Best Tumor Marker Blood Test Doctors in Istanbul, Turkey — TOP 88

Professor Bulent Karagoz specializes in tumor biology and immunology. He provides expert oversight for tumor marker blood tests at Anadolu Medical Center.

• Former Head of Internal Diseases at Istanbul Okan University – one of Turkey's top medical schools
• Authored over 40 scientific publications focused on tumor biology and immunotherapy
• Completed specialized training in flow cytometry – a technique used to identify and count specific cells
• Member of the Turkish Medical Oncology Association and European Head and Neck Society
• Trained in clinical research ethics through the Turkish Ministry of Health

Dr. Abdulcabbar Kartal is a European Board-certified surgeon at Anadolu Medical Center. He uses tumor marker blood tests to help identify gastrointestinal and colorectal cancers.

• Certified Fellow of the European Board of Surgery (FEBS–C)
• Specializes in Hyperthermic Intraperitoneal Chemotherapy for advanced metastatic cancers
• Completed advanced training in surgical endoscopy and interventional endoscopic procedures
• Associate Professor title awarded by Istanbul Okan University
• Member of the European Society of Coloproctology

Dr. Cem Iyibozkurt is a gynecologic oncologist at Istanbul Florence Nightingale Hospital. He specializes in robotic-assisted surgery and minimally invasive oncology. He holds a PhD in Molecular Medicine. Dr. Iyibozkurt trained at the University of Oxford and Florida Hospital. He is a primary practitioner of robotic gynecologic procedures in Turkey.

• Certified by the European Society of Gynaecological Oncology (ESGO).
• Performed hundreds of minimally invasive procedures for gynecologic cancers.
• Maintains membership in the Turkish Society of Gynecologic Oncology.
• Practices at a JCI-accredited hospital that treats 300,000+ patients annually.

Dr. Omur Gokmen Sevindik is a hematologist at Istanbul Florence Nightingale Hospital. He completed a fellowship at the Mayo Clinic, a top-ranked medical center in the US. Dr. Sevindik specializes in treating blood cancers like leukemia and lymphoma. He works at a JCI-accredited facility that treats 300,000 patients annually.

• Performs allogeneic and haploidentical stem cell transplantations.
• Authored 18 articles in international peer-reviewed journals.
• Presented research findings at over 25 international scientific conferences.
• Treats complex conditions including myeloma, aplastic anemia, and thrombocytopenia.

Dr. Sami Sokucu is an orthopedic surgeon and oncologist at VM Medical Park Florya Hospital. He specializes in limb lengthening and complex bone deformity correction. Dr. Sokucu is a Fellow of the European Board of Orthopaedics and Traumatology (FEBOT). He also serves as a faculty member at Istanbul Aydın University.

• Performs robotic knee replacement and minimally invasive hip arthroplasty.
• Expert in using magnetic bone nails and motorized systems for limb lengthening.
• Treats orthopedic cancers including osteosarcoma and malignant bone tumors.
• Member of the Turkish Society of Orthopaedic Surgery and Traumatology.

Dr. Ceyhun Bozkurt is a pediatric hematologist-oncologist at Medical Park Bahcelievler Hospital. He serves as the clinical director and vice director of the stem cell transplant unit. Dr. Bozkurt focuses on childhood leukemia, bone marrow transplants, and neuroblastoma. He completed specialized observerships at Harvard University and Cincinnati Children's Hospital.

• Member of the International Society of Pediatric Oncology (SIOP).
• Active member of the European Bone Marrow Transplant Group (EBMT).
• Published more than 40 articles on stem cell therapy and blood disorders.
• Works at a center performing the highest number of transplants in Turkey.

Dr. Sezer Sağlam is a medical oncologist at Gayrettepe Florence Nightingale Hospital in Istanbul. He specializes in gastrointestinal oncology and the treatment of liver cancer. Dr. Sağlam was nominated for the International Best Researcher Award for his work on liver-transplanted patients. He has served as a professor of medical oncology since 2016.

