Page 4 - Best oncologists in Istanbul: TOP 99 doctors

1,100+ colorectal cancer procedures performed – Professor Ondzhel trained at the prestigious Cleveland Clinic and leads the Surgery Department at Medipol Mega University Hospital.

• Specializes in laparoscopic resection of rectal adenocarcinoma
• Board-certified by the European Commission on Coloproctology
• Fellow of the American Society of Colorectal Surgeons
• Recipient of 'Most Successful Scientist of the Year' award
• Published research on advanced multivisceral cancer resections

Associate Professor Tahsin Ozatli specializes in breast, lung, and gastrointestinal cancers at Istinye Liv University Hospital, with over a decade of oncology experience.

• Performed 1,100+ oncology procedures
• Promoted to Associate Professor in 2016 for clinical excellence
• Trained at Selcuk University Faculty of Medicine
• Worked at Ankara Oncology Clinic and Erzurum Regional Training Hospital

Dr. Mustafa Aydın is an Internal Medicine specialist. He graduated from Gazi University Faculty of Medicine in 2009. He provides evidence-based care for adults, including diagnosis and treatment. He communicates in English.

His clinical focus includes chronic disease management, such as diabetes, hypertension, high cholesterol, and thyroid disorders. He treats gastrointestinal problems, including reflux, gastritis, ulcers, and liver diseases, and respiratory diseases like asthma and COPD. He manages infectious diseases. He provides preventive care with routine screenings, risk assessments, and personalized health plans.

Dr. Ercan Ozden is a specialist in internal medicine and medical oncology. He earned his medical degree and completed his residency at Istanbul University, Cerrahpaşa Faculty of Medicine. He later received a subspecialty in medical oncology at Kocaeli University Faculty of Medicine from 2016 to 2020.

Dr. Ozden has worked in medical oncology at Şırnak State Hospital. He has also served as an internal medicine specialist at Bağcılar Private Safa Hospital and Küçükçekmece Batı Bahat Hospital. He has extensive clinical experience in both internal medicine and oncology.

Dr. Ozlem Yogurtcu is a general surgeon with extensive experience. She graduated from Dokuz Eylul University Faculty of Medicine. She completed her general surgery residency at Haseki Training and Research Hospital, 1st Surgical Clinic. She is fluent in English.

Her practice includes gastrointestinal surgery (gallbladder disease, hernias, appendicitis, other gastrointestinal conditions). It also includes endocrine surgery (thyroid, parathyroid, adrenal) and breast surgery (benign and malignant conditions). She treats emergency and trauma cases. She performs minimally invasive laparoscopic procedures.

She is known for precise surgery and a patient-centered approach.

Dr. Muhammed Mustafa Atci is an Associate Professor of Medical Oncology at İstinye University, Liv Hospital Topkapı (2025–present). He previously served as Associate Professor and Education Coordinator at Prof. Dr. Cemil Taşcıoğlu City Hospital (2023–2025). He was also a Medical Oncologist there (2018–2021).

He has been a member of ASCO and the Turkish Society of Medical Oncology since 2018. He is the author or co-author of 19 peer-reviewed international papers on colon, breast, gastric, pancreatic, lung, thyroid, sarcoma, and colorectal cancers.

Notable works include a multicentre study on stage IIB colon cancer survival (Journal of Chemotherapy). He also studied the De Ritis ratio for lung metastasis in testicular cancer (Current Urology). His prognostic studies used PET/CT, MSI, lymph node ratio, and metabolic tumor volume.

Dr. Irfan Cicin is a Professor of Medical Oncology at the Trakya University Faculty of Medicine (2015–present). He has over 20 years of medical oncology experience and has held academic roles since 2010.

Education: MD, Istanbul University – Cerrahpaşa (1991–1997). Residency in Internal Medicine, Trakya University (1997–2002). Fellowship in Medical Oncology, Trakya University (2002–2004).

