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Prof. Dr. Özlem Çelik Endocrinology

Prof. Dr. Özlem Çelik

✓ Medically verified profile
Endocrinology

Prof. Dr. Özlem Çelik

✓ Medically verified profile
33+ years experienceLanguages: Turkish, EnglishOnline consultationAcibadem Atakent Hospital · İstanbul
★★★★★ From 2,400+ verified Acibadem patient reviews
Prof. Dr. Özlem Çelik
This Doctor Endocrinology Specialty 33+ Years Experience Acibadem Atakent Hospital Hospital Book an AppointmentBook

Quick answer

Prof. Dr. Özlem Çelik is an endocrinology specialist at Acibadem Atakent Hospital. She treats type 1 and type 2 diabetes, thyroid diseases and thyroid cancer, obesity, osteoporosis, menopause, and hormonal disorders including adrenal and pituitary conditions. Her areas of interest also include gestational diabetes and continuous glucose monitoring systems.

Profile

About Prof. Dr. Özlem Çelik

Prof. Dr. Özlem Çelik is an endocrinology specialist at Acibadem Atakent Hospital. Her clinical interests include type 1 and type 2 diabetes, obesity, thyroid disorders and thyroid cancer, osteoporosis, menopause, and endocrine conditions affecting the adrenal and pituitary glands.

She graduated from Istanbul University Istanbul Faculty of Medicine in 1999, completed Internal Medicine training at Trakya University Faculty of Medicine in 2004, and completed Endocrinology and Metabolic Diseases training at Istanbul University Cerrahpaşa Faculty of Medicine in 2011. Her previous experience includes Acıbadem Healthcare Services, Acıbadem Beylikdüzü Medical Center, Özel Avcılar Medicana Hospital, and Özel Ege Sağlık Hospital.

International patients can consult Prof. Dr. Çelik for evaluation and management of diabetes, including continuous glucose monitoring systems, thyroid conditions, gestational diabetes, menopause-related concerns, and complex hormonal disorders. She is a member of national and international endocrinology and internal medicine associations.

Clinical Focus

Areas of Expertise

Conditions treated and procedures performed by this specialist.

Type 1 diabetes treatmentType 2 diabetes treatmentObesityThyroid disease treatmentThyroid cancerOsteoporosisGestational diabetesMenopauseCushing syndromeAdrenal gland cancerAcromegalyAddison's disease
Specialisation

Subspecialties

  • Thyroid Diseases and Treatment
  • Menopoz
Background

Education

  • 2011İstanbul University Cerrahpaşa Faculty of Medicine Endocrinology and Metabolic Diseases
  • 2004Trakya University Faculty of Medicine Internal Medicine
  • 1993–1999İstanbul University İstanbul Faculty of Medicine
Career

Professional Experience

  • 2007–2008Acıbadem Beylikdüzü Medical Center
  • 2007Acıbadem Healthcare Services
  • 2006Özel Avcılar Medicana Hospital
  • 2005–2006Özel Ege Sağlık Hospital Internal Medicine Clinic
  • 2004–2005Trakya University Faculty of Medicine / Department of Internal Medicine
Affiliations

Professional Memberships

  • Turkish Endocrinology and Metabolism Association
  • Turkish Society of Internal Medicine Specialists
  • The Endocrine Society
  • European Society of Endocrinology
Research

Selected Publications

  • Atherogenicity and modifiable risk factors in hypertension: Blood pressurei obesityi smokingi salt. Sen S., Üstündağ S., Sevinir Ş., Değirmenci A., Çelik Ö. V National Congress of Hypertension and Renal Diseases.
  • Pheochromocytoma presenting with rhabdomyolysis and acute renal failure: a case report. Ren Fail 2013, (Epub ahead of print) Celik H, Celik O, Guldiken S, Inal V, Puyan FO, Tugrul A.
  • Diagnostic dilemma: metastatic bone malignancy or primary hyperparathyroidism with brown tumor. Open Journal of Internal Medicine, 2013, 3, 60-62. Hatipoglu E, Eskazan AE, Celik O, Kantarci F, Kadioglu P.
  • The association of carotid cavernous fistula with Graves” ophthalmopathy. Indian J Ophthalmol 2013, 61(7): 349-51, doi: 10.4103/0301-4738.109533. Celik O, Buyuktas D, Islak C, Sarici AM, Gundogdu AS.
  • Acromegaly is not associated with irritable bowel syndrome: a pilot study. Neuroendocrinology Letters 2013, 34(4): 71-74. E. Caglar, E. Hatipoglu, M. Niyazoglu, O. Celik, M. Tuncer, P. Kadioglu.
  • Late-Onset Hypogonadism in Male Patients Over 60 Years of Age with Metabolic Syndrome. Turkish Journal of Endocrinology and Metabolism 2013, 17:22-7. E.Kara, O. Celik, A. Kadioglu, P. Kadioglu.
  • Diabetic Ketoacidosis Mimicking Hyperemesis Gravidarum:Case Report. Turkish Journal of Endocrinology and Metabolism 2011, 15:71-73. Z.O.Siva, O.Celik, D.Buyuktas, Y.Dikmen, E.Yılmaz.
  • Rhabdomyolysis secondary to severe hypokalemia: Case Report Turkish Journal of Endocrinology and Metabolism 2010, 14:100-102. O.Celik, I.Bavunoglu, M.Yürüyen, A.S.Gündogdu, P.Kadioglu.
  • Autoimmune pituitaryitis. Turkiye Klinikleri J Endocrin-Special Topics 2010, 3(2):6-13. O.Celik, P.Kadioglu.
  • A retrospective study of 39 cases of multiple myeloma treated with conventional treatment methods Turgut B, Demir M, Çelik Ö, Pamuk G, Ekuklu G. 29th National Congress of Turkish Society of Hematology:2002 – October 25-28;Antalya
Good to Know

