Best Tumor Marker Blood Test Doctors Abroad

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

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.

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. 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.

Dr. Oguzhan Babacan is a pediatric hematologist-oncologist at Hisar Hospital Intercontinental in Istanbul. He specializes in bone marrow transplantation for children with leukemia and lymphoma. Dr. Babacan has performed allogeneic, autologous, and haploidentical stem cell transplants for 13 years. He treats rare blood disorders and solid tumors in pediatric patients.

• Performs complex bone marrow transplants for leukemia and lymphoma cases.
• Treats childhood blood disorders like thalassemia, hemophilia, and aplastic anemia.
• Expertise in pediatric oncology, including neuroblastoma and Ewing's sarcoma.
• Works at Hisar Hospital, a JCI-accredited facility in Turkey.

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

Dr. Eda Tanrikulu is a clinical oncologist at Anadolu Medical Center in Istanbul. She ranked 3rd nationally in Turkey's minor specialty medical exam. Dr. Tanrikulu specializes in chemotherapy and individualized cancer treatments. She works at a facility affiliated with the Johns Hopkins Hospital.

• Served as the head of the medical oncology unit at Haydarpaşa Numune Hospital.
• Participated in global training at Oxford University and ESMO in Manchester.
• Treats gastrointestinal, urological, lung, and breast cancers.
• Member of the American and European Societies of Medical Oncology.

Dr. Francesc Cobo Valien is a leading oncohematologist at the Teknon Oncology Institute in Barcelona. He specializes in treating complex blood cancers, including leukemia and lymphoma. Dr. Cobo Valien earned his medical degree and doctorate from the University of Barcelona. He serves patients at Centro Médico Teknon, a JCI-accredited facility.

• Treats acute and chronic leukemia, Hodgkin's lymphoma, and multiple myeloma.
• Performs bone marrow transplants and biological therapy for hematologic malignancies.
• Recipient of the Spanish Hematology Association award for medical reporting.
• Heads research projects supported by the Catalan Society of Hematology.

Dr. Tugba Akin Telli is a medical oncologist at Istanbul Florence Nightingale Hospital. She completed clinical research fellowships at Institut Jules Bordet in Belgium. Dr. Telli also gained experience at the MD Anderson Cancer Center in the US. She focuses on chemotherapy and immunotherapy for cancer patients.

• Trained at Hacettepe University and Marmara University Faculty of Medicine.
• Performs PET-MRI and immunohistochemistry for precise cancer diagnosis.
• Provides care at a JCI-accredited smart hospital in Istanbul.
• Treats patients using protocols from top European and American cancer centers.

The doctor is a highly qualified medical oncologist specializing in breast cancer across all clinical stages, including curative and palliative care. With a medical degree from the Pontificia Universidad Católica del Ecuador and a five-year residency at Hospital de la Santa Creu i Sant Pau, the doctor holds a Master's Degree in Medical Oncology from the Spanish Society of Medical Oncology (SEOM).

Currently practicing at the International Breast Cancer Center (IBCC) and IOB Institute of Oncology Barcelona, the doctor has extensive experience in Phase I clinical trials and research. Clinical expertise extends to neuroendocrine tumors, gynecological cancers, and immunotherapy for non-small cell lung cancer. The doctor is an active member of SEOM and ESMO.

Dr. Miquel Sans Cuffí is a gastroenterologist at Centro Médico Teknon in Barcelona. He is the author of over 150 publications and 500 conference presentations. Dr. Cuffí conducted research on inflammatory bowel diseases at Case Western Reserve University in Ohio. He treats complex conditions like Crohn's disease, ulcerative colitis, and Barrett's esophagus.

• Former member of the Scientific Committee for the European Crohn’s and Colitis Organisation.
• Served as coordinator for the European IBDChip research project.
• Member of the American Gastroenterological Association and the Spanish Association of Gastroenterology.
• Performs specialized procedures including stomach resection and laparoscopic anti-reflux surgery.

