Page 4 - Best endocrinologists: TOP 97 doctors

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.

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.

Areas of Interests

• Pediatric Genitourinary Reconstrictive Surgery
• Hypospadias
• Circumssion
• Oncological Surgery
• Congenital Abnormalities of Upper and Lower Urinary System
• Newborn Surgery
• Pediatric Abdominal Surgery

Education
 

• 1997 -  19 Mayıs University
• 1998 National Pediatric Surgery Congress Best Reearch Study
• 2001-  Kocaeli University
• 2007 – Kosova Government
• 2009 – Yeditepe University
• 2009 – Suudi Arab be Congeress Best Clinical Study

Experience
 

• FMV Işık Highschool
• İstanbul University Cerrahpaşa Medical Faculty
• Ondokuz Mayıs University
• Zeynep Kamil Childrens Hospital
• Kocaeli University Medical Faculty
• UT Southwestern Medical Center Pediatric Urology, Dallas, USA
• Ege University Medical Center Pediatric Urology
• Yeditepe University

Prof. Dr. Selami Sozubir has authored 65 scientific publications, which have received over 11,000 reads and nearly 1,000 citations, reflecting his strong contribution to the field of pediatric surgery and urology.

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. Derya Zengin Metli is a physician specialized in physical therapy and rehabilitation. She graduated from Akdeniz University Faculty of Medicine. Her practice includes physical therapy and physiotherapy services. She also consults in English.

Her clinical scope includes musculoskeletal rehabilitation for back, neck, and joint pain, and herniated discs. She provides neurological rehabilitation for stroke and multiple sclerosis. She also offers post-surgical rehabilitation after orthopedic and neurosurgical procedures, sports injury prevention and treatment, and chronic pain management for fibromyalgia and arthritis.

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.

Arti Clinic holds an International Health Tourism Authorization Certificate, guaranteeing top-notch care for international patients. The multilingual team is proficient in English, French, Spanish, Arabic, Russian, and Turkish.

Alongside his clinical work, Dr. Alper Sismanoglu is also an Assistant Professor and Lecturer at the Medical Faculty of Istanbul Altınbaş University. He has over 20 publications in international and national journals. Dr. Sismanoglu is a sought-after expert frequently featured on Turkish TV shows and in various media outlets.

"Being a proud father of two amazing daughters, I deeply understand the importance of family. Throughout my medical career, my primary focus has been on assisting couples who long to have children. So, if you have any questions or concerns, don't hesitate to reach out to me. I'm more than happy to lend a helping hand!" says Dr. Alper.

MEMBERSHIPS

• European Society of Human Reproduction and Embryology (ESHRE)
• Reproductive Medical and Surgery Association of Turkey (UTD)
• Turkish Society of Obstetrics and Gynecology (TJOD)
• Turkish Association of Reproductive Health and Infertility (TSRM)

SPECIALIZATIONS 

• IVF treatment
• Obstetrics
• Infertility and reproductive endocrinology
• Gynecological endoscopy
• Infertility surgery

ABOUT THE DOCTOR:

Director of the National Society of Chinese Medicine

Member of the Professional Committee on Encephalopathies

Member of the Professional Committee on Internal Medicine

Member of the Professional Committee of Traditional Chinese Medicine

Member of the Professional Committee on Collateral Diseases

Member of the Brain Diseases Department of the Beijing Society of Traditional Chinese Medicine

President of the China Health Professionals Association

Director of the International Association for the Promotion of Scientific Medical Exchange

Head of the Integrative Chinese and Western Medicine Group, National Clinical Center for Neurological Diseases

Deputy Director of the Department of Integrative Traditional Chinese and Western Medicine, Capital Medical University

Deputy Director of Beijing Institute of Integrative Traditional Chinese and Western Medicine

• Editor of the Traditional Chinese Medicine and Polypathology in the Elderly Sections of the Austin Journal of Multiple Sclerosis and Neuroimmunology

