Best Thyroid function tests (including T3, T4, TSH) doctors: TOP 87 doctors

The doctor graduated from the School of Medicine at Hacettepe University and completed residency at Istanbul Sisli Etfal Training and Research Hospital, followed by a fellowship at the Hacettepe University Cancer Institute.

Specializing in oncology, the doctor has extensive experience in treating various cancers, including breast, testicular, ovarian, lung, head and neck, and gastrointestinal cancers.

The doctor has worked at prestigious institutions such as The University of Texas MD Anderson Cancer Center, Hitit University Corum Training Hospital, and Medical Park Hospital.

Dr. Kemal Raşa is an experienced general surgeon with over 20 years of practice, specializing in breast cancer, pancreatic and thyroid cancer surgery, and glucose metabolism and infection treatment. He is the President of the Surgical Infection Society - Europe and a lecturer in several departments. He is also a member of The Surgical Infection Society Europe (SIS-E), The World Society of Emergency Surgery (WSES), The World Surgical Infection Society, The Turkish Medical Association and The Turkish Surgical Association.

Nuclear medicine specialist

The doctor completed medical education at Istanbul University, Cerrahpaşa Faculty of Medicine, and conducted clinical studies at Baylor College of Medicine and The University of Texas Medical School. He passed the USMLE exams and obtained the ECFMG Certificate to practice in the USA. After returning to Turkey, he specialized in general surgery at Istanbul University and earned a diploma in Laparoscopic Surgery from the University of Strasbourg. He passed the European Board of Endocrine Surgery exam and is one of five surgeons in Turkey with this certification. The doctor has over 10 years of experience in laparoscopic and minimally invasive surgeries, performing over 2000 successful operations.

Dr. Sertkaya graduated from Konya Meram Science High School in 2001 and entered Gazi University Medical Faculty the same year, graduating in 2008. He completed his urology specialization at Haydarpaşa Numune Training and Research Hospital in 2014, becoming a urology specialist.

Since becoming a specialist, he has focused on the sub-branch of Andrology, attending various training sessions and conferences and performing surgeries with some of the world's leading Andrology professors. In 2017, he passed the written and oral proficiency exams conducted by the European Association of Urology, earning the title of "FEBU."

In 2020, Dr. Sertkaya achieved the rank of Associate Professor of Urology. His journey in Urology and Andrology, which began in 2008, continues at the Andro Expertise Male Health and Aesthetics Center, which he founded in 2022. He sees patients in his own clinic and performs surgeries at affiliated hospitals.

Doctor Brenda Pastrana is a mexican surgical Oncologist. 

Medical background.

Centro Medico Nacional 20 de Noviembre Issste, Surgical Oncologist in 2020.

Title by Universidad Autónoma de México UNAM.

Surgical Residency Instituto Mexicano del Seguro Social. 2015.

Title by Universidad de Quintana Roo. 

Board Certified by Conacem from 2020 to 2025 number 2171 

Board Certified by Conacem from 2025 to 2030 number 2171

Member of SMEO. Sociedad Mexicana de Oncología. 

University teacher at Universidad Anahuac of Medicine since 2020.

The doctor serves as the Chief Physician of the Otolaryngology, Head and Neck Surgery, and Plastic Surgery Departments at Solingen Clinic in Germany. Specializing in the sparing treatment of tumors in the head, neck, and upper airways, the doctor employs advanced techniques such as endoscopic operations through the nose and robotic interventions with incisions as small as 1 cm.

With over 11 years of surgical experience, the doctor is also an accomplished academic, contributing to 78 scientific publications. The doctor completed medical studies in the USA and Germany, and has held significant roles in various German medical institutions.

Dr. Einat Shacham‑Shmueli is a senior medical oncologist at the Gastrointestinal Clinic, Cancer Center, Sheba Medical Center. She treats cancers of the colon, stomach, and pancreas. She also manages metastatic disease. She uses precision diagnostics and biomarkers, systemic therapies, and radiotherapy. Care is provided within a multidisciplinary team.

She has authored more than 25 peer‑reviewed papers on GI oncology, tumor biology, and new treatments. Her work includes studies on stenting for malignant colonic obstruction. She serves as an investigator in international programs, including the NCI, the Radiation Therapy Oncology Group, and the Cancer Therapy Evaluation Program.

Education: MD, Tel Aviv University. Oncology residency, Tel Aviv Sourasky Medical Center. Advanced training in GI oncology, UCSF. Accreditations: Board certified in Oncology and Gastroenterology. Member, Israel Society of Oncology and Radiotherapy.

