Best Tumor Marker Blood Test Doctors Abroad

Professor Wolfgang Köstler is the Deputy Head of Oncology at the Medical University of Vienna. He uses tumor marker blood tests to design precision oncology plans for his patients.

• Trained at Memorial Sloan–Kettering Cancer Center in the USA
• Specializes in molecular oncology to identify specific cancer biomarkers
• Former Head of Oncology at the Regional Hospital Wiener Neustadt
• Expert in targeted therapy and immunotherapy for solid tumors
• Degree in molecular biology from the Weizmann Institute of Science

Professor Walter Klepetko directs thoracic surgery at the Medical University of Vienna. He specializes in advanced thoracic oncology and tumor marker blood test evaluation.

• Heads the Lung Transplantation Program at Vienna General Hospital (AKH)
• Directs the Department of Thoracic Surgery at the Medical University of Vienna
• Specializes in complex lung cancer and thymoma – tumors of the thymus gland
• Co-developed extracorporeal membrane oxygenation – a technique for external blood oxygenation and heart-lung support
• Completed advanced fellowships at Toronto General and Massachusetts General Hospital

Dr. Viola Fox is the Chief Physician at the Clinic for Oncology in Solingen. She is a leading expert in drug therapy for tumors in Germany and Europe. Dr. Fox holds a qualification in specialist genetics and conducts molecular biology research. She treats complex cases at a certified interdisciplinary cancer center.

• Member of the American Association for Cancer Research.
• Specializes in immunotherapy, targeted therapy, and molecular diagnostics.
• Treats hematological diseases, including lymphoma, leukemia, and myeloma.
• Works at Städtisches Klinikum Solingen, a clinic ranked among the top in Germany.

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. 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. Séverine Iborra is the Chief Physician of Gynecology and Obstetrics at the Medical Center in Solingen. She specializes in gynecological oncology and high-risk perinatal medicine. Dr. Iborra uses the Da Vinci robotic system for minimally invasive cancer surgeries. She is a certified specialist in cervical pathology and urogynecology.

• Performs robotic hysterectomies and myomectomies with high precision.
• Treats complex cancers of the breast, ovaries, and cervix.
• Certified by the Gynecological Oncology Working Group in diagnostics and therapy.
• Leads a department at a clinic ranked among the top in Germany by Focus magazine.

Dr. Peter Schenker is the Chief Surgeon at the Medical Center in Solingen. He specializes in gastrointestinal oncology and pancreatic surgery. He formerly served as the Chief Surgeon at Germany’s first certified colorectal cancer center. Dr. Schenker focuses on robotic and minimally invasive surgical methods. He treats complex conditions like Barrett's esophagus and Crohn's disease.

• Chief Surgeon of the Department of Surgery at the Academic Hospital Solingen.
• Served as the Coordinator of the Pancreatic Cancer Center (Oncocert).
• Member of the German Medical Association and scientific journal expert.
• Specializes in hernia surgery and pancreatic transplantation.

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.

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. Kodchanut Litleaungdej is a hematologist at Intrarat Hospital in Bangkok. She specializes in the treatment of leukemia, myeloma, and complex lymphomas. Dr. Litleaungdej co-authored a clinical risk prediction model for cancer-associated venous thromboembolism. She graduated with second-class honors from Naresuan University before completing a hematology fellowship at Thammasat University.

• Performs bone marrow transplantation and CAR T-cell therapy.
• Treats blood disorders including aplastic anemia and thrombocytopenia.
• Provides chemotherapy and biological therapy for hematologic malignancies.
• Works at ISO-certified Intrarat Hospital, which treats 100,000 patients annually.

Dr. Kenan Kapici is a neurosurgeon at Valued Med Hub Hospitals in Istanbul. He specializes in spine surgery and complex brain tumor removal. Dr. Kapici served as the Head of the Neurosurgery Department at Altinbas University. He has held senior leadership roles at Kasımpaşa Marine Hospital and GATA Haydarpaşa Training Hospital.

• Performs deep brain stimulation (DBS), discectomy, and brain aneurysm repair.
• Treats pediatric conditions including hydrocephalus and spina bifida.
• Is a member of the Spine Society of Europe and the Turkish Neurosurgery Association.
• Completed specialized training in microsurgery and neuroanatomy.
• Works at a clinic holding an International Health Tourism Authorization Certificate.

Dr. Sven Propson is the chief physician of pediatrics at the Academic Hospital Solingen. He is a recognized expert in neonatology and pediatric cardiology in Germany and Europe. He specializes in intensive care and emergency medicine for infants and adolescents. Dr. Propson conducts research to implement the latest pediatric treatments in his department.

• Served as a lead physician at the Leverkusen Clinic for over 10 years.
• Managed the pediatric intensive care unit at a major German medical center.
• Is an expert reviewer for international scientific journals.
• Member of the German Association of Physicians.

