Best Tumor Marker Blood Test Doctors Worldwide — TOP 217

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. 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

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. Tanrikulu ranked 3rd nationwide in Turkey's medical specialty exam. She provides tumor marker blood tests at Anadolu Medical Center to guide personalized cancer care.

• Former Head of Medical Oncology at Haydarpaşa Numune Training and Research Hospital
• Lead researcher for many international clinical trials on new cancer therapies
• Specializes in matching therapies to the unique genetic profiles of tumors
• Completed advanced training at Oxford and Manchester in the United Kingdom
• Member of the European and American Societies of Medical Oncology

Dr. Zulfu Sertkaya is an associate professor and andrologist at Andro Expertise in Istanbul. He holds the FEBU title from the European Association of Urology. Dr. Sertkaya focuses on male health, sexual function, and aesthetic urological procedures. He treats patients at his clinic and performs surgeries at affiliated hospitals.

• Earned Fellow of the European Board of Urology (FEBU) status.
• Specialize in andrology, male sexual health, and aesthetic urology.
• Performs penile implant surgery and varicocelectomy for infertility.
• Works at a clinic accredited by the Turkish Medical Association.

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

Prof. Dr. Markus Heuser leads urology at the Medical Center in Solingen. He specializes in identifying and treating tumors of the prostate, bladder, and kidneys.

• Received the August Kürten Prize for his research in uro-oncoloy
• Author of over 40 scientific publications in peer-reviewed journals
• Uses tumor marker blood tests to monitor complex cancers during treatment
• Member of the Society of Urologic Oncology and European Association of Urology
• Former best lecturer for urology modules at the University of Göttingen

Dr. Agusti Barnadas Molins is the chief breast cancer specialist at Teknon Oncology Institute in Barcelona. He has directed more than 70 research projects on breast cancer and gynecological oncology. Dr. Barnadas Molins treats tumors using chemotherapy, gland therapy, and immunotherapy. He practices at JCI-accredited Centro Médico Teknon.

• Authored over 130 original scientific articles on clinical oncology.
• Served as General Secretary of the Spanish Medical Oncology Society.
• Former President of the Catalan-Balearic Oncology Society.
• Founder and Vice President of the Spanish Breast Cancer Research Group.

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.

Professor Christoph Zielinski leads the Vienna Cancer Center. He uses tumor marker blood tests to develop personalized immunotherapy and targeted treatments for cancer.

• Medical Director of the International Oncology Center at Wiener Privatklinik
• Founder and Director of the Comprehensive Cancer Center Vienna
• Authored over 600 scientific papers on tumor biology and breast cancer
• President of the Central European Cooperative Oncology Group
• Member of the American Society for Clinical Oncology

Dr. Manuela Seifert heads the Breast Cancer Center at Academic Hospital Solingen. She integrates tumor marker blood tests into early diagnostics and aftercare for breast diseases.

• Specializes in breast cancer diagnostics using 3D mammography and high-precision ultrasound
• Member of the German Society of Senology – experts in breast health and disease
• Performs sentinel lymph node biopsies to check for the spread of cancer
• Trained at Heinrich-Heine-University – one of Germany's most established medical faculties
• Directed the specialized Breast Clinic in Solingen as head physician since 2016

Dr. Andreas Sesterhenn is the Chief Physician of Otolaryngology and Plastic Surgery at Solingen Clinic. He specializes in tumor removal for the head, neck, and upper airways. Dr. Sesterhenn uses robotic systems for interventions through incisions as small as 1 cm. Developed expertise in surgical medicine through training in the USA and Germany.

• Performs endoscopic operations through the nose to treat complex tumors.
• Author of over 75 scientific publications in the field of head and neck surgery.
• Treats larynx, thyroid, and tongue cancer using tumor-sparing techniques.
• Works at Solingen Clinic, ranked among the top hospitals in Germany by Focus magazine.

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. Mehmet Guler is a professor and general surgeon at Medical Park Antalya Hospital Complex. He specializes in bariatric and metabolic surgery for obesity and type 2 diabetes. Dr. Guler uses the Da Vinci robotic system for precise gastric sleeve and bypass procedures. He holds a Master's degree in Health Law and a degree in Public Administration.

• Member of the Turkish Society for Obesity Surgery and the World Association of Laparoscopic Surgery.
• Performs robotic-assisted gastroectomy and endoscopic sleeve gastroplasty.
• Treats complex gastrointestinal conditions including Crohn’s disease and ulcerative colitis.
• Practices at the largest private hospital in the Mediterranean region.

Dr. Ronit El Hasid leads the Pediatric Oncohematology and Oncology department at Dana Dwek Children's Hospital. She uses tumor marker blood tests to monitor cancers like leukemia and neuroblastoma.

• Specializes in bone marrow and stem cell transplants for children with blood disorders
• Completed over 300 successful transplantations – providing deep insight into complex pediatric cases
• Experienced in newer treatments including CAR T-cell therapy and specialized immunotherapy
• Published 50 scientific papers in medical journals on pediatric oncology and transplantation
• Member of the American Association for Hematology and the Israeli Society for Pediatric Hematooncology

Dr. Camel Kopty is a senior oncologist at Wiener Privatklinik with specialized expertise in hematology. He interprets tumor marker blood tests to monitor treatment progress for solid tumors and blood cancers.

• Graduated from the Medical University of Vienna – a top-ranked European medical school
• Specializes in systemic therapies including targeted therapy and immunotherapy
• Performs diagnostic gastroscopies and colonoscopies with biopsies to check for malignancies
• Focuses on both solid tumors and hematologic malignancies like leukemia and lymphoma
• Conducts physical and laboratory screenings for precise cancer diagnosis and staging

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. Amos Toren is a pediatric hemato-oncologist at Sheba Medical Center. He served as Director of the Pediatric Hemato-Oncology and Bone Marrow Transplant Division. Dr. Toren holds a PhD in Human Genetics. He specializes in CAR T-cell therapy and bone marrow transplantation for children. Forbes Israel has recognized his expertise in hematology.

• Served as the Head of the Hematology Division at Tel Aviv University.
• Treats complex cases of leukemia, lymphoma, and rare pediatric cancers.
• Member of the American Society of Hematology and European Group for Blood and Marrow Transplantation.
• Collaborates on research with the NIH and St. Jude Children’s Research Hospital.

Dr. Tuncay Tas is a urological surgeon at Safe Urology in Istanbul. He has performed 5,000+ operations throughout his career. Dr. Tas completed fellowship training at Heidelberg University in Germany. He specializes in penile aesthetic surgery and regenerative medicine applications.

• Specialist in penile lengthening, thickening, and prosthesis applications.
• Introduced stem cell and exosome injections for male health to Turkey.
• Instructs global medical professionals in regenerative medicine at ISSCA.
• Treats complex conditions like azoospermia and Peyronie's disease.

Dr. Mehmet Karaca is a professor of gynecology and obstetrics at Medical Park Antalya. He holds a minor degree in gynecological oncology surgery from the Ministry of Health. Dr. Karaca treats complex female cancers, high-risk pregnancies, and infertility issues. He performs surgical procedures at the largest private hospital in Turkey's Mediterranean region.

• Specializes in laparoscopic surgery for uterine fibroids, ovarian cysts, and endometriosis.
• Performs radical cancer surgeries including the Wertheim procedure and cytoreductive debulking.
• Expert in in vitro fertilization and urogynecology treatments.
• Former clinical chief at Antalya Training and Research Hospital.