Practice: Medical Oncologist, Trakya University (2005–2008). Medical Oncologist, Elazığ Training and Research Hospital (2008–2010). Associate Professor of Medical Oncology, Trakya University (2010–2015). He previously served as a physician in the Turkish Air Force at Etimesgut Military Hospital (2004–2005).

2017: Oticon Medical Scientific Center Copenhagen Denmark.
2016: ICLO Teaching Center New Endoscopic Approaches to Lateral Skull Base, Inner Ear and Cerebello-Pontine Angle, Verona Italy
2016: World Hearing Center, Institute of Physiology and Pathology of Hearing, Warsaw,Poland
2015: Cochlear Science and Research Center Berlin Germany.
2014: Cochlear implant Center Medel Company Innsburck, Austria.
2014: Hannover Medical School. Clinic for Laryngology, Rhinology and Otology, Hannover, Germany
2014: Academy of Hearing Aid Acoustics (Akademie für Hörgerate-Akustik), Lübeck, Germany.
2013: International European Sialendoscopy Training Center, Geneva, Switzerland.
2012: University clinic of ORL, Head and Neck Surgery, klinikum der Universitat, Munchen, Germany.
2012: University clinic of ORL, Head and Neck Surgery, Bern, Switzerland.
2011: University clinic of ORL, Head and Neck Surgery, klinikum der Universitat, Munchen, Germany.
2007: The Ohio State University, Medical Faculty, Department of Otolaryngology, Division of Otology and Neurotology. Columbus, Ohio, USA.
2006: University of Würzburg, Department of Otolaryngology, Division of Otology and Neurotology. Würzburg, Germany.
1999-2003 İnönü Üniversitesi Tıp Fakültesi Kulak Burun Boğaz Anabilim Dalı
1993-1999 İstanbul Üniversitesi Cerrahpaşa Tıp Fakültesi

Turkish Otorhinolaryngology and Head and Neck Surgery Association

Turkish Otorhinolaryngology and Head and Neck Surgery Foundation

Turkish Rhinology Society

Tigris-Euphrates Basin Otorhinolaryngology and Head and Neck Surgery Association

Gaziantep Otorhinolaryngology Association

Turkish Otorhinolaryngology and Head and Neck Surgery Qualification Board

Turkish Otology Association

Malatya Otorhinolaryngology Association

American Academy of Otolaryngology Head and Neck Surgery

Mediterranean Society of Otology and Audiology

International Vertigo Association

Prof. Kilic is the first Turkish doctor trained in radiosurgery at Sweden's Karolinska Institute – a pioneer in non-invasive brain tumor treatment.

• Highly specialized in Gamma Knife Radiosurgery for precise, non-surgical tumor targeting
• Holds a neuro-oncology research fellowship from Harvard Medical School and Dana-Farber Cancer Institute
• Member of the International Meningioma Society and World Federation of Neurosurgical Societies

Dr. Sertkaya graduated from Konya Meram Science High School in 2001 and entered Gazi University Medical Faculty the same year, graduating in 2008. He completed his urology specialization at Haydarpaşa Numune Training and Research Hospital in 2014, becoming a urology specialist.

Since becoming a specialist, he has focused on the sub-branch of Andrology, attending various training sessions and conferences and performing surgeries with some of the world's leading Andrology professors. In 2017, he passed the written and oral proficiency exams conducted by the European Association of Urology, earning the title of "FEBU."

In 2020, Dr. Sertkaya achieved the rank of Associate Professor of Urology. His journey in Urology and Andrology, which began in 2008, continues at the Andro Expertise Male Health and Aesthetics Center, which he founded in 2022. He sees patients in his own clinic and performs surgeries at affiliated hospitals.

Prof. Dr. Sezer Sağlam is a medical oncologist at Gayrettepe Florence Nightingale Hospital. He specializes in gastrointestinal and breast cancers. He has contributed to cancer care through research, especially with his study on the best timing for surgery after neoadjuvant therapy in rectal cancer. This work has influenced global treatment protocols.

