Tumor Marker Blood Test Doctors Abroad — Page 5

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.

The doctor is an oncologist specializing in the treatment of breast, lung, and gastrointestinal cancers. Currently, the doctor practices at Istinye Liv University Hospital.

With a career spanning multiple esteemed institutions, the doctor has served as an Internal Medicine Specialist at Malatya State Hospital, a physician at Ankara Oncology Clinic, and a member of the Oncology Department at Erzurum Regional Training and Research Hospital.

The doctor graduated from the Faculty of Medicine at Selcuk University and achieved the title of Associate Professor in 2016.

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. 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. 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.