Best endocrinologists in Turkey: TOP 56 doctors

• Specializes in endocrine disorders: thyroid, parathyroid, adrenal, neuroendocrine tumors.
• International practice in the USA at Baylor College and The University of Texas.
• Performed over 2000 successful endocrine surgeries.
• Holds European Board of Surgery Qualification in endocrine surgery.
• ECFMG Certificate holder, licensed to practice medicine in the USA.
• Member of the Union Européenne des Médecins Spécialistes.
• Provides online consultations for endocrine-related health issues.

• Specializes in diabetes, thyroid diseases, and hormonal disorders.
• Trained in Turkey; contributes to international endocrinology research.
• Authored 42 articles in international journals; speaks at global conferences.
• Recognized for diabetes research with National Diabetes Congress awards.
• Holds an Associate Professorship in Endocrinology and Metabolic Diseases.
• Professional memberships enhance knowledge in endocrinology advancements.
• Offers online consultations for patients with endocrine-related conditions.

Endocrinologist

Dr. Zuhal Tanzer is a specialist in Internal Diseases. She is known for her skill in diagnosing and treating complex medical conditions. Dr. Tanzer has a strong record of patient satisfaction and successful treatments. She is accredited by top medical institutions. She also takes part in ongoing medical education. Dr. Tanzer uses evidence-based methods and is dedicated to improving standards in internal medicine.

Dr. Ersan Eroglu is an Associate Professor and general surgery specialist. He has served at Memorial Bahçelievler Hospital since 2018. He has been an Assistant Professor at Istanbul Bilim University since 2014. He also lectures at Istanbul Arel University since 2023. He earned his MD from Fırat University. He completed his general surgery residency at Haydarpaşa Numune.

He has authored 16 scientific articles. He has 25 national and 3 international congress presentations. He won First Prize in Turkey for laparoscopic right hemicolectomy in ileocecal neuroendocrine tumors. He contributed a translation to the SAGES Hernia Repair Manual (laparoscopic TEP/TAPP). He is a member of the Turkish Medical Association, the Turkish Surgical Society, and the Colon and Rectal, Bariatric and Metabolic, and Endocrine Surgery societies.

Dr. Hakan Duger is a specialist in Endocrinology and Metabolic Diseases. He has worked at Gaziantep Özel Defa Life Hospital since 2023. He previously served at Kilis Prof. Dr. Alaeddin Yavaşca State Hospital from 2021 to 2023.

Education and training: Gazi University Faculty of Medicine (2006–2012). Internal Medicine residency at Uludağ University (2012–2017). Endocrinology and Metabolic Diseases training at Ankara Numune Training and Research Hospital (2017–2018) and Ankara Dışkapı Yıldırım Beyazıt Training and Research Hospital (2018–2021). He also served as an Internal Medicine specialist at Şanlıurfa Mehmet Akif İnan Training and Research Hospital (2017–2019).

Professional memberships: Turkish Medical Association. Turkish Society of Endocrinology and Metabolism. Turkish Diabetes Association. Clinical Endocrinology and Diabetes Association.

Dr. Ozden Gul is a general surgeon trained at Istanbul University Cerrahpaşa Faculty of Medicine. She completed her general surgery residency at Haydarpaşa Numune Training and Research Hospital. She has decades of surgical experience and is fluent in English.

Her practice includes gastrointestinal surgery (gallbladder disease, hernias, appendicitis, GI disorders). She also treats endocrine conditions (thyroid, parathyroid, adrenal) and breast disease, both benign and malignant. She manages emergency and trauma cases. She offers minimally invasive laparoscopic surgery.

She has worked at Haydarpaşa Numune, Bakırköy, Taksim First Aid, Uzunköprü State, Keşan State, Beykoz Medical Center, and Medivia Hospital. She is known for meticulous technique and patient-centered care.

Dr. Eda Tereh Akay is a general surgeon. She completed specialty training in general surgery and provides patient-centered care with modern techniques.

Her expertise includes gastrointestinal surgery (gallbladder, hernias, appendicitis, gastrointestinal tract disorders), endocrine surgery (thyroid, parathyroid, adrenal), breast surgery (benign and malignant), minimally invasive laparoscopic procedures, and emergency and trauma surgery. She is known for precise surgical skills and a strong focus on patient safety.

