Best Thyroid Function Tests (Including T3, T4, TSH) Doctors in Istanbul

Dr. Didem Karacetin is a radiation oncologist at Biruni University Hospital in Istanbul. She completed clinical training at the Princess Margaret Hospital in Toronto. Dr. Karacetin is a former Head of the Department of Radiation Oncology at Health Sciences University. She specializes in intraoperative radiotherapy for breast cancer and brachytherapy for gynecological tumors.

• Holds a Master’s degree in Phytotherapy from Istanbul University.
• Certified in Hydrogel SpaceOAR applications for prostate cancer treatment.
• Treats lung, brain, and gastrointestinal cancers using targeted radiation.
• Practices at Biruni University Hospital, which holds TEMOS and ISO quality certifications.

Dr. Ayse Kubat Uzum is an endocrinologist at Biruni University Hospital in Istanbul. She serves as Vice President of the Turkish Society of Endocrinology and Metabolic Diseases. Dr. Uzum specializes in treating diabetes, thyroid nodules, and pituitary gland disorders. She conducts research on metabolic parameters following gastric bypass surgery.

• Earned awards for clinical research at the National Diabetes Congress.
• Treats complex conditions like autoimmune thyroiditis and adrenal adenomas.
• Member of the European Society of Endocrinology and the Endocrine Society.
• Works at Biruni University Hospital, a TEMOS-accredited facility in Turkey.

Dr. Elnur Sahibov is a specialist in radiation oncology at Emsey Hospital. He provides thyroid function tests to monitor hormone health during specialized treatments.

• Trained at Marmara University Faculty of Medicine
• Completed expert specialization in radiation oncology
• Studied medicine in English to engage with global research
• Experienced in balancing hormone levels during complex therapies

Dr. Gul Alco is a radiation oncologist and Professor at Medipol Acibadem District Hospital in Istanbul. She excels in treating complex cases, including stage 4 lung and liver cancers. Dr. Alco utilizes the CyberKnife and Da Vinci robotic systems for precise tumor targeting. She works at a JCI-accredited facility known for its high safety standards.

• Specializes in brachytherapy and high-intensity focused ultrasound ablation (HIFU).
• Performs radiofrequency ablation and proton-beam therapy for various malignancies.
• Treats pancreatic, breast, ovarian, and brain cancers using targeted radiation.
• Expert in nuclear medicine diagnostics, including PET-CT with Gallium 68.

Dr. Mehmet Fatih Kilicli is the Chief Medical Officer at Medipol Acibadem District Hospital. He specializes in reproductive endocrinology and metabolism. Dr. Kilicli manages endocrine disorders like thyroid cancer, Addison’s disease, and hirsutism. He works at a JCI-accredited facility using the da Vinci robotic system.

• Treats complex conditions including adrenal gland disorders and hyperparathyroidism.
• Performs specialized procedures like radioiodine therapy and thyroidectomy.
• Provides bioidentical hormone replacement therapy (BHRT) and metabolic surgery.
• Offers complex diagnostics like thyroid function tests and premium check-ups.

Dr. Nail Paksoy is an associate professor of medical oncology at Medipol Bahçelievler Hospital. He is board-certified by the European Society for Medical Oncology (ESMO). Dr. Paksoy specializes in lung, breast, and gastrointestinal cancers. He uses modern immunotherapy and targeted therapy protocols. His clinic is JCI-accredited for high safety standards.

• Served as a subinvestigator in over 8 international clinical trials for Roche and Pfizer.
• Authored over 40 research articles in journals indexed by SCI and SSCI.
• Completed dual fellowships in allergy-immunology and medical oncology.
• Treats complex sarcomas and renal cell carcinomas with systemic therapies.

Assoc. Prof. Orhan Ünal Zorba, MD, is a urologist focused on andrology and endourology. He has about 25 years of experience. He currently sees patients at Private TUSA Hospital. He started there on 8 June 2026.

His academic work includes 29 international and 13 national publications and 7 book chapters. He has given at least 9 presentations at international congresses. His studies have been presented at EAU, ESSM, ICS, and EULIS meetings. He served as Assistant and Associate Professor of Urology from 2009 to 2016. He is a member of the Istanbul Medical Chamber, the Turkish Association of Urology, the Turkish Society of Andrology, and the Eastern Black Sea Association of Urologists.

Key areas include male infertility (micro‑TESE; outcomes in 191 patients with non‑obstructive azoospermia), microsurgical varicocele repair, prostate surgery (HoLEP, TURP), endoscopic stone surgery (URS, PCNL), and uro‑oncology. He speaks English.

Prof. Dr. Abdullah Sakin is a professor of medical oncology. He treats solid tumors, including lung, breast, gastrointestinal, genitourinary, gynecologic, head and neck cancers, and melanoma.

