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Prof. Dr. Dilek Biyik Özkaya Dermatology

Prof. Dr. Dilek Biyik Özkaya

✓ Medically verified profile
Dermatology

Prof. Dr. Dilek Biyik Özkaya

✓ Medically verified profile
22+ years experienceLanguages: Turkish, EnglishOnline consultationAcibadem Altunizade Hospital · İstanbul
★★★★★ From 2,400+ verified Acibadem patient reviews
Prof. Dr. Dilek Biyik Özkaya
Profile

About Prof. Dr. Dilek Biyik Özkaya

Quick answer

Prof. Dr. Dilek Biyik Özkaya is a dermatologist at Acibadem Altunizade Hospital in İstanbul with 22+ years of experience.

She treats psoriasis, pediatric atopic dermatitis, mycosis fungoides, onychomycosis, congenital melanocytic nevi, Spitz nevi, melanocytic nevi, leukocytoclastic and cutaneous vasculitis, pigmented purpuric dermatoses, chronic inflammatory skin diseases, and venereal diseases, and she performs dermoscopy. She offers consultations in Turkish and English, including online video consultation.

Prof. Dilek Biyik Özkaya is a board-certified dermatologist with extensive clinical experience in medical and pediatric dermatology. She completed advanced training in Skin and Venereal Diseases at Bezmi Alem Valide Sultan Vakıf Gureba Training and Research Hospital in 2009 and currently practices with Acibadem Health Group since 2023. Her clinical interests include general dermatology, venereology, pediatric dermatology and the management of chronic inflammatory skin conditions such as psoriasis.

She is actively involved in the professional community as a member of the Skin and Venereal Diseases Association, the Pediatric Dermatology Association, the European Academy of Dermatology and Venereology (EADV), the Turkish Dermatology Association, and the Psoriasis Association. Known for a patient-centered approach, she emphasizes clear communication, evidence-based care, and treatments tailored to individual needs across all age groups.

Clinical Focus

Areas of Expertise

Conditions treated and procedures performed by this specialist.

PsoriasisPediatric atopic dermatitisMycosis fungoidesOnychomycosisCongenital melanocytic neviSpitz neviMelanocytic neviLeukocytoclastic vasculitisCutaneous vasculitisPigmented purpuric dermatosesChronic inflammatory skin diseasesVenereal diseasesDermoscopy
Background

Education

  • 2009Bezmi Alem Valide Sultan Vakıf Gureba Training and Research Hospital Skin and Venereal Diseases
  • 2002Istanbul University Istanbul Faculty of Medicine
Career

Professional Experience

  • 2023Acibadem Health Group
  • 2012–2018Bezmialem Vakif University Faculty of Medicine / Skin and Venereal Diseases Specialist
  • 2010–2012Bağcılar Training and Research Hospital / Skin and Venereal Diseases Specialist
  • 2004–2009Vakıf Gureba Training and Research Hospital / Skin and Venereal Diseases Specialist
Affiliations

Professional Memberships

  • Skin and Venereal Diseases Association
  • Pediatric Dermatology Association
  • EADV
  • Turkish Dermatology Association
  • Psoriasis Association
Research

Selected Publications

  • Prognostic Evaluation of Neutrophil/Lymphocyte Ratio in Patients with Mycosis Fungoides. Ann Clin Lab Sci Cengiz FP, Emiroglu N, Ozkaya DB, Bahali AG, Su O, Onsun N.
  • Etiology of Onychomycosis in Patients, Turkey. J Am Podiatr Med Assoc Cengiz FP, Cevirgen Cemil B, Emiroglu N, Bahali A, Biyik Ozkaya D, Su O, Onsun N.
  • Dermoscopic Features of Small, Medium, and Large-Sized Congenital Melanocytic Nevi Ann Dermatol Cengiz FP, Emiroglu N, Ozkaya DB, Su O, Onsun N.
  • The relationship between severity of disease and vitamin D levels in children with atopic dermatitis. Postepy Dermatol Allergol Su O, Bahali AG, Dogan Demir A, Biyik Ozkaya D, Uzuner S, Dizman D, Onsun N.
  • Evolution of Spitz Nevi. Pediatr Dermatol Emiroglu N, Yildiz P, Biyik Ozkaya D, Bahali AG, Su O, Onsun N.
  • Demographic characteristics, aetiology, and assessment of treatment options in leukocytoclastic vasculitis Postepy Dermatol Alergol Cakiter AU, Kucuk OS, Ozkaya DB, Topukcu B, Onsun N.
  • Melanocytic nevus count and dermoscopic features do not differ in psoriatic patients undergoing biological agent versus conventional drug therapy G Ital Dermatol Venereol Pirmit S, Onsun N, Su O, Ozkaya DB.
  • Red Blood Cell Distribution Width and Neutrophil-to-Lymphocyte Ratio in Patients with Cutaneous Vasculitis Ann Clin Lab Sci Emiroglu N, Cengiz FP, Bahali AG, Ozkaya DB, Su O, Onsun N.
  • Dermatoscopic findings of Pigmented Purpuric dermatoses. Anais Brasileiros de Dermatologia (Brazilian Annals of Dermatology) Ozkaya DB, Emiroglu N, Su O, Cengiz FP, Bahali AG, Yildiz P, Demirkesen C, Onsun N.
  • The Relationship of Psoriasis and Melanocytic Nevi Indian Journal of Dermatology Cengiz FP, Emiroglu N, Bahali AG, Ozkaya DB, Su O, Onsun N.
Good to Know

Frequently Asked Questions

What is Dr. Dilek Biyik Özkaya's specialty?
Dr. Dilek Biyik Özkaya is a specialist in Dermatology 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. Dilek Biyik Özkaya practise at?
Dr. Dilek Biyik Özkaya sees patients at Acibadem Altunizade 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. Dilek Biyik Özkaya?
Consultations with Dr. Dilek Biyik Özkaya 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. Dilek Biyik Özkaya?
You can request an appointment with Dr. Dilek Biyik Özkaya 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. Dilek Biyik Özkaya?
Yes. Dr. Dilek Biyik Özkaya 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. Dilek Biyik Özkaya have?
Dr. Dilek Biyik Özkaya has around 22 years of professional experience in Dermatology. A summary of education, experience and professional memberships is available on this page.
Can international patients arrange treatment with Dr. Dilek Biyik Özkaya?
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. Dilek Biyik Özkaya?
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 Prof. Dr. Dilek Biyik Özkaya

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

“I came to Acibadem for urgent care visit and could not be happier with the outcome. Dr. Özkaya treated me as a person, not just a case. I only wish I had come here sooner.”

Luan S. · Montenegro May 2025
★★★★★ Verified Patient

“Choosing Acibadem for my eczema treatment was the best decision I made. Prof. Dr. Özkaya explained the risks honestly and earned my full trust. Everything was clearly explained in my own language.”

Aslan K. · Ukraine May 2026
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