Specializations

Diabetes (Sugar)

Thyroid

Hypertension

cholesterol

stomach diseases

intestinal diseases

osteoporosis

Experience

Azerbaijan Gusar Central Hospital

Vreden Russian Research Institute of Traumatology and Orthopedics

Azerbaijan Göranboy, First Lieutenant Doctor

Hospital Park Darıca Hospital

BAH

Education

Azerbaijan Medical Faculty (2015)

Kocaeli Derince Training and Research Hospital (2016-2020)

Vocational Trainings, Courses and Conferences Attended

Internal Medicine Congress

Gastro Academy

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

Prof. Dr. Ayla Güven graduated from Gazi University Faculty of Medicine in 1986 and completed her mandatory service at Ege University Chest Diseases Bornova Tuberculosis Dispensary. Following that, she started her specialization training in the Department of Child Health and Diseases at Hacettepe University Faculty of Medicine and became a specialist in 1993. After working as a specialist physician, she began her subspecialty training in Pediatric Endocrinology at Gazi University Faculty of Medicine in September 2000 and became a Pediatric Endocrinology specialist in December 2002. In April 2003, she started working as an assistant professor at Ondokuz Mayıs University Faculty of Medicine and worked in the Pediatric Endocrinology and Diabetes Department at the Children’s Hospital of Pittsburgh, USA, between May and November 2003. After returning to Turkey, she continued to work at Ondokuz Mayıs University Faculty of Medicine. This clinic was the first to offer Pediatric Endocrinology subspecialty training in the country. During her time there, one person became a Pediatric Endocrinology specialist. On March 13, 2006, she successfully passed the exam and received the title of Associate Professor. Since December 2006, she has been working at Göztepe Training and Research Hospital. In this hospital, she was appointed as the head of the Pediatric Endocrinology clinic in November 2008 and started providing Pediatric Endocrinology subspecialty training for the first time in the hospital in March 2009. Between 2009 and 2017, she trained five Pediatric Endocrinology specialists. Most of the physicians she currently provides subspecialty training to have gained academic titles as professors and associate professors. After working as a training instructor at Health Sciences University Zeynep Kamil Hospital for Children and Women from 2017 to 2021, she retired at her request from public service. Between 2021 and 2024, she worked as a Pediatric Endocrinology specialist at Başkent University Faculty of Medicine, Department of Child Health and Diseases, at Istanbul Hospital.

MEDICAL INTERESTS

• Menstrual disorders and increased hair growth in girls, polycystic ovary syndrome
• Adrenal diseases
• Sexual development disorders
• Type 2 diabetes
• Thyroid diseases
• Growth disorders: short stature and tall stature
• Puberty disorders: precocious puberty-delayed puberty

Assoc. Prof. Dr. Saydam Mehmet is a general surgeon at Lokman Hekim Istanbul Hospital (2025–present). His work covers oncologic, endocrine, and metabolic surgery. He performs laparoscopic surgery, including hernia repair and anti-reflux procedures. He also treats morbid obesity and type 2 diabetes. Sleeve gastrectomy is among his key procedures.

Education: He graduated from the Gülhane Military Medical Academy, Faculty of Medicine (1995–2001). He completed his general surgery residency there (2004–2009). He was a research fellow at the University of Miami/Jackson Memorial Hospital, Ryder Trauma Center (2015–2016).

Experience: He worked as a general surgery specialist at GATA Haydarpaşa, Girne Military, and Mevki Military. He later served as Associate Professor of General Surgery at Dışkapı, Sancaktepe, and Medical Park Gebze. Earlier, he practiced as a general practitioner in military medical services.

Endocrinologist

Education and Expertise

(1994 – 2000) - GATA Faculty of Medicine Ankara

(2003 – 2007) - GATA Medical Faculty Pediatrics and Diseases

(2008 -2011) - Ankara University Pediatric Endocrinology

(03.03.2014) - Associate Professorship, Pediatric Endocrinology

(17.07.2019) - Professorship, Istinye University Faculty of Medicine

Experience

(2001 – 2003) - Special Forces Command/Ankara

(2007 – 2008) - Etimesgut Military Hospital/Ankara

(2011 – 2013) - GATA Medical Faculty Hospital/Ankara

(2013-2015) - GATA Haydarpasa Training Hospital/Istanbul

(05.2015-09.10.2017) - May 2015-09.10.2017 - Süleymaniye Gynecology and Pediatrics Training and Research Hospital/Istanbul

(07.2015 – 01.2016) - Suleymaniye Gynecology and Pediatrics Training and Research Hospital Pediatrics Administrative Responsibility/Istanbul

01.2016 - 09.11.2017 - Suleymaniye Gynecology and Pediatrics Training and Research Hospital Pediatric Clinic Education Responsibility / Istanbul

