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Professor Ozlem Er

Oncologist

2 reviews

Istanbul, Turkey

Clinical experience: over 32 years

Languages: English

RUHET GENÇ

Verified review

oncology

She is an exemplary doctor.
She is the scientific strength of the hospital, always welcoming and kind.
She has perfectly mastered the principles of the Hippocratic Oath.

15/07/2026

MEHMET MANAS

Verified review

endocrine oncology

I spent 15 days in this hospital and was discharged after receiving the necessary treatment. I want to thank all the hospital staff — from the chief physician to the cleaning staff — for the high level of diagnostics and treatment, attentive attitude towards patients, cleanliness, and friendliness.

I especially want to thank Prof. Dr. BANU ATALAR, on whose recommendation I contacted Prof. Dr. ÖZLEM ER, her assistant and nurse HACER HANIM, as well as Ms. BAŞAK and other nurses and staff of the department.

I separately thank my esteemed doctor Prof. Dr. İLHAN ELMACI, who performed my surgery in the neurosurgery department, Uz. Dok. RAMAZAN SARI, nurses RAMAZAN SEYİTOĞLU and GÖKHAN GÜNEY, and secretary EMİNE COŞKUN.

I express my immense gratitude to Prof. Dr. NESLİHAN KURTULMUŞ from the endocrinology department, who supported my morale and conducted my treatment. Thanks to all these specialists, I was able to regain my health. I sincerely thank each of them.

24/12/2021

Oncologist

Clinical experience: over 32 years

Professor Ozlem Er is a medical oncologist with over 32 years of experience. She treats adult patients in the Medical Oncology Department at Acibadem Maslak Hospital in Istanbul and has been working with Acıbadem Healthcare Services since 2018.

Conditions treated

Professor Ozlem Er specializes in the treatment of:

solid tumors, including head and neck cancer,
lung and thoracic organ cancers,
kidney and adrenal gland cancers,
brain tumors,
anal canal cancer,
melanoma and other malignant skin neoplasms.

She evaluates the possibility of chemotherapy, targeted therapy, immunotherapy, and other systemic treatment methods, taking into account the diagnosis, disease stage, examination results, and the patient’s general condition.

Professor Ozlem Er graduated from Hacettepe University Faculty of Medicine, completed her specialization in internal medicine at Ankara Numune Training and Research Hospital, and then specialized in medical oncology at Erciyes University. In 2003, she was awarded the title of Associate Professor, and in 2010, Professor at Acıbadem University Faculty of Medicine. Her international experience includes clinical research on breast cancer at MD Anderson Cancer Center and scientific work at Thomas Jefferson University in the USA.

The professor is involved not only in patient treatment but also in scientific activities. Her publications are dedicated to drug therapy for metastatic gastric cancer, small cell lung cancer, prevention and treatment of thrombosis in oncology patients, and the characteristics of metastatic breast cancer.

Why patients choose Professor Ozlem Er

Over 32 years of experience in treating oncological diseases.
Specialization in complex and metastatic solid tumors.
Individual selection of chemotherapy, targeted, and immunotherapy.
Professional training and research experience at leading oncology centers in the USA.
Multidisciplinary treatment planning at Acibadem Maslak.
Opportunity to receive a video consultation before traveling to Turkey.
Experience working with international patients and consultations in English.

During the consultation, the doctor reviews the patient’s medical history, biopsy results, pathology reports, laboratory tests, and imaging studies, then explains the possible treatment options. If necessary, she orders additional examinations and participates in developing a comprehensive plan with surgeons, radiation oncologists, and other specialists.

Professor Ozlem Er consults in Turkish and English. International patients can submit medical documents in advance for review, receive a preliminary video consultation, and discuss a possible treatment plan before traveling to Istanbul. The international department helps organize the translation of medical documents, appointment scheduling, examinations, and further patient support.

If you need a consultation with Professor Ozlem Er, please submit an application on the Experts Medical website. Our medical coordinators will help you connect with the doctor, arrange a consultation, and prepare the necessary medical documents for their preliminary review by the specialist.

Achievements and Awards

Professor of Medicine, Associate Professor, Oncology Specialist

Over 32 years of experience in clinical oncology

Author of dozens of scientific publications in oncology

Internships at MD Anderson and T. Jefferson Cancer Centers

Member of ASCO, ESMO, and the Turkish Oncology Group

About Dr. Ozlem Er

Specialization

Head and neck tumors (oral cavity cancer, tongue and tongue base cancer, nasal cavity tumors)
Brain tumors
Lung cancer and other thoracic organ cancers
Kidney cancer and adrenal gland cancer
Anal canal cancer
Melanoma and other skin tumors

Education

1994 — Graduated from Hacettepe University Faculty of Medicine
1994–1999 — Specialization in Internal Medicine, Ankara Numune Training and Research Hospital
1999–2002 — Specialization in Medical Oncology, Erciyes University Faculty of Medicine
2003 — Awarded the title of Associate Professor (Erciyes University)
2010 — Professor title, Acıbadem University Faculty of Medicine

Clinical Experience

2002–2009 — Lecturer, Department of Medical Oncology, Erciyes University
2005–2007 — Head of Department of Medical Oncology, Erciyes University
2003–2004 — Clinical Observer, Breast Cancer Research, M.D. Anderson Cancer Center (USA)
2006–2008 — Research Fellow, Breast Cancer Research, Thomas Jefferson University (USA)
Since 2018 — Oncologist at Acıbadem Maslak Hospital, Istanbul

Scientific Activity

Professor Er is the author of numerous scientific publications in the field of oncology. Her work focuses, in particular, on:

chemotherapy for metastatic gastric cancer;
the use of low molecular weight heparin in small cell lung cancer;
management of cancer-associated venous thrombosis;
the course of breast cancer with liver-limited metastases.

Membership in Associations

American Society of Clinical Oncology (ASCO)
European Society for Medical Oncology (ESMO)
Turkish Oncology Group (TOG)
Medical Oncology Association (MOA)
Turkish Association for Cancer Research and Control (TKARK)

Clinic where the doctor consults

Acibadem Maslak Hospital

4.4

23 reviews

Turkey, Istanbul

Acibadem Maslak Hospital is a modern multidisciplinary hospital in Istanbul, part of the Acıbadem Healthcare Group. Professor Özlem Er, a specialist with over 32 years of experience in treating solid tumors, consults at the Medical Oncology Center. She works with patients diagnosed with head and neck tumors, lung cancer, thoracic organ cancers, kidney cancer, adrenal gland cancer, brain tumors, skin cancer, and other types of cancer.

The hospital offers comprehensive diagnostics, chemotherapy, targeted therapy, and immunotherapy. Each case is reviewed by a team of oncologists, surgeons, radiation therapists, radiologists, and other specialists. For international patients, preliminary review of medical documents, video consultations, interpreter services, and assistance with organizing examinations and treatment in Turkey are available.

Published 23.09.2026