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Dr. Mert Öztaş Rheumatology

Dr. Mert Öztaş

✓ Medically verified profile
Rheumatology

Dr. Mert Öztaş

✓ Medically verified profile
14+ years experienceLanguages: Turkish, EnglishOnline consultationAcibadem Atakent Hospital · İstanbul
★★★★★ From 2,400+ verified Acibadem patient reviews
Dr. Mert Öztaş

Quick answer

Dr. Mert Öztaş is a Rheumatology specialist at Acibadem Atakent Hospital in İstanbul with 14+ years of experience.

He treats retroperitoneal fibrosis, giant cell arteritis, dermatomyositis, statin-induced dermatomyositis, inflammatory rheumatic diseases, and autoimmune musculoskeletal diseases, and provides rituximab, colchicine, and hydroxychloroquine therapy in rheumatic diseases. He consults in Turkish and English and offers online video consultation.

Profile

About Dr. Mert Öztaş

Dr. Mert Öztaş is a rheumatologist with 14 years of experience. His listed areas of expertise include inflammatory rheumatic diseases, autoimmune musculoskeletal diseases, retroperitoneal fibrosis, giant cell arteritis, dermatomyositis, rituximab therapy for retroperitoneal fibrosis, and colchicine therapy in rheumatic diseases.

Dr. Öztaş completed rheumatology specialization at Istanbul University Cerrahpasa Faculty of Medicine in 2021. He was at Istanbul University Cerrahpasa Medical Faculty, Rheumatology, from 2018 to 2021, and at Health Sciences University Istanbul Training and Research Hospital from 2021 to 2023. He joined Acibadem Health Group in 2023. He practises at Acibadem Atakent Hospital in İstanbul, Türkiye.

The profile lists 3 professional bodies, among them EMEUNET (Emerging EULAR Network), the Turkish Rheumatology Association, and TRD-G (Turkish Rheumatology Association-Young).

The profile lists 6 publications dated between 2017 and 2023. Their subjects include retroperitoneal fibrosis and rituximab, giant cell arteritis, and dermatomyositis associated with atorvastatin. Other listed papers address rheumatic diseases in relation to colchicine or hydroxychloroquine and statistical significance thresholds in observational studies and randomized controlled trials.

Dr. Öztaş speaks Turkish and English. Online consultation is available, allowing patients abroad to speak with the doctor before travelling.

Clinical Focus

Areas of Expertise

Conditions treated and procedures performed by this specialist.

Retroperitoneal fibrosisGiant cell arteritisDermatomyositisStatin-induced dermatomyositisInflammatory rheumatic diseasesAutoimmune musculoskeletal diseasesRituximab therapy for retroperitoneal fibrosisColchicine therapy in rheumatic diseasesHydroxychloroquine therapy in rheumatic diseases
Background

Education

  • 2021Istanbul University Cerrahpasa Faculty of Medicine Rheumatology
  • 2018Istanbul University Cerrahpaşa Faculty of Medicine Internal Medicine
  • 2012Istanbul University Cerrahpasa Faculty of Medicine
Career

Professional Experience

  • 2023Acibadem Health Group
  • 2021–2023Health Sciences University Istanbul Training and Research Hospital
  • 2018–2021Istanbul University Cerrahpasa Medical Faculty, Rheumatology
  • 2013–2018Istanbul University Cerrahpasa Faculty of Medicine, Internal Medicine
  • 2012Devrek State Hospital
Affiliations

Professional Memberships

  • TRD-G (Turkish Rheumatology Association-Young)
  • Turkish Rheumatology Association
  • EMEUNET (Emerging EULAR Network)
Research

Selected Publications

  • Rituximab in the management of retroperitoneal fibrosis: A single tertiary rheumatology care center experience Int J Rheum Dis. 2023 Jun 26. doi: 10.1111/1756-185X.14798. Oztas M, Altun I, Ayla AY, Cerme E, Demirdag C, Asa S, Sonmezoglu K, Ugurlu S.
  • Frequency and severity of COVID-19 in patients with various rheumatic diseases treated regularly with colchicine or hydroxychloroquine. J Med Virol. 2022 Jul;94(7):3431-3437. Oztas M, Bektas M, Karacan I, Aliyeva N, Dag A, Aghamuradov S, Cevirgen SB, Sari S, Bolayirli M, Can G, Hatemi G, Seyahi E, Ozdogan H, Gul A, Ugurlu S
  • Presentation characteristics and clinical outcome of patients with giant cell arteritis followed by a single center Turk J Med Sci. 2021 Sep 27. doi: 10.3906/sag-2102-263. Öztaş M, Özgül H, Seyahi E, Uğurlu S.
  • Giant Cell Arteritis with Concomitant Chronic Myelomonocytic Leukemia Turk J Haematol. 2020 Jul 23. PMID: 32702949. Öztaş M, Muradov İ, Erçalışkan A, Demiröz AS, Batur Ş, Eşkazan AE, Uğurlu S.
  • Changing the traditional p-value significance threshold to .005 does not decrease the number of statistically significant p-values in observational studies more than in randomized controlled trials. Clin Exp Rheumatol. 2020 Nov 17. Oztas M, Dincer ZT, Sut N, Yazici H.
  • Atorvastatin-induced dermatomyositis. Rheumatol Int. 2017 Jul;37(7):1217-1219. PMID:28238074 Oztas M, Ugurlu S, Aydin O.
Good to Know

Frequently Asked Questions

What is Dr. Mert Öztaş's specialty?
Dr. Mert Öztaş is a specialist in Rheumatology 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. Mert Öztaş practise at?
Dr. Mert Öztaş 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. Mert Öztaş?
Consultations with Dr. Mert Öztaş 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. Mert Öztaş?
You can request an appointment with Dr. Mert Öztaş 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. Mert Öztaş?
Yes. Dr. Mert Öztaş 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. Mert Öztaş have?
Dr. Mert Öztaş has around 14 years of professional experience in Rheumatology. A summary of education, experience and professional memberships is available on this page.
Can international patients arrange treatment with Dr. Mert Öztaş?
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. Mert Öztaş?
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.
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Patient Voices

What patients say about Dr. Mert Öztaş

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

“My arthritis treatment exceeded every expectation I had. Dr. Öztaş was calm, precise and deeply reassuring. I have already recommended Acibadem to my family.”

Lisa G. · Canada April 2025
★★★★★ Verified Patient

“Thanks to the team here, my liver care could not have gone better. Prof. Dr. Boztaş was calm, precise and deeply reassuring. Everything was clearly explained in my own language.”

Maha O. · Qatar November 2025
★★★★★ Verified Patient

“Years of worry ended once I came here for my reflux treatment. Prof. Dr. Öztaş made a stressful situation feel completely manageable. The international patient office coordinated everything perfectly.”

Grace B. · Ethiopia April 2025
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