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Oncology
Doctors
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  • FR
telegram
Treatments
Oncology
Doctors
  • RUS
  • UKR
  • ENG
  • KZ
  • ESP
  • FR
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Prof. Umut Kefeli

Prof. Umut Kefeli

Medical oncologist
4.6
5 reviews
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Kocaeli, Turkey
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Clinical experience: over 20 years
Languages: EnglishTürkçe
Reviews about Prof. Umut Kefeli
Rasim Demir
Verified review
Rasim Demir
cancer (chemotherapy)
We met because of my father's cancer. Our doctor works in the new building of the oncology department in Umuttepe, separate from the main hospital. In these difficult days for us, you became our hope and consolation, dear teacher.
We started chemotherapy. Your confident manner, which shows that you know your work, helped us feel better. You do everything in your power, the rest is in God's hands. We hope to recover.

09/01/2021
Karaca Ahmet
Verified review
Karaca Ahmet
cancer
All these years I have been going to Umuttepe, but I have never seen an associate professor who consistently sees outpatients. At first I thought the opposite, but it turned out that the doctor is trying to organize his own working order. Now the old system, where 10 people were in one room and our personal matters were discussed, has changed. For the first time in 5 years I was physically examined. In terms of knowledge and attention to patients, he has never had any issues. I ask other patients and their relatives to help the doctor maintain the new order of appointments and consultations.

27/02/2015
Can Yildiz
Verified review
Can Yildiz
cancer
Hello, my dear Dr. Umut. You are not like other doctors, I used to say "he won't go to a private clinic after becoming an associate professor", but this time you transferred to a state hospital in another city. We were referred to oncology from Göztepe, teacher. I will find you, I won't go to anyone else. May God grant you patience and ease.

12/10/2014
Furkan Aydin
Verified review
Furkan Aydin
cancer
A successful and patient doctor. We have known each other for about 2 years, and I think that, given the capabilities of a hospital like Göztepe, he conducts himself very honorably. It is a pity that he did not work in one of the Istanbul hospitals. I wish him continued success.

18/08/2014
Mehmet Murat Kaya
Verified review
Mehmet Murat Kaya
cancer
Mr. Umut, I came for a follow-up but was told that you had left Göztepe. I was in shock. I used to wonder how a doctor like you could work in those conditions; I wrote to the hospital several times, but the conditions never improved. Unfortunately, what I feared has happened — in the end, you left. I would like to visit you at your new workplace. I wish you success.

14/07/2014
Medical oncologist
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Clinical experience: over 20 years

Professor Umut Kefeli is a medical oncologist at the Faculty of Medicine of Kocaeli University, a specialist in internal medicine and clinical oncology. He has over 20 years of professional experience.

He teaches and treats patients in the Department of Internal Medicine (Oncology Division) at Kocaeli University. He actively participates in international research projects and is a member of ESMO and ASCO. He is the author of more than 130 scientific publications (h-index 15 on WoS/Scopus, 18 on Google Scholar; over 900 citations).

Areas of expertise: drug therapy for colorectal, breast, lung, gastric and prostate cancer, neuroendocrine tumors, immunotherapy, targeted therapy, telemedicine in oncology, prognostic biomarkers (neutrophil-to-lymphocyte ratio, albumin/alkaline phosphatase).

Co-author of works on the use of Lutetium-177 PSMA-617 in prostate cancer, the efficacy of capecitabine and temozolomide in neuroendocrine tumors, and palliative colorectal stenting. He has led 28 research projects.

Achievements and awards

Professor at the Faculty of Medicine, Kocaeli University
More than 130 scientific publications in oncology
H-index 18 (Google Scholar), over 900 citations
Principal investigator of 28 research projects
Member of ESMO, ASCO, and the Turkish Society of Medical Oncology
Co-author of international studies on Lutetium-177 PSMA-617
Expert in targeted therapy and immunotherapy
Experience in treating rare neuroendocrine tumors

About Dr. Umut Kefeli

Specialization
  • Drug therapy for cancer (medical oncology)
  • Colorectal cancer
  • Breast cancer
  • Lung cancer
  • Stomach and esophageal cancer
  • Prostate cancer, including Lutetium-177 PSMA-617 therapy
  • Neuroendocrine tumors
  • Targeted therapy and immunotherapy
  • Prognostic biomarkers in oncology
Education
  • Higher medical education, Faculty of Medicine (Turkey), MD degree
  • Residency in internal medicine
  • Subspecialty in medical oncology
  • Awarded the titles of Associate Professor and Professor at the Faculty of Medicine of Kocaeli University
Clinical experience
  • Professor in the Department of Internal Medicine (Medical Oncology Division), Faculty of Medicine, Kocaeli University
  • Drug therapy for patients with cancer
  • Participation in multidisciplinary oncology tumor boards
  • Teaching of students and residents
Scientific activity
  • Author of more than 130 scientific publications. WoS and Scopus h-index — 15, Google Scholar h-index — 18, over 900 total citations. Lead investigator of 28 research projects.
  • Co-author of international works on Lutetium-177 PSMA-617 therapy for metastatic castration-resistant prostate cancer
  • Studies on the efficacy of capecitabine and temozolomide combination in neuroendocrine tumors
  • Works on the prognostic role of the neutrophil-to-lymphocyte ratio and albumin/alkaline phosphatase in oncology
  • Studies on the perception and adoption of telemedicine by medical oncologists in Turkey (COVID-19)
  • Publications on colorectal stenting for palliation and preparation for surgery
Membership in associations
  • European Society for Medical Oncology (ESMO)
  • American Society of Clinical Oncology (ASCO)
  • Turkish Society of Medical Oncology (TTOD)
  • Turkish Oncology Group (TOG)
Kocaeli University Hospital
Clinic where the doctor sees patients
Kocaeli University Hospital
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Turkey, Kocaeli

Kocaeli University Hospital is an academic medical complex affiliated with the Faculty of Medicine of Kocaeli University, located in İzmit. It is one of the largest state university hospitals in northwestern Turkey.

The hospital provides a full range of diagnostic and therapeutic care in oncology, surgery, cardiology, neurology, and transplantation. The Medical Oncology Department is equipped with state-of-the-art systems for drug therapy, immunotherapy and targeted therapy, and conducts clinical research.

The clinic combines a university research base with clinical practice, providing patients access to the latest treatment protocols and innovative drugs.

Published 02.05.2026
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