JCI-accredited · 45+ hospitals & clinics · 90+ countries served · 24/7 multilingual support
Dr. Sedenay Oskeroğlu Kaplan Radiation Oncology

Dr. Sedenay Oskeroğlu Kaplan

✓ Medically verified profile
Radiation Oncology

Dr. Sedenay Oskeroğlu Kaplan

✓ Medically verified profile
15+ years experienceLanguages: Turkish, EnglishOnline consultationAcibadem Atasehir Hospital · İstanbul
★★★★★ From 2,400+ verified Acibadem patient reviews
Dr. Sedenay Oskeroğlu Kaplan
Profile

About Dr. Sedenay Oskeroğlu Kaplan

Quick answer

Dr. Sedenay Oskeroğlu Kaplan is a Radiation Oncology specialist at Acibadem Atasehir Hospital in İstanbul with 15+ years of experience.

She treats high-risk prostate cancer, rectal cancer, locally advanced rectal cancer, and malignant pleural mesothelioma, and provides external beam radiotherapy, stereotactic body radiotherapy boost, intensity-modulated radiotherapy, volumetric modulated arc therapy, hypofractionated preoperative chemoradiotherapy, and radiation therapy treatment planning. She consults in Turkish and English and offers online video consultation.

M.D. Sedenay Oskeroğlu Kaplan is a board-trained radiation oncologist with clinical training completed at Okmeydanı Training and Research Hospital in 2016. She brings focused expertise in radiation therapy and cancer care, combining evidence-based treatment planning with patient-centered communication. Since 2022, M.D.

Kaplan has been part of the Acıbadem Health Group, where she provides comprehensive radiation oncology services, collaborates with multidisciplinary teams, and participates in ongoing efforts to improve patient outcomes and treatment experiences. Known for a calm, compassionate approach, M.D. Kaplan is committed to tailoring care to each patient’s needs and staying current with advances in radiation oncology to deliver safe, effective therapies.

Clinical Focus

Areas of Expertise

Conditions treated and procedures performed by this specialist.

High-risk prostate cancerRectal cancerLocally advanced rectal cancerMalignant pleural mesotheliomaExternal beam radiotherapyStereotactic body radiotherapy boostIntensity-modulated radiotherapyVolumetric modulated arc therapyHypofractionated preoperative chemoradiotherapyRadiation therapy treatment planning
Background

Education

  • 2016Okmeydanı Training and Research Hospital Radiation Oncology
  • 2011Karadeniz Technical University Faculty of Medicine
Career

Professional Experience

  • 2022Acibadem Health Group
  • 2021–2022Okan University Hospital Radiation Oncology Clinic
  • 2017–2021Şanlıurfa Mehmet Akif inan EAH Radiation Oncology Clinic / Specialist Physician
  • 2014–2016Okmeydanı EAH Radiation Oncology Clinic / Assistant Physician
  • 2012–2014Bezmialem Vakif University / Department of Radiation Oncology / Assistant Physician
  • 2011–2012Cayeli Ishakoglu State Hospital / General Practitioner
Research

Selected Publications

  • Stereotactic body radiotherapy as a boost after external beam radiotherapy for high-risk prostate cancer patients. Indian J Cancer 2020 Nov 2. doi: 10.4103/iic.lJC 377 19.? Turna M, Akboru H, Ermis E, Oskeroglu S, Dincer S, Altin S.
  • The effect of individual nutritional support and nurse follow-up on vveight loss during radiotherapy in cancer patients ACU Health Bil Derg. doi: 10.31067/0.2020.278 Yücel S, Oskeroğlu Kaplan S, Güral Z, Kayış A, Işık F, Ağaoğlu F.
  • Dosimetric Comparison of Intensity-Modulated Radiotherapy and Volumetric ArcTherapy for Rectal Cancer Türk J Oncol 2019;34(2) doi: 10.5505/tjo.2018.1870 Oskeroglu Kaplan S, Akbörü FI, Sarall Y, Altin S, Unsal M.
  • Currenttreatmentstrategies in malignant pleural mesothelioma with a treatment algorithm Adv Respir Med. 2019;87(5):289-297.doi: 10.5603/ARM.2019.0051. Sayan M, Eren MF, Gupta A, Ohri N, Kötek A, Babalioglu I, Oskeroglu Kaplan S, Duran O, Derinalp Or O, Cukurcayir F, Kurtul N, Ceylaner Bicakci B,
  • Hypofractionated Preoperative Chemoradiotherapy In Locally Advanced Rectal Cancer: Preliminary Results. TurkJ Oncol 2019;34(1) doi: 10.5505/tjo.2018.1869 Oskeroglu Kaplan S, Akbörü FI, DinçerS, Baskaya YucelS, Meral I, Sarali Y, Cengiz ErhanS, AltinS
  • A study on basic demographic and disease characteristics of cancer-diagnosed Syrian refugees treated in the border city of Turkey, Sanliurfa; a hospital-based retrospective case series study. FJBUON 2017; 22(6): 1591-1594 ISSN: 1107-0625, Online ISSN: 2241-6293 Bakkal Temi Y, Murat Sedef A, Gokcay S, Coskun H, Oskeroglu Kaplan S, Ozkul O, Mertsoylu H, Kose
Good to Know

