Page 2 - Best Stomach cancer doctors in Istanbul: TOP 45 doctors

Assistant Professor Tahsin Ozadli brings 23 years of experience of oncology experience, specializing in gastrointestinal cancers including stomach cancer.

• Performed 1,100+ procedures in medical oncology
• Trained at Ankara Oncology Hospital – Turkey's leading cancer center
• Special focus on gastric and esophageal cancers
• Published researcher in oncology field

Dr. Topcu specializes in stomach cancer and other gastrointestinal cancers, with training at top international centers like MD Anderson Cancer Center.

• Medical oncology specialist with 18 years of experience of experience
• Trained at MD Anderson Cancer Center and Sunnybrook Odette Cancer Center
• Works at Valued Med Hub Hospitals
• Specializes in gastrointestinal system cancers including stomach cancer

Dr. Saban Sec specializes in gastrointestinal cancers, with a strong focus on stomach cancer, and is an active member of the Turkish Medical Oncology Association.

• Medical oncology specialist since 2017
• Published research on HER2-positive metastatic gastric cancer
• Works at Bahçelievler Medikalpark Hospital
• Member of the Turkish Medical Oncology Association

Professor Ondzhel leads the Surgery Department at Medipol University Hospital, with deep expertise in gastrointestinal cancers.

• Board-certified oncological surgeon since 2009
• Trained in colorectal surgery at the renowned Cleveland Clinic in the USA
• Member of the European Society of Coloproctology
• Holds an International Fellowship from the American Society of Colorectal Surgeons
• Recipient of a 'Most Successful Scientist of the Year' national award for healthcare research

Over a decade of specialized experience in neuroendocrine and complex upper gastrointestinal cancers. Dr. Yildiz practices at Medipol Mega University Hospital.

• Senior oncologist managing a wide range of rare and difficult cancers
• Published 15+ scientific papers in international medical journals
• Specialized experience in treating neuroendocrine tumors of the gut
• Clinical expertise includes both common and unusual cancer presentations

Dr. Kaplan specializes in radiation oncology, focusing on precise treatment approaches for stomach cancer at Medipol Mega University Hospital.

• Expert in advanced radiation therapy techniques
• Works with a multidisciplinary team for comprehensive care
• Dedicated to personalized treatment plans

Associate Professor Tahsin Ozatli specializes in gastrointestinal cancers at Istinye Liv University Hospital.

• Over a decade of experience in oncology
• Worked at Ankara Oncology Clinic and Erzurum Regional Training Hospital
• Board-certified in internal medicine
• Promoted to Associate Professor in 2016

Associate Professor Nail Paksoy specializes in stomach cancer treatment at Medipol Bahcelievler Hospital, with extensive experience in medical oncology.

• ESMO Board Certified in Medical Oncology
• Participated in international clinical trials for gastrointestinal cancers
• Published research on FLOT regimen efficacy in metastatic gastric cancer
• Fellowship-trained at Istanbul University Oncology Institute

Dr. Muzaffer Al specializes in laparoscopic and oncological cancer surgery, with advanced training from Istanbul University and KTÜ Faculty of Medicine.

• Over 16 years of experience of experience in general surgery
• Advanced training in laparoscopic bariatric and antireflux surgery
• Specialized in laparoscopic oncological cancer surgery techniques
• Graduated from Ondokuz Mayıs University Faculty of Medicine

Dr. Ozden brings over 27 years of experience of experience in internal medicine and medical oncology, with specialized training from Istanbul University's prestigious Cerrahpaşa Faculty of Medicine.

• Completed medical oncology subspecialty at Kocaeli University Faculty of Medicine
• Extensive experience in internal medicine across multiple hospitals
• Graduated from English Medical Program at Istanbul University

Professor Gul Alco specializes in radiation oncology for stomach cancer at Istanbul Medipol University.

• Over 31 years of experience of experience in radiation oncology
• Professor at Demiroglu Bilim University – trained other specialists
• Works at Medipol Acibadem District Hospital
• Completed residency at Kadir Has University

Assoc. Prof. Atakan Topçu, M.D., is a medical oncologist at Medipol University and Medipol Acıbadem Regional Hospital. He treats solid tumors, including lung, breast, colorectal, gastric, and neuroendocrine cancers. His work also covers targeted therapies, immunotherapy, geriatric oncology, and cancer-related malnutrition, cachexia, and sarcopenia.