• Member of the European Society for Medical Oncology (ESMO).
• Active member of the American Society of Clinical Oncology (ASCO).
• Member of the European Neuroendocrine Tumor Society (ENETS).
• Works at JCI-accredited facility with advanced PET-MRI and radiology departments.

Dr. Ayshe Okumush is a radiation oncologist at Private NeoLife Medical Center. She earned her MD from Karadeniz Technical University in 2003. She completed a residency in radiation oncology at Sisli Etfal Training and Research Hospital from 2006 to 2011.

She served as a specialist at Diyarbakir Uckuyular Training and Research Hospital from 2011 to 2013 and at Sisli Etfal from 2013 to 2016. She then worked at Yeni Yuzyil University Private Gaziosmanpasa Hospital from 2016 to 2026. She joined NeoLife in 2026.

Memberships: Turkish Society for Radiation Oncology (TROD) and the European Society for Radiotherapy and Oncology (ESTRO). Clinical focus: SRS, SRT, SBRT; VMAT, IMRT; radiotherapy for head and neck, lung, and brain tumors; SGRT, TBI, and 3D brachytherapy.

Dr. Mehmet Salih Iyikesici is a medical oncologist. His work focuses on metabolically supported chemotherapy (MSCT), ketogenic diet–supported cancer care, hyperthermia, hyperbaric oxygen therapy, and insulin potentiation therapy. He emphasizes care for breast, pancreatic, and gastric cancers.

He is a Medical Oncology Specialist at Neolife Medical Center (2026–present). He previously served at Private Bahçelievler Medical Park (2013–2026), Medicana Beylikdüzü (2010–2013), Silivri Anadolu (2009–2010), Diyarbakır Training and Research (2008–2009), and Bursa Çekirge State (2006–2008). Earlier, he worked as an Internal Medicine Specialist (1997–2003). He was an Assistant Professor at Altınbaş University (2014–2026).

Training: Medical Oncology subspecialty, Marmara University (2003–2006). Internal Medicine, Istanbul Haydarpaşa Numune (1992–1996). Medicine, Uludağ University (1985–1990). Member, Medical Oncology Association (since 2004). His recent research (2019–2020) covers gastric, breast, pancreatic, and lung cancers. Topics include long‑term survival in metastatic pancreatic cancer and feasibility in metastatic non‑small cell lung cancer (NSCLC).

Dr. Sinan Karaaslan is a medical oncologist at Anadolu Medical Center. He uses tumor marker blood tests to monitor breast, colorectal, and urogenital cancers.

• Trained at Istanbul University – one of Turkey's most prestigious medical schools
• Former oncology expert at the Gülhane Military Medical Academy
• Specializes in systemic therapies including immunotherapy and targeted therapy
• Care focuses on lung, liver, pancreatic, and stage 4 colon cancers
• Member of the Turkish Medical Oncology Society and Turkish Lung Cancer Society

Dr. Tarik Akar is an award-winning specialist at Hisar Hospital Intercontinental. He focuses on the early detection and treatment of gastrointestinal cancers.

• Winner of the Best Verbal Presentation Award at the International Gastrointestinal System Cancers Congress
• Uses gastroscopy and colonoscopy with biopsies for precise tumor marker blood test follow-ups
• Performs ESD to remove early-stage esophageal and colon cancers without major surgery
• Published 25 research papers on digestive system disorders in international medical journals
• Member of the medical team at JCI-accredited Hisar Hospital Intercontinental

Professor Serkan Keskin ranked first in Turkey in the 2012 Medical Oncology Proficiency Exam. He currently leads oncology services at Memorial Şişli Hospital in Istanbul.

• Uses tumor marker blood tests to identify specific cell molecules for precise cancer detection
• Winner of the Best Poster Award at the 19th National Cancer Congress
• Specializes in immunohistochemistry to pinpoint cancer origins for gastrointestinal and breast cancers
• Active member of the American Society of Clinical Oncology (ASCO)
• Member of ESMO, the leading European body for medical oncology standards

Dr. Mustafa Solak is a clinical oncologist at Hisar Hospital Intercontinental. He completed advanced fellowship training at the Hacettepe University Cancer Institute.