Frequently Asked Questions

What is Dr. Sedenay Oskeroğlu Kaplan's specialty?
Dr. Sedenay Oskeroğlu Kaplan is a specialist in Radiation Oncology 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. Sedenay Oskeroğlu Kaplan practise at?
Dr. Sedenay Oskeroğlu Kaplan sees patients at Acibadem Atasehir 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. Sedenay Oskeroğlu Kaplan?
Consultations with Dr. Sedenay Oskeroğlu Kaplan 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. Sedenay Oskeroğlu Kaplan?
You can request an appointment with Dr. Sedenay Oskeroğlu Kaplan 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. Sedenay Oskeroğlu Kaplan?
Yes. Dr. Sedenay Oskeroğlu Kaplan 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. Sedenay Oskeroğlu Kaplan have?
Dr. Sedenay Oskeroğlu Kaplan has around 15 years of professional experience in Radiation Oncology. A summary of education, experience and professional memberships is available on this page.
Can international patients arrange treatment with Dr. Sedenay Oskeroğlu Kaplan?
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. Sedenay Oskeroğlu Kaplan?
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 at JCI-accredited Acıbadem hospitals — and stays with you in your own language, every step of the way.

Book an Appointment

Schedule your appointment with Dr. Sedenay Oskeroğlu Kaplan

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

  1. 1
    Choose your date & timePick a preferred day and time slot for your visit.
  2. 2
    Share your detailsTell us how to reach you and anything we should know.
  3. 3
    We confirm with youOur team confirms the appointment by phone or email.
Why patients choose Acıbadem
35+Years of expertise
90+Countries served
20+Languages spoken
24/7Patient support
Prefer to talk now?
Appointment Request

Request your appointment

This request goes directly to this doctor’s schedule.

Dr. Sedenay Oskeroğlu Kaplan Appointment with Sedenay Oskeroğlu Kaplan Radiation Oncology

Your information stays strictly confidential and is used only to arrange your care.

Where

Hospitals

Departments

Medical Units

Patient Voices

What patients say about Dr. Sedenay Oskeroğlu Kaplan

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

“My experience with radiotherapy planning here restored my faith in medical care. Dr. Kaplan listened carefully and built a plan I understood. The nursing staff were attentive and kind throughout.”

Dmitri D. · Russia February 2025
★★★★★ Verified Patient

“Choosing Acibadem for my arrhythmia treatment was the best decision I made. Assoc. Prof. Dr. Kaplangöray went above and beyond what I expected. The follow-up care was just as good as the treatment itself.”

Arben H. · North Macedonia March 2025
★★★★☆ Verified Patient

“I flew in specifically for menopause care and was treated with the utmost professionalism. Dr. Kaplan went above and beyond what I expected. The follow-up care was just as good as the treatment itself.”

Adaeze A. · Rwanda July 2025
★★★★★ Verified Patient

“I flew in specifically for trauma care and was treated with the utmost professionalism. Dr. Kaplan was thorough, professional and genuinely caring. I have already recommended Acibadem to my family.”

Youssef H. · Sudan February 2025
We’re With You at Every Step

How can we help you today?

We value your privacy We use essential cookies to run this site and, with your consent, analytics cookies to understand how it is used and improve it. You can accept, reject, or choose what to allow. See our Cookie Policy.