Best Tumor Marker Blood Test Doctors Abroad

Dr. Liu Shi Xin is the Vice Chairman of the Radiation Oncology Branch of the Chinese Medical Association. He serves as the Discipline Leader of the Oncology Center at Xiamen Humanity Hospital. Dr. Liu specializes in precision radiotherapy for thoracic and abdominal cancers. He is a recipient of the State Council Special Government Allowance for his medical contributions.

• Highly proficient in IMRT, VMAT, and SBRT for lung and esophageal cancers.
• Former President of Jilin Provincial Cancer Hospital.
• Awarded the National Famous Doctor honor for outstanding contributions to oncology.
• Holds leadership roles in the Chinese Anti-Cancer Association particle therapy committee.

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. Rana Niftaliyeva is an oncologist-mammologist at the Biological Medicine Integrative Health Center in Baku. She specializes in breast cancer treatment and precancerous mammary gland diseases. Dr. Niftaliyeva has participated in medical conferences across Azerbaijan, Germany, and Turkey. She focuses on integrative approaches to cancer care.

• Treats large breast cysts using non-surgical aspiration techniques.
• Provides mistletoe therapy and high-dose vitamin C cancer treatments.
• Manages side effects of chemotherapy and radiation through supportive care.
• Performs biopsies and hormonal therapy for various oncological conditions.

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.

Professor Onder Surgit is a senior cancer surgery specialist at Optimed Health Group. He provides expert oversight for tumor marker blood tests within the general surgery clinic.

• Trained at Hacettepe Faculty of Medicine – one of the most prestigious medical schools in Turkey
• Instructor surgeon at the Advanced Medical Technologies Training Center
• Former faculty member at Turgut Ozal University Faculty of Medicine
• Expert in laparoscopic and bariatric surgery techniques
• Served as a medical faculty member at Atilim University

Dr. Arzu Guliyeva is a gastroenterologist at the Biological Medicine Integrative Health Center in Baku. She specializes in manageing chronic inflammatory conditions like Crohn's disease and ulcerative colitis. Dr. Guliyeva completed specialized training at Ege University and Sisli Etfal Hospital in Turkey.

• Treats precancerous gastrointestinal tract conditions and chronic autoimmune diseases.
• Uses serum ozonation and PRP-CGF techniques for metabolic and digestive disorders.
• Completed international training in Germany, Switzerland, and Russia on bioregulatory medicine.
• Works at a center that treats over 80,000 patients annually.

Dr. Viktor Alexander Krol is the Chief Physician of Gastroenterology and Internal Medicine at St. Martinus-Krankenhaus Düsseldorf. He also directs a certified Obesity Treatment Center. Dr. Krol treats complex diseases of the digestive tract, metabolism, and respiratory system. He works at one of only two German clinics accredited by the International Federation of Obesity.

• Performs bariatric surgeries and endoscopic weight loss procedures.
• Treats gastrointestinal conditions like pancreatitis, Crohn's disease, and cirrhosis.
• Manages internal medicine cases across cardiology, diabetology, and nephrology.
• Uses diagnostic tools including gastroscopy with biopsy and endosonography.

Professor Johannes Drach authored over 120 papers on cancer detection. He leads the Josefstadt Private Clinic where tumor marker blood tests assist in monitoring oncological health.

• Trained at MD Anderson Cancer Center in Houston – a world leader in oncology
• Expert in blood cancers – treats leukemia, myeloma, and various types of lymphoma
• Former deputy head of oncology at the University Hospital of Internal Medicine I
• Board member of the Austrian Society of Hematology and Oncology
• Researched chromosomal changes – identifies abnormal proteins to shape modern cancer therapy

Dr. Baha Zengel is a general surgeon at Medicalpoint International Hospital. He specializes in oncoplastic breast surgery and thyroid diseases. He holds a doctorate in Basic Oncology from Dokuz Eylül University. Dr. Zengel serves as a founding board member of the Basic Oncology Association. He works at a JCI-accredited facility in İzmir.

• Performs breast-conserving mastectomy and simultaneous reconstructions.
• Expert in ROLL and SNOLL localization techniques for non-palpable lesions.
• Treats patients using laparoscopic cholecystectomy for gallbladder diseases.
• Former board member of the Aegean Region Surgery Association.

Associate Professor Tahsin Ozatli practices at Istinye University Liv Hospital Bahcesehir. He uses tumor marker blood tests to track breast, lung, and gastrointestinal cancers.