Dr. Sağlam has led clinical trials in targeted therapies and precision medicine. His research on liver-transplanted patients with hepatocellular carcinoma was nominated for the 2024 International Best Researcher Award. He is a member of ASCO, ESMO, and ENET. Dr. Sağlam provides personalized and evidence-based oncology care.

Dr. Esra Ozbasli is a board-certified OB-GYN and Genital Aesthetics Surgeon. She has over 21 years of experience and is one of Istanbul’s leading specialists. Dr. Ozbasli is known for her skills in minimally invasive gynecologic and genital aesthetic procedures. She performs robotic surgery and cosmetic gynecology with advanced techniques.

She holds certifications in Genital Aesthetics, Cosmetic Gynecology, and da Vinci Robotic Surgery. Dr. Ozbasli is also ECFMG-accredited. She has published many articles in international journals and has trained other specialists. Her work shows a strong commitment to research and education. Dr. Ozbasli speaks English fluently and provides patient-centered care. She uses the latest technology to achieve the best results for her patients.

Dr. Derya Zengin Metli is a physician specialized in physical therapy and rehabilitation. She graduated from Akdeniz University Faculty of Medicine. Her practice includes physical therapy and physiotherapy services. She also consults in English.

Her clinical scope includes musculoskeletal rehabilitation for back, neck, and joint pain, and herniated discs. She provides neurological rehabilitation for stroke and multiple sclerosis. She also offers post-surgical rehabilitation after orthopedic and neurosurgical procedures, sports injury prevention and treatment, and chronic pain management for fibromyalgia and arthritis.

Assoc. Prof. Gorkem Turkkan started his medical education at Gülhane Military Medical Academy in 2003 and completed it at Zonguldak Karaelmas (Bülent Ecevit) University Faculty of Medicine in 2009. He completed his specialization at Trakya University Faculty of Medicine, Department of Radiation Oncology and became a radiation oncology specialist in 2016.

After completing his compulsory service, he served as a Lecturer and Head of Department at Muğla Sıtkı Koçman University Faculty of Medicine, Department of Radiation Oncology, from May 2019 to February 2021. Meanwhile, between March and June 2020, he worked as a clinical researcher at Maastricht University Faculty of Medicine Department of Radiation Oncology – MAASTRO Clinic (Netherlands) on stereotactic radiotherapy, thoracic radiotherapy-related lung toxicity and proton therapy. While he was working at İstinye University Faculty of Medicine, Department of Radiation Oncology and Liv Hospital Ulus Radiation Oncology Clinic between March 2021 and April 2023, he received the title of Associate Professor in February 2023. She has been serving her patients at Hisar Hospital Intercontinental since May 2023.

He has performed both traditional radiotherapy and advanced radiotherapy throughout his career. He is one of the experienced physicians in our country in stereotactic radiotherapy and MRI-guided radiotherapy treatments, which have become increasingly popular and used especially recently. So far, he has successfully completed more than 2500 radiotherapy sessions with the MR-Linac device.

He has been a member of the Turkish Society of Radiation Oncology (TROD) since 2013 and the European Society of Radiotherapy and Oncology (ESTRO) since 2015. He has 27 articles published in domestic and international journals, 31 oral-poster presentations presented at national and international congresses, and 5 book chapters published by national and international publishing houses. He taught Term I and Term V undergraduate courses at Muğla Sıtkı Koçman University Faculty of Medicine, postgraduate courses within the scope of Ear Nose and Throat Department Specialization training, and Radiotherapy associate degree courses at İstinye University Vocational School of Health Services. She is currently working on 2 ongoing TÜBİTAK Projects. He is married and has a son.

