoscopic cancer surgery

• Education
• 1993 Ondokuzmayıs University Faculty of Medicine
• 2000 Ankara University Faculty of Medicine Medical Specialization
• 2007 Ankara University Surgical Oncology Sub-branch Specialization

• Experience
• 1995-2000 Ankara University Faculty of Medicine Department of General Surgery Res.Asst.
• 2001-2002 Cumhuriyet University Faculty of Medicine Department of General Surgery Lecturer
• 2002-April 2004 Cumhuriyet University Faculty of Medicine Department of General Surgery Assoc. Prof.
• 2004- October 2007 Ankara University Faculty of Medicine, Surgical Oncology Subspecialty Training
• October 2006 Cumhuriyet University Faculty of Medicine, Department of General Surgery, Associate Professor
• January 2012 Cumhuriyet University Faculty of Medicine, Department of General Surgery, Professor

• Memberships in Scientific Organizations
• Surgical Oncology Association, Turkish Surgical Association
• Turkish Colon and Rectal Surgery Association
• National Vascular Surgery Association, Turkish Medical Association
• Refereeing in Scientific Journals
• Turkish Journal of Surgery
• Turkish Clinics Journal of Medical Sciences
• Cumhuriyet Medical Journal  
• Dicle Medical Journal

• Awards
• Best Research Award (E19)
• Surgical Oncology Congress (Istanbul, 2003)
• Poster 3rd Place Award (E7)
• Poster 1st Place Award (E51)
• Clinical Enteral Parenteral Nutrition
• Congress (Istanbul, 2000)
• TÜSAD (Çeşme 2012)
•  
•  
• Education and Training:
• Medical Degree: Graduated from Ankara University Faculty of Medicine.
• Specialization in General Surgery: Completed residency at Ankara University Faculty of Medicine from 1995 to 2000.
• Subspecialty in Surgical Oncology: Advanced training in Surgical Oncology at Ankara University from 2004 to 2007.

• Professional Experience:
• Academic Roles: Served as Assistant Professor and Associate Professor at Cumhuriyet University Faculty of Medicine, contributing significantly to medical education and research from 2001 to 2004.
• Current Position: Practicing at İstinye University Hospital Medical Park Gaziosmanpaşa, Istanbul, where he provides expert surgical oncology and general surgery services.

• Areas of Expertise:
• Cancer Surgery: Specializes in colorectal, gastric, pancreatic, and liver cancers, with extensive experience in managing complex oncological cases.
• General Surgery: Expertise in treating conditions such as gallstones, hernias, thyroid disorders, and gastrointestinal diseases.
• Advanced Surgical Techniques: Proficient in minimally invasive laparoscopic and robotic surgeries, ensuring better outcomes and quicker recovery for patients.

• Achievements and Recognition:
• Published Research: Authored numerous articles in prestigious medical journals, contributing to advancements in surgical oncology.
• Professional Awards: Recipient of the Best Research Award at the Surgical Oncology Congress in Istanbul (2003) and a Poster Award for his contributions to cancer research.

• Areas of Interest:
• Venous system diseases
• Varicose vein treatment
• Interventional treatments under ultrasound
• Whole organ biopsies
• Oncological interventional tumor therapy
• Chemoembolization
• Radioembolization
• Ablation treatments
• Angiographic treatments for prostate disease

•  
• Education and Specialization:
• 2004-2007: Medical Faculty, Azerbaijan
• 2007-2010: Istanbul University Cerrahpasa Faculty of Medicine
• 2011-2013: Research Fellow, Department of Endocrine Surgery, Cleveland Clinic, Ohio
• 2013-2015: Resident, Department of General Surgery, Cleveland Clinic, Ohio
• 2016-2020: Radiology Residency, Istanbul University Faculty of Medicine
• 2020-2021: Private Medicine Hospital
• 2021-Present: İstinye University Hospital Medical Park Gaziosmanpaşa

• Professional Memberships:
• Turkish Society of Radiology (TRD)
• European Society of Radiology (ECR)
• Turkish Society of Interventional Radiology (TGRD)

• Languages:
• English
• Russian

• Courses and Certifications:
• ECFMG certificate - American Medical Doctor Equivalence Certificate

Education:

• 2022: Fellowship in Reproductive Medicine, Chulalongkorn University

• 2020: Residency in Obstetrics and Gynaecology, Chiang Mai University

• 2016: Doctor of Medicine, Navamindradhiraj University (1st class honor)

Work Experience:

• Reproductive Medicine Specialist at Chulabhorn Hospital, Chulabhorn Royal Academy


Academic Work:

• Won first-place research award with the research title: The effect of combined hormonal contraceptives usage on bone turnover markers: a systematic review and meta-analysis