Education and Specialization

• Faculty of Medicine, Hacettepe University
• 1999 - Akdeniz University, Faculty of Internal Medicine, Internal Medicine Specialization Training
• Internal Medicine Specialization Training in the USA, Akdeniz University (2013 - 2014)
• Internal Medicine Specialization Training in the USA (2013 - 2014) - Medical Oncology Department
• Akdeniz University, Faculty of Medicine, Department of Medical Oncology (Received Associate Professorship title)

Work Experience

• 2009 - Kayseri Training and Research Hospital, Hospital
• Acıbadem Kayseri
• 2017 - 2018 - Lara Private Anadolu Hospital
• 2018 - Medical Park Antalya Hospital Complex

Expertise

• Diagnosis of organ tumors
• Chemotherapy in cancer treatment
• Targeted cancer therapies
• Immunotherapy in cancer treatment
• Next-generation genetic research in cancer treatment
• Complementary medicine in cancer treatment
• Medical oncology

The doctor graduated from Cerrahpaşa School of Medicine, Istanbul University in 1999 and completed a residency in Internal Medicine there in 2005. Further specializing in Endocrinology and Metabolic Diseases, the doctor completed a fellowship at Selçuk University in 2010 and achieved Associate Professorship in 2016.

Recognized for excellence in scientific research, the doctor received awards at the National Diabetes Congress and Selçuk University in 2014. With 42 international and 16 local scientific articles, the work has been cited 230 times. The doctor has contributed to 80 presentations and participated in numerous scientific projects, including those funded by TUBİTAK.

Clinical interests include diabetes, thyroid diseases, and hormone disorders.

The doctor graduated from Istanbul University's Çapa School of Medicine in 1998 and completed a residency in Radiodiagnostics and Interventional Radiology at Cerrahpaşa School of Medicine in 2002. Specializing in Diagnostic Radiology and Teleradiology, as well as Interventional Radiology, the doctor has participated in 12 local and one international congress, contributing numerous oral and written presentations. The doctor has held positions at Hisar Intercontinental Hospital, Merzifon Air Hospital, Istanbul Emar Center, and Haseki Training and Research Hospital.

The doctor completed medical education at Trakya University Medical School, Cerrahpaşa Medical School, and Kocaeli University Medical School. Specializing in endocrinology, the doctor focuses on diabetes, obesity, thyroid disorders, and diseases of the pituitary and adrenal glands.

With a robust academic background, the doctor has contributed to the medical field with more than 25 national and international publications, showcasing expertise and commitment to advancing medical knowledge in these areas.

Experience

• Resident physician at the Princess of Spain Hospital, Bellvitge (until December 1996).
• Scholarship from the Ciutat Sanitària i Universitària de Bellvitge (1997), focused on the treatment of type I diabetes.
• Physician in the Department of Internal Medicine at the Bellvitge Hospital (until March 1999).
• Endocrinologist at the Dr. Josep Trueta Hospital in Girona (until September 2000).
• Member of the medical staff of the Teknon Centre since 2002.

Education

• Degree in Medicine and Surgery from the University of Valencia (1992).
• Specialist in endocrinology and nutrition (since 1997).

Scientific activity

• Dissertation : "Study of the pituitary-adrenal axis in pituitary diseases."

Teaching

• Lecturer in Endocrinology and Metabolism at the International University of Catalonia.
• Participation in conferences and publications on diabetes and the pituitary-adrenal axis in national and international journals.

The doctor is a leading figure in medical oncology, hematology, and cancer immunotherapy, with a career spanning over four decades. After earning a medical degree from the University of Vienna in the 1970s, the doctor completed specialist training in internal medicine and oncology in the 1980s.

In the 1990s, the doctor was appointed Head of the Clinical Division of Oncology at the Medical University of Vienna, leading Austria's largest oncology department. The 2000s saw the founding of the Comprehensive Cancer Center Vienna, integrating patient care, research, and education.

The doctor served as President of the Central European Cooperative Oncology Group in the 2010s and currently holds positions as Chairman of the Vienna Cancer Center and Medical Director of Wiener Privatklinik’s International Oncology Center.

Prof. Dr. Sezer Sağlam is a medical oncologist at Gayrettepe Florence Nightingale Hospital. He specializes in gastrointestinal and breast cancers. He has contributed to cancer care through research, especially with his study on the best timing for surgery after neoadjuvant therapy in rectal cancer. This work has influenced global treatment protocols.

Dr. Sağlam has led clinical trials in targeted therapies and precision medicine. His research on liver-transplanted patients with hepatocellular carcinoma was nominated for the 2024 International Best Researcher Award. He is a member of ASCO, ESMO, and ENET. Dr. Sağlam provides personalized and evidence-based oncology care.

The doctor is a leading Austrian endocrine and general surgeon, recognized internationally for expertise in thyroid, parathyroid, and adrenal gland surgery, as well as research in endocrine oncology. The doctor graduated from the University of Vienna in the 1990s and completed a residency in general and visceral surgery at the Medical University of Vienna. Specializing in endocrine and metabolic surgery, the doctor performs advanced minimally invasive procedures.

Currently serving as a senior consultant at Wiener Privatklinik and Vienna General Hospital, the doctor focuses on endocrine oncology and precision surgical therapy. Widely published, the doctor contributes to shaping European standards in endocrine surgery and actively mentors future surgeons.