He has authored more than 50 peer-reviewed papers. Recent work includes a 2024 Frontiers in Medicine study on geriatric syndromes and a 2023 Future Oncology paper on sarcopenia and anxiety in lung cancer. He has also published on the CONUT score in breast cancer and on malnutrition in HER2-negative metastatic gastric cancer.

Dr. Topçu serves on the Editorial Board of BMC Cancer. He is a member of the Turkish Society of Medical Oncology, ESMO, and the Turkish Geriatrics Society. Education and training: M.D., Uludağ University; residency in Internal Medicine, Marmara University; fellowship in Medical Oncology, Bezmialem Vakıf University.

Dr. Irfan Cicin is a Professor of Medical Oncology at the Trakya University Faculty of Medicine (2015–present). He has over 20 years of medical oncology experience and has held academic roles since 2010.

Education: MD, Istanbul University – Cerrahpaşa (1991–1997). Residency in Internal Medicine, Trakya University (1997–2002). Fellowship in Medical Oncology, Trakya University (2002–2004).

Practice: Medical Oncologist, Trakya University (2005–2008). Medical Oncologist, Elazığ Training and Research Hospital (2008–2010). Associate Professor of Medical Oncology, Trakya University (2010–2015). He previously served as a physician in the Turkish Air Force at Etimesgut Military Hospital (2004–2005).

Specializes in gastric cancer and oncological surgery, offering targeted treatments at Büyük Anadolu Hospitals.

• Expert in pancreatic and bile duct surgeries
• Performs bariatric and metabolic surgeries
• Skilled in colon and thyroid cancer procedures

Assoc. Prof. Ayşe İrem Yasin, M.D., is a medical oncologist who specializes in solid tumors. Her clinical focus includes breast, lung, gastrointestinal, gynecologic, and urologic cancers. She also treats brain and other CNS tumors, soft tissue sarcomas, head and neck cancers, adenocarcinomas, melanoma, Merkel cell carcinoma, and cancers of unknown primary. She practices at Medipol Acıbadem District Hospital (2025–present). She previously worked at Şişli Etfal Training and Research Hospital (2023–2025).

She completed a Medical Oncology fellowship at Bezmialem Vakıf University (2019–2022). This followed an Internal Medicine residency at the same institution (2012–2016). Her international experience includes the Breast Cancer Unit at the University of Piemonte Orientale in Novara (2022). She also trained at Basel University Hospital, Cleveland Clinic, and Harvard Medical School. She holds the ESMO Board Certificate (2022).

Dr. Muhammed Mustafa Atci is an Associate Professor of Medical Oncology at İstinye University, Liv Hospital Topkapı (2025–present). He previously served as Associate Professor and Education Coordinator at Prof. Dr. Cemil Taşcıoğlu City Hospital (2023–2025). He was also a Medical Oncologist there (2018–2021).

He has been a member of ASCO and the Turkish Society of Medical Oncology since 2018. He is the author or co-author of 19 peer-reviewed international papers on colon, breast, gastric, pancreatic, lung, thyroid, sarcoma, and colorectal cancers.

Notable works include a multicentre study on stage IIB colon cancer survival (Journal of Chemotherapy). He also studied the De Ritis ratio for lung metastasis in testicular cancer (Current Urology). His prognostic studies used PET/CT, MSI, lymph node ratio, and metabolic tumor volume.

Associate Professor Dr. Serap Kaya specializes in stomach cancer treatment at Emsey Hospital.

• Medical oncology specialization from Kocaeli University Faculty of Medicine
• Experienced in various hospitals including Marmara University Pendik Training and Research Hospital
• Has expertise in medical oncology with years of professional experience

1,100+ procedures performed – Dr. Derin specializes in gastrointestinal cancers at Liv Hospital Ulus.

• Author of 30+ scientific papers on malignancy treatment
• Member of European Society for Medical Oncology (ESMO)
• Associate Professor with extensive academic and clinical experience
• Expert in complex care of malignant neoplastic diseases

Specialized in radiation oncology at Marmara University – a key discipline for stomach cancer treatment.

• Graduated from Marmara University Faculty of Medicine
• Completed specialization training in radiation oncology
• Works at Emsey Hospital