• The best research presentation award provided by Thai Osteoporosis Foundation

• AREAS OF INTEREST
• brain pacemaker
• spinal cord pacemaker
• brain tumors
• spinal cord tumors
• Trigeminal Neuralgias
• Surgical Treatment of Cervical Disc Herniation
• Non-Surgical Treatment of Cervical Disc Herniation
• Pediatric Neck Surgery

• Education:
• Secondary Education: Anatolian High School, Gaziantep (1993-1997)
• High School: Vehbi Dinçerler Science High School, Gaziantep (1997-2000)
• Medical Degree: Faculty of Medicine, Eskişehir Osmangazi University (2000-2007)
• Specialization in Medicine: Şişli Etfal Brain and Neurosurgery Clinic, Istanbul (2008-2013)
•  
• Professional Experience:
• 2007-2008: Responsible Physician, Sekili Health Center, Gaziantep
• 2008-2013: Specialist, Şişli Etfal Brain and Neurosurgery Clinic, Istanbul
• 2013-2015: Specialist, Malatya State Hospital, Malatya
• 2015-2016: Assistant Professor, Harran University, Şanlıurfa
• 2016-2020: Specialist, Şişli Hamidiye Etfal Human Resources Hospital, Department of Brain and Neurosurgery
• 2020-Present: Associate Professor, Şişli Hamidiye Etfal Human Resources Hospital, Department of Brain and Neurosurgery

• Special Certified Educations:
• Neuromodulation Fellowship Program:
• Module I: Foundations of Neuromodulation, Abbott Training Center, Zaventem, Belgium (September 27-29, 2018)
• Module II: Treatment Strategies for Low Back Pain, St. Augustinus Hospital, Antwerp, Belgium (December 13-15, 2018)
• Module III: Treatment Strategies for Focal Neuropathic Pain, Academic Medical Center, Amsterdam, Netherlands (February 7-9, 2019)
• Module IV: Basic Aspects of DBS, University Clinic, Düsseldorf, Germany (April 4-6, 2019)
• Module V: Advanced Concepts and Transition to Practice, Barcelona, Spain (May 15-17, 2019)
• Fellow Program: Maastricht UMC+ Hospital, Deep Brain Stimulation, Maastricht, Netherlands (January 1, 2020 - March 31, 2020)
• Skull Base Surgery Cadaver Course: Istanbul, 2013
• Minimally Invasive Spinal Surgery Techniques: Hands-on Cadaver Course, Antalya, 2014
• Ditrax (Posterior Cervical Facet Joint Decompression): Cadaver Course, Düsseldorf, 2015

Compassionate Care: Known for his patient-first approach, Dr. Kılıç ensures that each patient receives personalized, compassionate, and effective treatment.

Assoc. Prof. Ozdogan, M.D., Ph.D., completed his education at Yeditepe University Health Sciences Institute in the Molecular Medicine Doctorate Program under Prof. Dr. Turgay İsbir, and he also studied at Saint Louis University in Arkansas, USA, with Prof. Dr. M. Gazi Yasargil. He pursued a Clinical Fellowship in Brain and Nerve Surgery at Yeditepe University Hospital, guided by Prof. Dr. Yasargil and Prof. Dr. Uğur Türe. Additionally, he underwent specialization training at Ufuk University Faculty of Medicine, the Faculty of Medicine at Gazi University, and completed his secondary education at İçel Anatolian High School.

Professionally, he has held various positions, including Faculty Member in the Department of Neurosurgery at Haliç University, and Associate Professor at Private Adatip Istanbul Hospital and Biruni University Hospital. He has also served as an Associate Professor at S.B.U. Kartal, Sancaktepe, and Istanbul Training and Research Hospitals, and worked as a Chief Assistant at S.B.U. Gaziosmanpaşa Taksim and Kartal Training and Research Hospitals. His earlier roles include Specialist Doctor at S.B.U. Baltalimanı Bone Diseases Hospital and Mus State Hospital, as well as Clinical Fellow at Yeditepe University Faculty of Medicine Hospital.

Assoc. Prof. Özdoğan is a member of several professional associations, including the Turkish Neurosurgery Association, Turkish Spine Association, and the Turkish Neurosurgery Society’s Neuroanatomy, Neurovascular, and Neurooncology Groups. He is also affiliated with the European Association of Neurosurgical Societies.

Personal information

Title: Professor Doctor

Branch: Radiation Oncology

Work History:

1 GATA Military Medical Faculty

2 Gayrettepe Florence Nightingale Hospital

3 T.R. Demiroğlu Bilim University \ Associate Professor

4 T.R Demiroğlu Bilim University \ Professor

Medical Specialties and Subspecialties:

1 Head and Neck Cancers

2 Radiation Oncology

Priority treatments:

1 Prostate cancer

2 Conformal treatments

Special advanced health technologies:

1 Truebeam Stx Technology

2 Halcyons

Education

1991 - Istanbul University Istanbul Faculty of Medicine

1996 - Istanbul University Cerrahpaşa Faculty of Medicine Radiation

Oncology Specialization Training