Best endocrinologists: TOP 109 doctors

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.

Dr. Tülay Omma, Associate Professor

Specialization: Endocrinology and Metabolic Diseases

Academic Background

• Medical Education: İnönü University, Faculty of Medicine (English Program), 1994–2001.
• Internal Medicine Residency: Haseki Training and Research Hospital, 2004–2010.
• Subspecialty in Endocrinology and Metabolism: Ankara Training and Research Hospital, 2013–2017.

Professional Experience

• Clinical Expertise: 
  • General Practitioner with administrative responsibilities, 2002–2004.
  • Specialist in Internal Medicine during mandatory service, 2010–2013.
  • Endocrinologist and Metabolic Disease Specialist at Ankara Training and Research Hospital (2017–2023).
  • Earned the title of Associate Professor in 2023, reflecting her academic and clinical excellence.
    Lokman Hekim Health Group 2023 (present) 

Scientific Contributions & Publications

• Research Output: 
  • Published over 20 articles in peer-reviewed international journals, with a strong focus on diabetes, thyroid disorders, and polycystic ovary syndrome.
  • Delivered numerous oral presentations and posters at national and international conferences.
• Citation Metrics: 
  • Total Citations: 166
  • H-index: 6
  • i10-index: 4

Awards & Recognitions

• Multiple prestigious accolades, including: 
  • Best Oral Presentation Award (2023): For groundbreaking research on COVID-19 vaccines and Graves’ Disease.
  • Best Poster Award (2021): For clinical insights into hypoparathyroidism in Turkey (HiPOPARATURK-NET Study).

Professional Memberships & Certifications

• Active member of leading organizations: 
  • European Society of Endocrinology (ESE) and its Young Endocrinologists & Scientists Committee (EYES).
  • Turkish Society of Endocrinology and Metabolism.
• Completed numerous advanced training programs, including certifications in clinical trials, biostatistics, and thyroid ultrasonography.

Clinical & Research Focus

Dr. Omma’s expertise spans:

• Diabetes management and its complications.
• Advanced thyroid disease diagnosis and treatment.
• Polycystic Ovary Syndrome (PCOS) and its metabolic implications.
• Investigating the relationship between diet and endocrine/metabolic disorders.

Dr. Gonul Catli is a pediatric endocrinologist with over 20 years of experience. She specializes in childhood hormonal and metabolic disorders. Her areas of focus include diabetes, thyroid diseases, growth problems, and puberty issues. She received her training at Ankara University and Dokuz Eylul University. Dr. Catli has also worked as an Associate Professor at Izmir Katip Celebi University.

Dr. Catli is known for her scientific work and caring approach. She currently practices at Liv Hospital Ulus and Vadistanbul. She is a member of the European Society of Pediatric Endocrinology (ESPE) and several national associations. Dr. Catli is dedicated to using new treatments to support children’s health and well-being.

Education

• Undergraduate: Çukurova University, Faculty of Medicine 1992-1998
• Specialty Education: Istanbul Training and Research Hospital 1998-2003
• Subspecialization: IU Istanbul Faculty of Medicine 2004-2007
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Experience

• Istanbul Training and Research Hospital 1998-2003
• IU Istanbul Faculty of Medicine 2004-2007
• Istanbul Training and Research Hospital 2007-2009
• Şanlıurfa Training and Research Hospital 2009-2011
• Bağcılar Training and Research Hospital August 2011- November 2011
• Istanbul University, Istanbul Faculty of Medicine, Department of Internal Medicine, Endocrinology and Metabolic Diseases December 2011- 2014
• Istanbul University, Istanbul Faculty of Medicine, Department of Internal Medicine, Endocrinology and Metabolic Diseases 2014-2020
• Istanbul University, Istanbul Faculty of Medicine, Department of Internal Medicine, Endocrinology and Metabolic Diseases 2020-2024

Scientific Memberships
 

• Turkish Society of Endocrinology and Metabolic Diseases (Vice President)
• European Society of Endocrinology;
• Endosociety

Awards

1. 1. Bestclinical scientific publication support award (53rd National Diabetes Congress, 2017)
2. 2. 54th National Diabetes Congress (2018) with the study titled "The effects of adding pre-probiotics to the diets of patients with gastric bypass (GBP) on metabolic parameters, icretin levels and hunger, satiety and appetite scores of patients".