• Previously served as a doctor at the Ankara Oncology Clinic
• Held senior clinical roles at Malatya State Hospital
• Practiced oncology at the Erzurum Regional Training and Research Hospital
• Earned his medical degree from Selcuk University Faculty of Medicine

Dr. Hasan Atilla Ozkan is a hematologist at VM Medical Park Pendik Hospital in Istanbul. He is the President of the Turkish Therapeutic Apheresis Association. Dr. Ozkan specializes in stem cell transplantation and hematological oncology. He received the Young Researcher Award at the 6th Turkish Therapeutic Apheresis Congress.

• Expert in autologous and allogeneic bone marrow transplantation.
• Treats complex blood disorders including leukemia, lymphoma, and myeloma.
• Certified in clinical phytotherapy and flow cytometry application.
• Full member of the European Bone Marrow Transplantation (EBMT) group.

Dr. Cemil Bilir is a professor of medical oncology at VM Medical Park Pendik Hospital in Istanbul. He specializes in immunotherapy and chemotherapy for lung, breast, and prostate cancers. A former research fellow at Northeastern University in Boston, he focused on pharmaceutical biotechnology and nanomedicine. Dr. Bilir works at a JCI-accredited facility where academic physicians provide around-the-clock care.

• Member of the American Society of Clinical Oncology (ASCO) and ESMO.
• Completed a specialized clinical rotation at the Cleveland Clinic in the U.S.
• Treats complex oncological cases, including stage 4 lung cancer and sarcoma.
• Current Ph.D. student in inorganic chemistry at Sakarya University.

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. Hubert leads the Gastrointestinal Cancer Center at Hadassah Medical Center. He uses tumor marker blood tests to help monitor and treat digestive system cancers.

• Dual-qualified specialist in both medical oncology and radiotherapy
• Focuses on cancers of the esophagus, stomach, pancreas, and colon
• Member of the Israel Society of Clinical Oncology
• Experienced in advanced therapies like HIPEC and immunotherapy
• Heads the gastrointestinal cancer committee at Hadassah University Hospital

Dr. Cheon Wonseok is Head of Gastroenterology at Na-Eun Hospital. He treats gastrointestinal disorders. He performs upper endoscopy, colonoscopy, polypectomy, and ESD. He manages gastric and esophageal cancer and Helicobacter pylori infection. He also treats liver disease and inflammatory bowel disease, including Crohn’s disease and ulcerative colitis. He offers small-bowel capsule endoscopy.

Accreditations: Board-certified specialist in gastrointestinal endoscopy. Lifetime member, Korean Society of Gastrointestinal Endoscopy. Full member, Korean Association of Internal Medicine.

Training: Kyung Hee University College of Medicine. Internship, Kyung Hee University Medical Center. Residency in internal medicine, Hallym University Sacred Heart Hospital. Clinical fellowship in gastroenterology, Chung-Ang University Hospital.

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. Selin Kapan is a general surgery professor at İstinye University Liv Hospital Topkapı. She specializes in gastrointestinal surgery and laparoscopic hernia repair. Dr. Kapan has published over 50 peer-reviewed papers in international medical journals. Her research focuses on perianal fistulas and hepatic hydatid disease.

• Performs bariatric procedures including gastric sleeve and bypass surgeries.
• Expert in hernia repair using laparoscopic and robotic techniques.
• Treats complex conditions like salivary gland tumors and pilonidal disease.
• Is a member of the Turkish Surgical Association and the Hernia Society.

Dr. Ercan Ozden is a medical oncologist and internal medicine specialist at VM Medical Park Pendik. He provides treatment for a wide range of cancers, including breast, lung, and colon cancer. Dr. Ozden trained at Istanbul University, Cerrahpasa Faculty of Medicine. He later completed a medical oncology subspecialty at Kocaeli University.

• Specializes in immunotherapy, target therapy, and chemotherapy for complex cases.
• Treats patients at a JCI-accredited hospital in Istanbul.
• Performs staging and biopsies for liver, lung, and pancreatic tumors.
• Provides targeted immunotherapy using medications like Keytruda.

The doctor holds a Doctor of Medicine degree from the Faculty of Medicine, Ramathibodi Hospital, Mahidol University, earned in 2022. The professional practice is centered on general disease diagnosis, treatment, and comprehensive wellness care.

The doctor maintains specialized credentials, including certification in Anti-aging and Regenerative Medicine from the American Board of Antiaging and Regenerative Medicine (ABAARM), as well as certification in Nutritional Wellness from the American Naturopathic Certification Board (ANCB). The doctor is proficient in both Thai and English.