The doctor is a leading expert in endocrinology, diabetology, and metabolic diseases, recognized for pioneering research and leadership in internal medicine. With a medical degree from the University of Vienna and specialization at Vienna General Hospital, the doctor has focused on diabetes, pituitary and thyroid disorders, and neuroendocrine tumors.

As Professor and Head of the Division of Endocrinology and Metabolism at the Medical University of Vienna, the doctor led a top center for hormonal disorders. The doctor has published extensively on diabetes management and hormonal therapies, contributing to international clinical trials.

Currently, serving as Senior Consultant at Wiener Privatklinik, the doctor remains active in research and mentoring, influencing modern hormone therapy and diabetes management in Austria.

Dr. Viola Fox is the Chief Physician at the Clinic for Haematology, Oncology, and Palliative Medicine at BKZ Solingen. This clinic is a certified interdisciplinary cancer center. Dr. Fox is a leading expert in drug therapy for tumor diseases in Germany and Europe. She has more than 15 years of experience in this field.

She is a member of the German Society of Oncology and Haemato-oncology (GDHO), the German Association of Physicians, and the American Association for Cancer Research. Dr. Fox is also active in molecular biology research. Her work supports progress in cancer treatment and molecular diagnostics.

Her main areas of expertise are chemotherapy, immunotherapy, targeted therapy, and radiation therapy. Dr. Fox is known for her innovative methods and strong commitment to patient care. Her efforts have led to high recovery rates and recognition from her peers.

Dr. Séverine Iborra is the Chief Physician of the Department of Gynecology and Obstetrics at Städtisches Klinikum Solingen. Her responsibilities include obstetrics, the delivery room, the neonatal unit, and gynecology. The department also includes the Senology/Breast Clinic at the Bergisches Breast Center Solingen, led by Dr. Manuela Seifert.

Dr. Séverine Iborra is originally from France. She began her medical studies at the University of Lyon and later transferred to Albert-Ludwigs University in Freiburg, where she received her medical license in 2007. She earned her doctorate in 2008 for experimental research in molecular oncology. From August 2008 to November 2013, Dr. Iborra worked as a resident at the University Women’s Clinic in Freiburg. After passing her specialist exams in gynecology and obstetrics, she continued her career as a specialist at the same clinic. In November 2015, she moved to RWTH University Hospital Aachen as a senior physician.

At the Clinic for Gynecology and Obstetrics, under the leadership of Prof. Dr. E. Stickeler, Dr. Iborra led the obstetrics department from 2017 to 2019. Since December 2017, she was responsible for organizing education in the department, and in October 2019, she became the Managing Senior Physician and Personnel Senior Physician of the clinic, a position she held until she moved to Solingen.

In addition to her scientific work, with numerous publications and presentations at major gynecological conferences, Dr. Iborra deepened her medical specialties. She obtained certifications in oncological diagnostics and therapy from the Gynecological Oncology Working Group, as well as additional qualifications in Cervical Pathology and Colposcopy (AGCPC), Urogynecology and Pelvic Reconstructive Surgery (AGUP), and the Professional Association of Gynecologists (BVF).

In 2019, Dr. Iborra successfully completed further specialization in “Gynecological Oncology” and “Special Obstetrics and Perinatal Medicine.” She is an active member of leading German medical societies in her field, including the German Society for Gynecology and Obstetrics, the Cervical Pathology and Colposcopy Working Group, and the German Society for Prenatal and Birth Medicine.

Treatments Offered in Our Gynecology Department

• Hysteroscopy and Dilation and Curettage (D&C) for diagnostic and therapeutic purposes.
• Removal of abnormal or symptomatic ovarian findings, such as cysts, while preserving the remaining ovary.
• Oophorectomy (removal of ovaries) in cases of abnormalities or preventively when indicated.
• Myomectomy (removal of uterine fibroids) while preserving the uterus.
• Conservative treatment of fibroids: either medication or embolization performed by radiology specialists.
• Hysterectomy with or without removal of the cervix.
• Diagnosis and clarification of unclear findings in the cervix, vagina, and vulva.
• Dysplasia treatment.
• Endometriosis management.
• Cancer treatment for vulvar, vaginal, cervical, uterine, and ovarian cancers.
• Treatment for incontinence and/or pelvic organ prolapse.

Whenever possible, we offer all procedures as minimally invasive treatments using laparoscopy or the Da Vinci robotic system.

Anyarat Vichayawannakul, M.D.

Expertise

INTERNAL MEDICINE / ENDOCRINOLOGIST AND METABOLISM 

Graduation (M.D. From)

Bachelor of Medicine, Faculty of Medicine, Chulalongkorn University (Second Class Honor)

Certificates

Diploma in Internal Medicine, Faculty of Medicine, Chulalongkorn University

Diploma in Endocrinology and Metabolism, Rajavithi Hospital, Department of Medical Services .

Current Positions

INTERNAL MEDICINE / ENDOCRINOLOGIST AND METABOLISM AT INTRARAT HOSPITAL