Medical Intrests

• Diabetes
• Thyroid diseases (hypothyroidism, hyperthyroidism, thyroid nodules)
• Pituitary diseases
• Adrenal gland diseases
• Osteoporosis

Education

• Undergraduate: Faculty of Medicine, Istanbul University, 1993-1997
• M.Sc: Faculty of Medicine, Istanbul University, 1997-1999
• Specialization: Pediatrics, Ondokuz Mayıs University, 1999-2004
• Subspecialty: Pediatric Endocrinology, Ondokuz Mayıs University, 2004-2007
•  

Experience

• Ar.Gör. (Research Assistant): Ondokuz Mayıs University Faculty of Medicine, 1999-2004
• Research Assistant (Minor Research Assistant): Ondokuz Mayıs University Faculty of Medicine (Pediatric Endocrinology), 2004-2007
• Assist. Assoc. Dr.: Ondokuz Mayıs University Faculty of Medicine, 2007
• Uzm. Dr.: Gulhane Military Medical Academy (Military Service), 2007-2008
• Uzm. Dr.: Bakırköy Obstetrics and Gynecology Training and Research Hospital (Compulsory Service), 2008-2011
• Assoc: Bezmialem Vakif University Faculty of Medicine, 2011-2013
• Assoc. Dr.: Bezmialem Vakif University Faculty of Medicine, 2013-2018
• Prof. Dr.: Bezmialem Vakif University Faculty of Medicine, 2018-2023
• Prof. Dr.: Biruni University, 2023-
•  

Scientific Memberships

• National Pediatric Association
• Pediatric Endocrinology and Diabetes Association
•  

Awards

• Growth curves of Turkish girls with Turner syndrome: FAVOR Turner syndrome study group: 59th national pediatric congress 4-8 November 2015 ANTALYA PRIZE FIRST PRIZE FOR AN ORAL PRESENTATION
• Anthropometric findings and karyotype in Turner syndrome: National Turner syndrome database. 19TH UPEK 22-25 OCTOBER 2015. POSTER SECOND PRIZE
• Investigation of the Role of Irisin in the Pathophysiology of Puberty Precox in Female Rats. Esra Kutlu, İlker Tolga Özgen, Huri Bulut 24th UPEK Short Oral Presentation First Prize.
•  

Medical Interests

• -Growth Retardation
• -Puberty Problems (Early or Late Puberty)
• -Menstrual Irregularities in Adolescent Girls
• -Increased Hair Growth in Adolescent Girls
• -Diabetes
• -Obesity
• -Thyroid Problems
• -Pituitary Disorders
• -Genital Abnormalities
• -Micropenis and Gynaecomastia in Boys
• -Adrenal Gland Disorders

Education and Expertise

• 1989 BORNOVA ANATOLIAN HIGH SCHOOL
• UNDERGRADUATE DEGREE 1995 EGE UNIVERSITY/ FACULTY OF MEDICINE
• SPECIALIZATION IN MEDICINE 2001 DOKUZ EYLÜL UNIVERSITY/MEDICAL FACULTY INTERNAL MEDICINE DEPARTMENT
• MEDICAL SPECIALIST 2005 DOKUZ EYLÜL UNIVERSITY FACULTY OF MEDICINE ENDOCRINE AND METABOLISM DISEASES

Biography

Our doctor admits patients aged or older than 15.