Frequently Asked Questions

What is Dr. Özlem Çelik's specialty?
Dr. Özlem Çelik is a specialist in Endocrinology at Acibadem. For a personalised assessment, the Acibadem international patient team can review your medical history and reports and explain the suitable next steps.
Which hospital does Dr. Özlem Çelik practise at?
Dr. Özlem Çelik sees patients at Acibadem Atakent Hospital in İstanbul. The international patient team can confirm current availability and help you plan a consultation or visit.
What languages can I use when consulting Dr. Özlem Çelik?
Consultations with Dr. Özlem Çelik are supported in Turkish and English. In addition, Acibadem provides multilingual coordination and interpreter support so international patients can communicate clearly throughout their care.
How can I book an appointment with Dr. Özlem Çelik?
You can request an appointment with Dr. Özlem Çelik using the appointment form on this page, or by contacting the Acibadem international patient team by phone or WhatsApp. After you share your details, the team checks availability and confirms your appointment, usually within 24 hours.
Is an online video consultation available with Dr. Özlem Çelik?
Yes. Dr. Özlem Çelik offers online video consultations, so you can discuss your condition and reports with the specialist before making any travel arrangements. The international patient team can help you schedule a secure video visit.
How many years of experience does Dr. Özlem Çelik have?
Dr. Özlem Çelik has around 33 years of professional experience in Endocrinology. A summary of education, experience and professional memberships is available on this page.
Can international patients arrange treatment with Dr. Özlem Çelik?
Yes. Acibadem supports international patients end to end — from the first consultation and treatment planning through appointment scheduling, interpretation during the stay and follow-up after returning home. Sharing your case for an initial assessment is free of charge.
How do I get a second opinion involving Dr. Özlem Çelik?
You can request an independent review of your diagnosis and proposed treatment. Share your medical reports through the consultation or "Ask a Doctor" form on this site, and the team will arrange a specialist review and explain the available options.
Care without borders

A dedicated team, from first message to follow-up

Our international patient office coordinates your appointment, travel and treatment across the Acıbadem network — including 7 JCI-accredited hospitals — and stays with you in your own language, every step of the way.

Book an Appointment

Schedule your appointment with Prof. Dr. Özlem Çelik

Choose a date and time that suits you. Our international patient team will check availability and confirm your appointment — usually within 24 hours.

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Prof. Dr. Özlem Çelik Appointment with Özlem Çelik Endocrinology

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Where

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Treatments Performed

Patient Voices

What patients say about Prof. Dr. Özlem Çelik

★★★★★From 2,400+ verified patient reviews
★★★★★ Verified Patient

“My anaesthesia care exceeded every expectation I had. Dr. Çelik is clearly an expert and it showed at every stage. I have already recommended Acibadem to my family.”

Petar Y. · Serbia December 2025
★★★★★ Verified Patient

“I flew in specifically for sleep apnea treatment and was treated with the utmost professionalism. Prof. Dr. Çelikel was thorough, professional and genuinely caring. I only wish I had come here sooner.”

Salma O. · Saudi Arabia May 2025
★★★★★ Verified Patient

“The care I received for my COPD management was world-class from start to finish. Prof. Dr. Çelikel inspired complete confidence from the first meeting. The follow-up care was just as good as the treatment itself.”

Mirela S. · Serbia June 2025
★★★★☆ Verified Patient

“Choosing Acibadem for my arrhythmia treatment was the best decision I made. Assoc. Prof. Dr. Çelik was calm, precise and deeply reassuring.”

Majid G. · United Arab Emirates January 2025
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