Dermatology Prof. Dr. Dilek Biyik Özkaya
✓ Medically verified profileProf. Dr. Dilek Biyik Özkaya
✓ Medically verified 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.
Areas of Expertise
Conditions treated and procedures performed by this specialist.
Education
- 2009Bezmi Alem Valide Sultan Vakıf Gureba Training and Research Hospital Skin and Venereal Diseases
- 2002Istanbul University Istanbul Faculty of Medicine
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
Professional Memberships
- Skin and Venereal Diseases Association
- Pediatric Dermatology Association
- EADV
- Turkish Dermatology Association
- Psoriasis Association
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.
Frequently Asked Questions
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A dedicated team, from first message to follow-up
Our international patient office coordinates your appointment, travel and treatment at JCI-accredited Acıbadem hospitals — and stays with you in your own language, every step of the way.
Schedule your appointment with Prof. Dr. Dilek Biyik Özkaya
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Hospitals
Medical Units
Treatments Performed
What patients say about Prof. Dr. Dilek Biyik Özkaya
★★★★★From 2,400+ verified patient reviews“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.”
“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.”