Dr. Saban Sec is a medical oncologist at Valued Med Hub Hospitals in Istanbul. He treats breast, lung, gastrointestinal, and rare tumors. Dr. Sec currently represents specialist physicians in the Turkish Medical Oncology Association. He conducted a significant clinical study involving 138 patients with HER2-positive gastric cancer.

• Expertise covers colorectal, prostate, urogenital, head, neck, and salivary gland cancers.
• Authored over 10 peer-reviewed articles on cancer prognosis and survival rates.
• Member of the Istanbul Medical Chamber and the Turkish Medical Oncology Association.
• Treats patients at a clinic holding the International Health Tourism Authorization Certificate.

Dr. Shencan Acar is a gastroenterologist at Istanbul Florence Nightingale Hospital. She focuses on hepatology and liver disease management. Dr. Acar specializes in inflammatory bowel diseases like Crohn’s and ulcerative colitis. She previously served as the Head of Department at Giresun University Faculty of Medicine.

• Authored over 20 international peer-reviewed articles.
• Expert in managing complex post-transplant gastrointestinal complications.
• Treats rare conditions like aortoesophageal fistulas and massive hemorrhagic ascites.
• Performs endoscopic interventions for acute gastrointestinal bleeding.

Dr. Fredi Aviv is a senior oncohematologist at the Sourasky Medical Center. He specializes in blood cancers and diagnostic testing.

• Treats patients at Sourasky Medical Center (Ichilov), Israel's leading multi-disciplinary hospital
• Focuses on oncohematology – the diagnosis and treatment of cancers of the blood
• Expert in interpreting blood tests for bone marrow and lymphatic system disorders
• Part of a top-tier medical team at a major university-affiliated center

Dr. Benal Buyukgebiz is a pediatrician and gastroenterology specialist at Istanbul Florence Nightingale Hospital. She served as the Chair of the Department of Pediatrics at Yeditepe University. Dr. Buyukgebiz treats complex digestive conditions in children, including Crohn's disease and ulcerative colitis. She works at a JCI-accredited facility that treats 300,000 patients every year.

• Former President of the Phenylketonuria Children Screening and Protection Association, İzmir Branch.
• Maintains membership in the European Metabolic Group and the Liver Research Society.
• Specializes in pediatric nutrition and the management of chronic gastritis and cirrhosis.
• Performs diagnostic procedures including gastroscopy with biopsy and colonoscopy.

Dr. Joseba Rebollo Liceaga is a clinical oncologist at Quirónsalud Alicante. He focuses on personalized cancer treatments and gene-based therapies for metastatic breast cancer. Dr. Rebollo Liceaga teaches as a professor of Multidisciplinary and Personalized Oncology. He treats various conditions, including prostate, colon, and thyroid cancers.

• Former Head of Oncology at Clínica San Miguel and Hospital General de Villalba.
• Researches electrochemotherapy and multidisciplinary approaches for complex cases.
• Practices at JCI-accredited Quirónsalud Torrevieja, a leading center in southeastern Spain.
• Expert in diagnostics using PET-CT, mammography, and tumor marker blood tests.

Dr. Yusuf Acikgoz is a medical oncologist at Lokman Hekim University Ankara Hospital. He specializes in treating complex cancers, including lung, breast, and liver malignancies. He completed a fellowship at Ohio State University in the United States. Dr. Acikgoz manages treatments like chemotherapy, radioembolization, and immunotherapy.

• Member of the American Society of Clinical Oncology (ASCO).
• Assistant Investigator for Phase III clinical trials, including the CheckMate-649 study.
• Certified in Good Clinical Practice and Human Subjects Protection at Ohio State University.
• Performs diagnostic procedures like biopsy, gastroscopy, and tumor marker testing.

Dr. Hughes Hyun is a board-certified surgeon at Sourasky Medical Center. He uses his surgical expertise to lead precise diagnostic evaluations.

• Practices at Sourasky Medical Center – one of Israel's top hospitals
• Certified by the medical board in surgery
• Specializes in minimally invasive techniques for accurate diagnosis
• Performs robotic-assisted procedures for complex cases
• Collaborates with lab teams for precise tumor marker blood test analysis

Dr. Nichakorn Seehirunwong is a diagnostic radiologist at Intrarat Hospital in Bangkok. She specializes in interpreting medical imaging results and informing complex treatment plans. Dr. Seehirunwong earned her medical degree from the Prince of Songkla University. She also completed her diagnostic radiology certification at the same institution.

• Performs imaging-guided procedures and radiation oncology treatments.
• Treats pediatric oncology cases including neuroblastoma and Wilms tumor.
• Provides diagnostic support for brain tumors, sarcomas, and lymphomas.
• Works at Intrarat Hospital, an ISO 9001:2015-certified facility in Thailand.