Project Manager of the National and Beijing Natural Science Foundations

Author of more than 180 scientific articles and 8 scientific books

Winner of the Beijing Science and Technology Prize and the China Academy of Chinese Medicine

National Outstanding Clinical Talent of Chinese Medicine

Leader in clinical integrative Chinese and Western medicine

• Head of Scientific Doctors of Chinese Medicine

SPECIALIZATION:

• -demyelinating diseases of the nervous system
• - multiple sclerosis
• - neuromyelitis opticus
• - brain tumors
• -traumatic brain injury
• -encephalopathy
• -stroke
• -dizziness
• -insomnia
• -headache
• -motor neuron disease
• -complex diseases of the nervous system
• -endocrine disorders
• -metabolic syndrome
• - a state of semi-illness
• - chronic fatigue

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

Head of Teaching at the Puerto Vallarta Regional Hospital

2020-2023

Medical records manager at the Regional Hospital of Puerto Vallarta 2 months 2020

General practitioner in private medical office

2015-2022

Doctor in charge of weight control clinic

2013-2014

Medical assistant in dermatology clinic

2008-2013

Medical Assistant in Dermatological procedures.

 Medical Assistant in minimally invasive surgical procedures

 Operation of fractional laser machine - IPIXEL-ER and

facial rejuvenation with IPL.

 Experience in laser hair removal with Intense Pulsed Light and

radiofrequency

 Experience with ultrasonic cavitation

 Experience with ultraviolet (UV) light phototherapy machine for the

treatment of psoriasis and vitiligo.

 Experience assisting in Botox and Fillers procedures.

 Biomagnet certified by the Higher Institute of Biomagnetism

doctor ISAAC GOIZ DURAN

 Experience in clinical records

 Training in continuing education and professional development of teachers

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.

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.

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.

Dr. Victor Alexander Krol - Chief of Gastroenterology, Internal Medicine and Obesity Treatment Center at Martinus Hospital

Dr. Victor Alexander Krol is a highly qualified specialist, heading the departments of gastroenterology and internal medicine. With many years of experience and deep knowledge in his field, Dr. Krol has established himself as an outstanding expert, providing patients with comprehensive treatment and an individual approach. He actively uses the latest methods of diagnosis and treatment of diseases of the gastrointestinal tract, metabolism, as well as diseases of the cardiovascular and respiratory systems.

Dr. Krol is also the director of the certified Obesity Treatment Center at Martinus Hospital, which provides surgical and endoscopic treatments for obesity. The center uses advanced technology to diagnose and treat obesity (adiposis), including methods such as bariatric surgery, endoscopic weight loss, and specialized programs for patients with different stages of obesity. The center is certified to high standards and has excellent results in the treatment of this serious disease.

The Gastroenterology Department, headed by Dr. Krol, diagnoses and treats diseases of the stomach, intestines, liver, pancreas, and gallbladder. The doctors of the department use a wide range of methods, including endoscopic procedures, ultrasound, and other modern diagnostic technologies.

The Department of Internal Medicine covers a wide range of diseases, including cardiology, diabetology, infectology, and therapy of respiratory and renal diseases. Dr. Krol and his team provide a comprehensive approach to treatment using the most advanced methods of medicine.

Thanks to his high professionalism and humane approach to each patient, Dr. Krol deservedly enjoys the respect of colleagues and patients.

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.

Prof Spiezia works for our private clinic in Naples, Clinica Ruesch. He is also the Head of the Endocrine Surgery Operative Unit at Ospedale del Mare Hospital, specializing in surgical procedures related to endocrine disorders, particularly thyroid and adrenal surgeries. He is also the Head of the Endocrine Surgery Regional Network, and consultant in the field of diagnostics and ultrasound-interventional therapy. 

Professor specializes in all endocrine pathologies with minimally invasive thyroid-saving interventions, on the parathyroids and lymph nodes, through video-assisted techniques, thermoablation with radio frequency for thyroid nodules, microwave thermoablation, and with laser.