Medical Education

School of Medicine, Ege University

Medical Residency

Department of Internal Medicine, School of Medicine, Dokuz Eylül University

Department of Endocrinology, School of Medicine, Dokuz Eylül University

Areas of Interest

Diabetes Mellitus

Thyroid Diseases

Pituitary Diseases

Hirsutism

Osteoporosis

Membership

Turkish Society of Endocrinology and Metabolism

Experience

• 2005-2009 Private Western Anatolia Central Hospital
• 2009-2011 Private Healing Hospital
• 2011-2016 Private Izmir Sifa University
• 2016-2023 Izmir Medical Point Hospital

Professional Memberships

• Turkish Medical Association
• Turkish Endocrinology and Metabolism Association

Dr. Kubilay Ukinc is a specialist in endocrinology and metabolic diseases. His clinical interests include diabetes, thyroid disorders, obesity, and hypertension. He also treats adrenal and pituitary diseases, as well as hormone-related disorders in both women and men. Dr. Ukinc has expertise in low blood sugar conditions.

He received his medical training at Hacettepe University and Karadeniz Technical University. He has worked in academic and clinical roles at Karadeniz Technical University, Çanakkale Onsekiz Mart University, and Istanbul Bilim University. Dr. Ukinc has broad experience in internal medicine and endocrinology. He is active in both patient care and medical education.

Dr. Bum Seung Gyun
Prosthesis Specialist – Director

Professional Summary

Dedicated prosthodontist with extensive clinical training and a strong academic foundation in prosthetic and restorative dentistry. Dr. Bum is a certified Conservative Specialist and holds memberships in several prestigious dental academies, reflecting his commitment to excellence and continued education in advanced dental care.

Education & Training

Internship & Residency in Prosthodontics
Wonkwang University Dental College Hospital

Licensure & Certification

Conservative Specialist, certified by the Ministry of Health and Welfare

Professional Affiliations

Full Member, Korean Academy of Prosthodontics

Full Member, Korean Academy of Advanced General Dentistry

Full Member, Korean Academy of Stomatognathic Function and Occlusion

Education:

• Degree: Faculty of Medicine, Trakya University, 2009
• Medical Specialty: Internal Medicine, Bakırköy Dr. Sadi Konuk Training and Research Hospital, 2010-2014
• Specialist Doctor: Internal Medicine, Kanuni Sultan Süleyman Training and Research Hospital, 2014-2019
• Specialist Doctor: Internal Medicine, Turkish Hospital Internal Medicine Clinic, Qatar, 2019-2020
• Specialist Doctor: Internal Medicine, Istanbul Medipol University Hospital Mega Hospital Internal Medicine Department, 2020-2024
• Associate Professor Doctor: Internal Medicine, Istanbul Medipol University Medipol Acıbadem Regional Hospital, 2024-Present.

Roles in Projects:

Sub investigator (Assistant Researcher) in the SOUL Study: Cardiovascular Outcome Research of Semaglutide in Type 2 Diabetic Patients, approved by the Turkish Medicines and Medical Devices Agency on May 22, 2019.

Sub investigator (Assistant Researcher) in the international study “SCALE™ Insulin”: Efficacy and Safety of Liraglutide 3.0 mg in Overweight or Obese Patients with Type 2 Diabetes Treated with Basal Insulin (Study Code: NN8022-4272), conducted by Novo Nordisk A.Ş.

Subinvestigator (Assistant Researcher) in the international study NN5401-4266 StepByStep Intensification conducted by Novo Nordisk.

Assistant Researcher in the study "A Research Study to Compare Semaglutide to Insulin Aspart, When Taken Together With Metformin and Insulin Glargine, in People With Type 2 Diabetes (SUSTAIN 11)" (2019-2020).

Assistant Researcher in the PIONEER 1 study: Randomized Clinical Trial of the Efficacy and Safety of Oral Semaglutide Monotherapy in Comparison With Placebo in Patients With Type 2 Diabetes.

Dr. Bercem Aycicek is an Associate Professor with over 20 years of experience in endocrinology and metabolic diseases. She is known for her strong clinical skills in treating complex hormonal and metabolic conditions. Her areas of expertise include diabetes, thyroid diseases, obesity, and resistant hypertension.