• Trained at the University of Texas MD Anderson Cancer Center in the USA
• Interprets tumor marker blood test results for lung, breast, and ovarian cancers
• Specializes in evaluating gastrointestinal malignancies including stomach and colon cancer
• Expert in systemic treatments for complex solid tumors and hematological conditions
• Uses evidence-based therapies to monitor cancer stages and treatment response

Assistant Professor Suleyman Hilmi Aksoy leads advanced imaging at Hisar Hospital Intercontinental. He specializes in interventional radiology to ensure high accuracy for your tumor marker blood test results.

• Holds a residency in Radiodiagnostics and Interventional Radiology from Istanbul University Cerrahpasa Medical Faculty
• Member of the European Society of Radiology which sets high diagnostic standards
• Performed research presentations at thirteen national and international medical congresses
• Provides expertise in whole-body CT and MRI scans for secondary cancer screening
• Former Chief Assistant at the prestigious Cerrahpasa Medical Faculty radiology department

Professor Yesim Yildirim is an ESMO-certified oncologist at Anadolu Medical Center. She specializes in immunotherapy and targeted therapies that identify specific cancer cell markers.

• Founder of the Turkish Gastrointestinal Oncology Network
• Trained in immunology at the Hans Wyder Fellowship in Switzerland
• Completed advanced oncology tuition at the Rambam Medical Center in Israel
• Authored over 80 scientific works including textbooks on precision medicine
• Member of the American Society of Clinical Oncology (ASCO)

Dr. Savas Kansoy is a pediatric hematologist and oncologist at Anadolu Medical Center. He founded Turkey’s first pediatric bone marrow transplantation units. Dr. Kansoy treates children with leukemia, lymphoma, and aplastic anemia. He is a primary contributor to national stem cell transplant registries.

• Founded pediatric oncology and bone marrow transplant clinics across major Turkish hospitals.
• Performs haploidentical, allogenic, and autologous stem cell transplantations.
• Served as a board member of the Turkish Society of Hematology.
• Works at Anadolu Medical Center, an affiliate of the Johns Hopkins Hospital.

Dr. Sebnem Izmir Guner is a hematologist at Hisar Hospital Intercontinental in Istanbul. She founded and directed multiple adult bone marrow transplantation centers. Dr. Guner specializes in leukemia, lymphoma, and complex coagulation disorders. She works at a JCI-accredited facility recognized for high safety standards.

• Performs haploidentical, related, and unrelated allogenic bone marrow transplants.
• Authored over 19 articles in international peer-reviewed journals.
• Received multiple academic awards for her contributions to hematology.
• Former founder and lead physician of therapeutic apheresis units.

Assoc. Prof. Dr. Heves Sürmeli is a specialist in Internal Medicine and Medical Oncology. She received her medical degree (M.D.) from Eskişehir Osmangazi University in 2004. She completed her Internal Medicine residency at Kartal Dr. Lütfi Kırdar Training and Research Hospital, Istanbul (2005–2010). She then completed subspecialty training in Medical Oncology at the same hospital (2014–2017).

At the same center, she served as a Medical Oncology Specialist (2017–2023). She then worked as Administrative and Clinical Director (2023–2026). Her clinical interests include breast, lung, gynecologic, gastrointestinal, and urologic cancers.

She has published many articles in international peer‑reviewed journals. She has presented at national and international conferences. She is active in professional societies. She has received several awards.

Professor Omer Necip Aytug is a senior gastrointestinal specialist at Hisar Hospital Intercontinental. He uses tumor marker blood tests to help screen for digestive cancers and monitor chronic conditions.

• Earned the rank of Professor at Abant Izzet Baysal University
• Completed a specialized gastroenterology fellowship at Marmara University School of Medicine
• Performs advanced diagnostic gastroscopy and colonoscopy to investigate abnormal lab results
• Authored numerous scientific papers on digestive health in international medical journals
• Member of the medical faculty at Duzce University