He diagnoses the thyroid and lymph nodes by means of ultrasound-guided needle aspiration. Qualified as a robotic surgeon, coordinates training schools in endocrine ultrasound and has promoted various scientific meetings and training courses, emphasizing the care pathways for patients with thyroid pathologies. 

EDUCATION

Prof Stefano Spiezia holds a degree in Medicine and Surgery from the University of Naples, graduating cum laude in 1981. He specialized in Emergency Surgery at the same university, obtaining his diploma in 1986. In 1993, he completed a six-month specialization course in Minimally Invasive Surgery, followed by a managerial course in 1996 focused on healthcare organization management. He received accreditation for ultrasound units in 1997 and achieved a II level University Master’s Degree in Endocrine Surgery from the Seconda Università degli studi di Naples in 2007. This extensive educational background underscores his expertise in surgical practice and healthcare management.

PROFESSIONAL ACTIVITY

Stefano Spiezia has held several significant roles both in Italy and internationally, including:

• Head of the Endocrine Surgery Operative Unit, Naples, Italy
• Adjunct Professor at the University of Turin, Italy (2011-2025)
• Professor at Second University of Naples for Endocrine surgery, and Interventional diagnostics of the neck (1998-2014)
• Coordinator of the Training School at the Italian Society of Ultrasound in Medicine and Biology (SIUMB).
• Director and founder of the "Save Your Thyroid" International School of SIUMB, operating in Naples, Italy, and Cairo, Egypt
• Consultant in the Visiting Professor program at the Saudi German Hospital in Cairo, Egypt.
• Speaker and Organizer at various international congresses, including the ACTA Congress in Taipei, and the American Thyroid Association Congress in Chicago 

RESEARCH, PUBLICATIONS, MEMBERSHIP

Prof. Stefano Spiezia's research primarily focuses on endocrine disorders, particularly in the context of thyroid and adrenal surgeries: the development and application of minimally invasive surgical techniques, particularly for thyroid and adrenal surgeries, and is recognized as an expert in thermal ablation of the thyroid. 

In Clinical Trials, he is the Principal Investigator (PI) of the first in-human clinical trial (NP-TF-024) aimed at treating benign thyroid nodules, which highlights his commitment to advancing treatment options in endocrine surgery.

Stefano Spiezia is a member of several professional societies, including:

• Founder member of the EUROMIT in Minimally Invasive Thyroid Treatments
• American Thyroid Association: A leading organization focused on thyroid health and research.
• North American Society for Interventional Thyroidology: This society is dedicated to advancing the field of interventional thyroidology.
• Italian Society of Endocrine Surgery (SIUEC): He is a member and serves as a regional delegate in this society, which focuses on endocrine surgical practices in Italy.
• Italian Society of Ultrasound in Medicine and Biology (SIUMB): He is a member and currently serves as the General Secretary of this society, which promotes the use of ultrasound in medical practice

His  Editorial Roles:  Review Editor on the Editorial Board of Thyroid Endocrinology and a member of the Video Endocrinology editorial board in the ATA. 

Author of 7 books and 68 scientific publications.

His work has been cited 3,466 times across 2,256 documents, indicating a significant impact in his field.

Professional Background

• Medical Education: Licensed Medical Doctor, UNAM School of Medicine, Mexico City.
• Advanced Studies: Degrees and diplomas in Business Administration, Neuroscience, Neuroanatomy, and Aesthetic Medicine.
• Certifications and Workshops:
  • International Congress on Regenerative Medicine and Cell Therapy.
  • Congress on Regenerative and Functional Medicine.
  • Workshop on Regenerative and Functional Medicine.

Areas of Expertise

• Regenerative Medicine & Mesenchymal Stem Cell Applications.
• Neuroscience & Neuroanatomy.
• Functional and Aesthetic Medicine.