He delivers personalized, evidence-based care. His treatments include chemotherapy, targeted therapy, immunotherapy, hormone therapy, and precision oncology. He has authored more than 200 scientific publications and takes part in international clinical research. This work advances patient-centered cancer care.

Prof. Dr. Gül Alço is a radiation oncologist with about 27 years of experience. She treats breast, lung, prostate, gastrointestinal, gynecologic, central nervous system, head and neck, soft tissue, and bone cancers with radiotherapy.

Her expertise includes adaptive radiotherapy and radiosurgery. She uses advanced radiation techniques to provide personalized, evidence-based care in a multidisciplinary, patient-centered setting.

Dr. Ilker Tolga Özgen is a professor of pediatric endocrinology at Biruni University Hospital in Istanbul. He won multiple first prizes for research on Turner syndrome and precocious puberty. Dr. Özgen treats growth retardation, diabetes, and thyroid disorders. He serves patients at a TEMOS-accredited university hospital in a modern campus.

• Specializes in puberty problems and menstrual irregularities in adolescent girls.
• Treats metabolic issues including obesity and adrenal gland disorders.
• Clinical focus includes pituitary disorders and genital abnormalities in boys.
• Member of the Pediatric Endocrinology and Diabetes Association.

Dr. Ismail Yildiz is an anesthesiologist and intensive care specialist at Biruni University Hospital. He holds a subspecialty in intensive care from Akdeniz University. Dr. Yildiz manages critical conditions including sepsis and acute respiratory distress syndrome. He works at a TEMOS-accredited facility in Istanbul equipped with 15 operating rooms.

• Expert in ECMO and renal replacement therapy for critically ill patients.
• Member of the European Society of Intensive Care Medicine.
• Specializes in organ transplant anesthesia and life support for brain death cases.
• Uses echocardiography and ultrasonography for bedside patient monitoring.

Dr. Siar Dursun is a pediatric neurologist at Medipol University Pendik Hospital in Istanbul. He specializes in treating complex neurological conditions in children, including epilepsy and cerebral palsy. Dr. Dursun completed his medical training at Adnan Menderes University and Izmir Research Hospital. He works at a university-affiliated center that serves 350,000 patients annually.

• Treats neurodegenerative diseases, West syndrome, and spinal muscular atrophy.
• Performs pediatric check-ups and diagnostic video-EEG monitoring for epilepsy.
• Provides medication management for autism and Parkinson’s disease.
• Practices at a hospital with 21 dedicated newborn intensive care units.

Dr. Hamza Ugur Bozbey is a clinical oncologist at Uniqacare Clinic in Istanbul. He treats malignancies including glioblastoma, sarcoma, and stage 4 lung cancer. He manages solid tumors and hematological cancers such as leukemia and lymphoma, as well as rare conditions like chordoma and neuroendocrine tumors.

• Treats gynecologic, orthopedic, and neurological cancers.
• Uses chemotherapy and targeted therapy for stage 4 metastatic disease.
• Works at Uniqacare Clinic, which serves over 430,000 patients annually.
• Member of the Turkish Medical Association.

Dr. Serap Baydur is an endocrinology specialist at Medistate Hospital Istanbul. She focuses on metabolic health and thyroid dysfunction.

• Treats autoimmune thyroiditis and diffusive-toxic goiter
• Works at Medistate Hospital – a JCI-accredited facility since 2021
• Manages thyroid function tests to evaluate hormonal disorders
• Offers online consultations for international endocrine evaluations
• Provides diabetes mellitus treatment using regenerative stem cell techniques

Dr. Esra Bahadir Ulger is a radiologist at Medipol Acibadem District Hospital in Istanbul. She performs medical check-ups and diagnostic imaging. Dr. Ulger provides online consultations for remote image reviews. She works at a JCI-accredited facility.

The hospital has 276 beds and 50 physicians. Dr. Ulger uses the clinic’s diagnostic infrastructure to identify medical conditions. Medipol Acibadem District Hospital is one of the newest medical centers in the region.

Dr. Mesut Okur is a professor and chief physician at Medipol University Pendik Hospital in Istanbul. He specializes in pediatric health and diseases, with a focus on internal medical sciences. Dr. Okur has published over 25 international peer-reviewed articles. He treats children for conditions ranging from congenital heart defects to thyroid disorders.

• Published research on Down syndrome, pediatric brucellosis, and neonatal health.
• Supervises specialized medical theses on allergic rhinitis and pediatric diabetes.
• Practices at a hospital holding a Healthcare Quality Standards Certificate of 95.4%.
• Performed clinical research on pediatric voiding dysfunction and enuresis.