Dr. Sezer Saglam is a medical oncologist at Gayrettepe Florence Nightingale Hospital in Istanbul. He specializes in treating gastrointestinal and breast cancers. His research on rectal cancer timing has influenced global treatment protocols. Dr. Saglam develops personalized therapy plans using targeted medicine and precision techniques.

• Nominated for the International Best Researcher Award for work on liver cancer.
• Leads clinical trials focused on targeted therapies and precision oncology.
• Member of the American Society of Clinical Oncology (ASCO).
• Certified by the European Society for Medical Oncology (ESMO).

Dr. Pichai Kittipanyaworakul is an internal medicine specialist, gastroenterologist, and hepatologist at Intrarat Hospital in Bangkok. He holds a diploma in gastroenterology and hepatology from the prestigious Ramathibodi Hospital. Dr. Kittipanyaworakul treats digestive tract disorders and complex liver conditions. He works at Intrarat Hospital, an ISO-certified facility that treats over 100,000 patients annually.

• Performs specialized procedures including stomach resection, esophagectomy, and cholecystectomy.
• Provides diagnostic expertise in gastroscopy with biopsy, colonoscopy, and Fibroscan liver imaging.
• Manages laparoscopic anti-reflux surgery and laparoscopic gallbladder removal.
• Treats patients at a hospital with 26 departments and 200 resident physicians.

Dr. Ozlem Ozer Chakir is a gastroenterologist at Istanbul Florence Nightingale Hospital. She was named a Rising Star at the 10th Digestive Disease and Endoscopy Symposium. Her expertise covers complex liver diseases, Crohn's disease, and Barrett's esophagus. Dr. Chakir treats patients at Turkey's first JCI-accredited smart-and-green hospital.

• Holds certificates in bariatric endoscopy from Brazil and endoscopy from South Korea.
• Maintains membership in the European Society of Gastrointestinal Endoscopy.
• Specializes in ERCP as a member of the Turkish Society of Gastroenterology study group.
• Treats gastrointestinal polyps and ulcerative colitis using modern diagnostic tools.

Dr. Tahsin Ozadli is a medical oncologist at Valued Med Hub Hospitals in Istanbul. He specializes in the treatment of lung, breast, and gastrointestinal cancers. Dr. Ozadli holds a specialization from the Dr. Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital. He works at a center authorized by the Turkish government for international health tourism.

• Administers immunotherapy, targeted therapy, and chemotherapy for multiple cancer types.
• Treats complex conditions including sarcoma, medulloblastoma, and nasopharyngeal cancer.
• Performs diagnostic procedures including liver biopsies, thyroid biopsies, and cancer screenings.
• Utilizes PET/CT and MRI for precise abdominal and pelvic tumor tracking.

Dr. Baran Yil is a neurosurgeon at Valued Med Hub Hospitals in Istanbul. He completed a Cerebrovascular Research Fellowship at the Yale School of Medicine. Dr. Yil treats complex conditions like brain tumors, aneurysms, and spinal stenosis. He specializes in both adult and pediatric neurosurgery.

• Winner of the Young Neurosurgeon Encouragement First Prize.
• Served as an instructor for the skull base anatomy course series.
• Member of the Turkish Neurosurgery Association and AOSpine.
• Performs specialized procedures including Gamma Knife and deep brain stimulation.

Dr. Murat Atay is a breast and general surgeon at Istanbul Florence Nightingale Hospital. He completed specialized training in sentinel node mapping at the MDA Cancer Center in Texas. Dr. Atay also held several surgical roles at Lille University Hospital in France. He focuses on breast and thyroid surgery as well as oncological procedures.

• Performs mastectomy, lumpectomy, and lymphadenectomy.
• Treats conditions such as breast cancer and fibrocystic breast disease.
• Practices at a JCI-accredited smart hospital that treats 300,000 patients annually.
• Uses PET-MRI and mammography for precise diagnosis and monitoring.