Dr. Aycicek is one of the few endocrinologists in Turkey with a focus on gender-affirming hormone therapy for trans individuals. She provides evidence-based and sensitive care. She also has a special interest in women’s health, managing issues such as irregular periods, delayed puberty, and metabolic bone diseases.

She earned her Associate Professorship at Health Sciences University Derince. Dr. Aycicek has worked in both public and private healthcare settings, helping to improve access to care. She is an active member of the Turkish Endocrine and Metabolism Society and the European Society of Endocrinology.

After the internal medicine examination, he also practiced in the United Kingdom, mainly treating patients with diabetes and endocrinological problems.

Diploma:

• 2002. Semmelweis University of Medicine General Medicine

Professional exam:

• 2007. Internal medicine
• 2014. Diabetology

Workplace

• 2015-2017 Mens Mentis Health Center
• 2017- EndoCare Endocrinology Center

Specialist in bariatric surgery

Surgeon. Laparoscopic and bariatric surgery specialist.

Endocrinologist

• Renowned endocrinologist specializing in hormone-related conditions.
• International practice in Germany, enhancing global endocrinology standards.
• Expert in managing diabetes, thyroid disorders, and metabolic syndromes.
• Holds certifications in general medicine and visceral surgery.
• Active member of the German Society for General and Visceral Surgery.
• Offers online consultations for international endocrinology patients.
• Pioneer in minimally invasive endocrine surgery techniques.
• Key founding member of the International Endohernia Society.
• Recognized authority in adrenal and pituitary gland surgeries.
• Contributes to advancing endocrinology through international collaboration.

NUTRITION AND DIET SPECIALIST 

Ezgi Sevic graduated from Hacettepe University, Department of Nutrition and Dietetic as Honor Student. During her education, she conducted studies on “'The Effect of Hedonic Eating Behavior on Obesity', 'Total Parenteral Nutrition in Children' and 'The Relationship Between Insulin Resistance and Obesity'.” During her education, she took part in the field in studies on determining the nutritional status of the society. She worked as intern dietitian in Hospitals of Hacettepe University (Oncology Hospital, Adults Hospital, İhsan Doğramacı Child Hospital), Dışkapı Yıldırım Beyazıt Training and Research Hospital and many Community Health Centres. 
She worked in Izmir Private Ekol Hospital. She successfully completed the 'Bariatric Nutrition Course' and the 'Innovations in Obesity Course'. She has participated in many training and seminar programs in her field. 

Interests: Post- Metabolic and Bariatric Surgery Nutrition, the Nutrition in Chronicle Diseases, Nutrition in Individuals with Diabetes, Nutrition in Cancer, Nutrition in Congenital Metabolic Diseases, Food Intolerances, Body Weight Control, Child and Adolescent Nutrition, Nutrition in Old Age, Nutrition in Pregnancy and Lactation.

Dietit. Ezgi Sevic knows advanced English. 

Dr. Philipp Riss is the Team Leader in Surgical Endocrinology at the Medical University of Vienna. He specializes in general and visceral surgery. Dr. Riss earned his Doctorate in Medicine in 2005. He is a Senior Physician and a University Professor. He leads the Surgical Endocrinology Working Group. Dr. Riss has also organized several major international congresses.

He has received the Venia Docendi Award and the Sandoz Award for Thyroid Research. Dr. Riss is a member of leading societies, such as the European Society of Endocrine Surgeons and the International Society of Surgery. He also serves on advisory boards for neuroendocrine and endocrine surgery in Austria.

• Specializes in treating diabetes, thyroid disorders, and hormonal imbalances.
• International practice includes guidance for patients seeking treatments abroad.
• Offers remote consultations for global patients with endocrine disorders.

Specializations

Cancer Surgery

Pancreatic Surgery

Bile Duct Surgery

Bariatric Metabolic Surgery

Oncological Surgery

Breast Surgery

Gastric cancer

Colon cancer

Thyroid Cancer

Obesity Surgery

Diabetes Surgeries