MEDICAL INTERESTS

MR-Linac

Linac

Stereotactic (Pinpoint) Radiotherapy

Prostate Cancers

Breast Cancers

Lung Cancers

Rectum Cancers

Brain and Spinal Cord Cancers

Head and Neck Cancers

Volumetric Arc Therapy (VMAT)

Intensity Modulated Radiotherapy (IMRT)

• 2021 - 2021, Istanbul/Turkey
  SEYRANTEPE HAMİDİYE ETFAL HOSPITAL
  General Surgery Specialist
• 2021 - Currently, Istanbul/Turkey
  MEMORIAL HİZMET HOSPITAL
  General Surgery Specialist
• 2021 - Currently, Istanbul/Turkey
  MEMORIAL ATAŞEHİR HOSPITAL
  General Surgery Specialist
• 2014 - 2014, Istanbul/Turkey
  BEZMIALEM UNIVERSITY
  General Surgery Specialist
• 2013 - 2013, /ABD
  ST-MARY HOSPİTAL
  General Surgery Specialist
• 2009 - 2009, Istanbul/Turkey
  BÜYÜKÇEKMECE PUBLIC HOSPITAL
  General Surgery Specialist
• 2009 - 2021, Istanbul/Turkey
  SISLI HAMİDİYE ETFAL HOSPITAL
  General Surgery Specialist

• 2021 - Currently, Istanbul/Turkey
  MEMORIAL ŞİŞLİ HOSPITAL
  Dermatology Specialist
• 2021 - Currently, Istanbul/Turkey
  MEMORIAL ATAŞEHİR HOSPITAL
  Dermatology Specialist
• 2013 - 2021, Istanbul/Turkey
  MEDENİYET UNIVERSITY
  Lecturer
• 2013 - 2016, Istanbul/Turkey
  MEDENİYET UNIVERSITY
  Head of Department
• 2013 - 2014, Istanbul/Turkey
  MEDENİYET UNIVERSITY
  Director of the Institute of Health Sciences
• 2012 - 2012, /ABD
  PITTSBURGH UNIVERSITY
  Visiting Scholar
• 2010 - 2013, Erzurum/Turkey
  ATATURK UNIVERSITY MEDICAL FACULTY
  Professor, Lecturer, Dermatology Specialist
• 2001 - 2007, Van/Turkey
  YUZUNCU YIL UNIVERSITY
  Assistant Professor, Dermatology Specialist

2021 - Currently, İstanbul

ASSOCIATE PROFESSOR

ASSOCIATE PROFESSOR

2009 - 2012, İstanbul / Turkey

T.R. ISTANBUL SCIENCE UNIVERSITY EUROPEAN FLORENCE NIGHTINGALE HOSPITAL

Minor Specialization Training

2003 - 2008, İstanbul / Turkey

ŞİŞLİ HAMİDİYE ETFAL EDUCATION AND RESEARCH HOSPITAL

Assistant Physician

1990 - 1996, Ankara / Turkey

GAZİ UNIVERSITY FACULTY OF MEDICINE

Medical Doctor Training

2014 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL SISLI HOSPITAL

Radiation Oncology Specialist

2011 - 2014, Istanbul/Istanbul/Türkiye

BEZMIALEM FOUNDATION UNIVERSITY FACULTY OF MEDICINE

Radiation Oncology Specialist

2009 - 2011, Erzurum/Erzurum/Türkiye

ERZURUM REGIONAL TRAINING AND RESEARCH HOSPITAL

Radiation Oncology Specialist

2003 - 2008, Istanbul/Istanbul/Türkiye

MARMARA UNIVERSITY FACULTY OF MEDICINE RADIATION ONCOLOGY DEPARTMENT

Research Assistant

2023 - Present, Istanbul/Türkiye

ÜSKÜDAR UNIVERSITY FACULTY OF MEDICINE INTERNAL MEDICINE DEPARTMENT

Faculty Member

2021 - Present, Istanbul/Türkiye

MEMORIAL SISLI HOSPITAL

Medical Oncology Specialist

2018 - 2021, Istanbul/Türkiye

VM MEDICALPARK PENDIK HOSPITAL

Medical Oncology Specialist

2015 - 2018, Istanbul/Türkiye

MARMARA UNIVERSITY PENDIK TRAINING AND RESEARCH HOSPITAL

Faculty Member

2012 - 2014, Hatay/Türkiye

HATAY ANTAKYA STATE HOSPITAL

Medical Oncology Specialist