(03.03.2016 - 30.10.2017) - Süleymaniye Gynecology and Pediatrics Training and Research Hospital Management

(2017-2020) - Istinye University Faculty of Medicine Faculty Member

(2020-Present) - Istanbul Aydın University Faculty of Medicine Faculty Member

(20.10.2020-Present) - Head of Department of Child Health and Diseases, Faculty of Medicine, Istanbul Aydın University

Courses and Certificates

2001 - Flight Doctor Course

2010 - Project Management Training Course

2013 - Basic Epidemiology course

2018 - Trainer Training Course

Professional Memberships

Pediatric Endocrinology and Diabetes Association

European Society of Pediatric Endocrinology (ESPE)

Istanbul Medical Chamber

Awards

İhsan Turan, Ian Hutchins, Bülent Hacıhamdioğlu, Leman Damla Kotan, Fatih Gürbüz, Mehmet Taştan, Ayça Ulubay, Eda Mengen, Bilgin Yüksel, Susan Wray, Ali Kemal Topaloğlu. CCDC141 Mutation in idiopathic hypogonadotropic hypogonadism. XVI. First Prize in Oral Presentation at the National Pediatric Endocrine and Diabetes Congress.

Bülent Hacıhamdioğlu, Gönül Öçal, Merih Berberoğlu, ZeynepŞıklar, Ercan Tutar, Suat Fitöz, Gökhan Nergizoğlu, Şenay Savaş Erdeve, Emine Çamtosun. Control of premature microvascular aging and cardiovascular performance in obese adolescents. XVI. was held in Samsun on 6-10 November 2012. Second Prize in Oral Presentation at the National Pediatric Endocrine and Diabetes Congress.

Z. Siklar, G. Ocal, M. Berberoglu, B. Hacıhamdioğlu, Ş. Savas Erdeve, Y. Egin, N. Akar. Control of hypercoagulability caused by obesity in children with endothelial microparticle level and thrombin generation test, and the relationship between risk and metabolic parameters. First Prize in Oral Presentation at the 55th Turkish National Pediatrics Congress held in Antalya on 12-16 October 2011

Z. Şıklar, V. Topçu, P. Kocaay, M. Berberoğlu, B. Hacıhamdioğlu, S.S. Erdeve, H.R. Ilgin, A. Tükün, G. Öcal. Clinical Characteristics of Our Cases with Mutation in the Androgen Receptor Gene. XVI. was held in Samsun on 6-10 November 2012. First Prize in Oral Presentation at the National Pediatric Endocrine and Diabetes Congress.

Specialist of regenerative medicine

Pediatric Endocrinology

Fields of Study and Interests

 Growth delays

 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 gynecomastia in children

 Adrenal gland disorders

Education

 Undergraduate Faculty of Medicine Istanbul University 1993-1997

 Master's Degree Faculty of Medicine Istanbul University 1997-1999

 Medical Specialization Child Health and Diseases

 Ondokuz Mayıs University 1999-2004

 Minor Specialization Pediatric Endocrinology Ondokuz Mayıs University 2004-2007

Career

 Research Asst. Ondokuz Mayıs University Faculty of Medicine 1999-2004 Minor Research

Assistant Ondokuz Mayıs University Faculty of Medicine (Pediatric Endocrinology) 2004-

2007

 Asst. Assoc. Dr Ondokuz Mayıs University Faculty of Medicine 2007

 Specialist Dr. Gülhane Military Medical Academy (Military Service) 2007-2008 Specialist.

Dr. Bakırköy Gynecology and Pediatrics Training and Research Hospital (Compulsory

Service) 2008-2011 Asst.Prof. 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-

Publications: Ulusalararası Bilimsel Dergilerde yayımlanmış eserler 7.1.1. Bek K, Ozkaya

O, Fisgin T, Aliyazicioglu Y, Paksu MS, Ozgen T, Albayrak D, Baysal K. Protein Z and natural

anticoagulants in children on peritoneal dialysis and hemodialysis. Pediatr Nephrol.

Dr. Murat Erol is a general dentist with over 20 years of clinical experience. He graduated from Ege University Faculty of Dentistry in 2002. He provides care in English.

He offers preventive care and restorative treatments, including aesthetic fillings, crowns, and bridges. He also performs root canal therapy. His aesthetic services include whitening, composite bonding, and smile design. He provides fixed and removable prosthetics. His plans focus on oral function and natural aesthetics. Each treatment is tailored to the patient.

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.