Professor of Medical Oncology with 29 years of experience specializing in gastrointestinal cancers at Florence Nightingale Hospital.

• Attending physician in Gastrointestinal Oncology since 2005
• Fellowship-trained at Istanbul University Oncology Institute
• Member of ESMO, ASCO, and European Neuroendocrine Tumor Society
• Professor since 2016 with ongoing clinical practice

Dr. Tahsin Ozadli specializes in stomach cancer at Valued Med Hub Hospitals, with expert training in medical oncology.

• Trained at Dr. Abdurrahman Yurtaslan Ankara Oncology Hospital
• Specializes in gastrointestinal cancers including stomach cancer
• Experienced in both diagnosis and treatment planning
• Member of oncology research community with published work

Dr. Sec is a specialist in gastrointestinal cancers with a focus on innovative treatment protocols at Valued Med Hub Hospitals.

• Over 14 years of experience dedicated to medical oncology with a focus on stomach cancer
• Active member of Turkish Medical Oncology Association
• Published research on prognostic factors in gastric cancer treatments
• Part of a team managing complex cases with personalized approaches

Dr. Yildiz brings over a decade of specialized experience in oncology to Medipol Mega University Hospital, with a strong focus on research.

• Focuses on the diagnosis and treatment of digestive system cancers
• Has published extensively on rare cancer types in international journals
• Investigates complex cases and their unusual symptoms
• Member of a research team at a leading university hospital

Associate Professor Tahsin Ozatli specializes in breast, lung, and gastrointestinal cancers at Istinye Liv University Hospital.

• Over 2016 years of experience of oncology experience across Turkey
• Specialized in gastrointestinal cancers at Ankara Oncology Clinic
• Promoted to Associate Professor in 2016
• Trained at Selcuk University Faculty of Medicine

Associate Professor Dr. Yusuf Acikgoz brings expertise from Ohio State University and active involvement in international clinical trials for stomach cancer.

• Specialized in Medical Oncology with training at Ankara Numune Training and Research Hospital
• Assistant investigator in Phase III CheckMate-649 and Fortitude-101 studies
• Member of American Society of Clinical Oncology (ASCO) and Turkish Society of Medical Oncology
• Certified in Good Clinical Practice and Human Subjects Protection

Dr. Alemdar specializes in stomach cancer treatment with over 20 years of experience of experience in oncology, trained at Akdeniz University.

• Board-certified in Medical Oncology since 2018
• Extensive experience at Akdeniz University Hospital
• Works at Medical Park Antalya Hospital Complex

Specialized in laparoscopic surgery for stomach cancer – trained at Istanbul University, one of Turkey's top medical schools.

• Board-certified general surgeon with over 16 years of experience of experience
• Advanced training in laparoscopic bariatric and oncological cancer surgery
• Expertise in minimally invasive techniques for better patient recovery

Assoc. Prof. Nail Paksoy brings 15 years of experience of oncology expertise to Medipol Bahcelievler Hospital, with a focus on advanced gastrointestinal cancers.

• ESMO Board Certified in Medical Oncology – one of Europe's top certifications
• Completed fellowship at Istanbul University Oncology Institute
• Participated in multiple international clinical trials for stomach cancer treatments
• Published research on FLOT regimen for metastatic gastric cancer

Dr. Ercan Ozden specializes in stomach cancer treatment with over 27 years of experience of experience in internal medicine and oncology.

• Board-certified in medical oncology from Kocaeli University
• Trained at Istanbul University – one of Turkey's top medical schools
• Has managed complex stage 2 stomach cancer cases

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.

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).

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.

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).

Specializes in gastric cancer surgery with broad expertise in oncological and bariatric procedures at BAH International.

• Skilled in pancreatic and bile duct surgeries
• Focuses on minimally invasive techniques
• Experienced in advanced obesity and diabetes surgeries

Assist. Prof. Meltem Topalgokceli Selam specializes in gastrointestinal system cancers at Liv Hospital Ulus, with a strong focus on patient-centered care.

• Holds a position in the Department of Medical Oncology at Liv Hospital
• Member of the Turkish Medical Oncology Society
• Published multiple international and national research papers
• Trained at Istanbul Faculty of Medicine, one of Turkey's leading institutions

Specializing in gastrointestinal cancers at Biruni University Hospital, Dr. Turkan Ozturk Topcu has trained at MD Anderson Cancer Center and Sunnybrook Odette Cancer Center.

• Over 16 years of experience of experience in medical oncology
• Memberships in ESMO, ASCO, and Turkish Society of Medical Oncology
• Special interest in stomach cancer treatment and research

Prof. Kayihan Engin brings 41 years of experience of radiation oncology experience to stomach cancer care, including research at the US National Cancer Institute.

• Completed fellowship in thermoradiotherapy at Thomas Jefferson University
• Former chairman of Radiation Oncology at Uludağ University
• Directs oncological sciences at Medicana Bursa Hospital
• Trained in occupational cancer risk assessment at NIH