49 Best Rectal Cancer Doctors in Istanbul

Dr. Bulent Karagoz is a medical oncologist at Anadolu Medical Center in Istanbul. He specializes in immunotherapy and targeted therapies for sarcoma, lymphoma, and lung cancer. Dr. Karagoz provides treatment at a facility affiliated with the prestigious Johns Hopkins Hospital.

• Authored over 40 research publications focusing on tumor biology and immunology.
• Former Head of Internal Diseases at Istanbul Okan University Faculty of Medicine.
• Held leadership roles in medical oncology at GATA Haydarpasa Training Hospital.
• Member of the Turkish Medical Oncology Association and European Head and Neck Society.

Dr. Eda Tanrikulu specializes in medical oncology and chemotherapy at Anadolu Medical Center, with a focus on rectal cancer.

• Completed medical oncology training at Marmara University
• Ranked 3rd in Turkey in minor specialty exam
• Led medical oncology unit at Haydarpaşa Numune Training and Research Hospital
• Involved in international clinical studies in medical oncology

Dr. Vafi Atalay is a colorectal and general surgeon at Anadolu Medical Center. He developed the tube ileostomy technique to eliminate the need for ostomy-closure surgery. This method was published in the journal Colorectal Disease. Dr. Atalay specializes in pancreatic, colon, rectal, and liver cancers.

• Winner of the Gold Medal Award at the Istanbul International Invention Fair.
• Authored over 30 articles in national and international medical journals.
• Received the Best Scientific Research Award from several surgical congresses.
• Practices at a clinic affiliated with the top-ranked Johns Hopkins Hospital.

Dr. Koray Karabulut is a general surgeon at Memorial Göztepe Hospital in Istanbul. He specializes in liver transplantation and robotic HPB surgery. He completed a research fellowship in liver tumors at the Cleveland Clinic. He also trained in minimally invasive surgery at IRCAD in France.

• Served as the responsible specialist at Fırat University Liver Transplant Center.
• Completed specialized robotic HPB surgery training at Ageo Medical Center in Japan.
• Authored clinical guidelines for the Turkish Surgical Society.
• Published over 400 scientific papers in journals like Surgery and Surg Endosc.

Dr. Banu Atalar is a professor and radiation oncologist at Anadolu Medical Center. She is an Honorary Fellow of the American College of Radiology (H.FACR). She completed a clinical research fellowship in stereotactic radiosurgery at Stanford University. Stereotactic radiosurgery and MR-guided adaptive SRS make up 75% of her clinical practice.

• President of the Turkish Society for Radiation Oncology.
• Chair of the ESTRO National Societies Committee.
• Recipient of the ASCO International Development and Education Award.
• Author of over 70 international peer-reviewed publications.

Dr. Huseyin Baloglu is a pathologist at Anadolu Medical Center in Turkey. He leads liquid biopsy and precision oncology services. Dr. Baloglu holds a patent for molecular diagnostics in thyroid cancer treatment. He completed training at Albert Einstein College of Medicine and Heidelberg University.

• Authored over 600 peer-reviewed publications in molecular and surgical pathology.
• Specializes in tumor biopsy, immunohistochemistry, and genetic mutation testing.
• Treats complex oncological cases, including glioblastoma and rare sarcomas.
• Works at Anadolu Medical Center, a facility affiliated with Johns Hopkins Medicine.

Dr. Ayshe Okumush is a radiation oncologist at Private NeoLife Medical Center. She earned her MD from Karadeniz Technical University in 2003. She completed a residency in radiation oncology at Sisli Etfal Training and Research Hospital from 2006 to 2011.

She served as a specialist at Diyarbakir Uckuyular Training and Research Hospital from 2011 to 2013 and at Sisli Etfal from 2013 to 2016. She then worked at Yeni Yuzyil University Private Gaziosmanpasa Hospital from 2016 to 2026. She joined NeoLife in 2026.

Memberships: Turkish Society for Radiation Oncology (TROD) and the European Society for Radiotherapy and Oncology (ESTRO). Clinical focus: SRS, SRT, SBRT; VMAT, IMRT; radiotherapy for head and neck, lung, and brain tumors; SGRT, TBI, and 3D brachytherapy.

Specialized in gastrointestinal oncology for over 27 years – Prof. Sağlam heads the Medical Oncology Department at Gayrettepe Florence Nightingale Hospital.

• Professor of Medical Oncology since 2016
• Fellowship-trained at Istanbul University – one of Turkey's leading medical schools
• Member of ESMO, ASCO, and European Neuroendocrine Tumor Society
• Previously worked at Istanbul University Oncology Institute

Dr. Mehmet Salih Iyikesici is a medical oncologist. His work focuses on metabolically supported chemotherapy (MSCT), ketogenic diet–supported cancer care, hyperthermia, hyperbaric oxygen therapy, and insulin potentiation therapy. He emphasizes care for breast, pancreatic, and gastric cancers.

He is a Medical Oncology Specialist at Neolife Medical Center (2026–present). He previously served at Private Bahçelievler Medical Park (2013–2026), Medicana Beylikdüzü (2010–2013), Silivri Anadolu (2009–2010), Diyarbakır Training and Research (2008–2009), and Bursa Çekirge State (2006–2008). Earlier, he worked as an Internal Medicine Specialist (1997–2003). He was an Assistant Professor at Altınbaş University (2014–2026).

Training: Medical Oncology subspecialty, Marmara University (2003–2006). Internal Medicine, Istanbul Haydarpaşa Numune (1992–1996). Medicine, Uludağ University (1985–1990). Member, Medical Oncology Association (since 2004). His recent research (2019–2020) covers gastric, breast, pancreatic, and lung cancers. Topics include long‑term survival in metastatic pancreatic cancer and feasibility in metastatic non‑small cell lung cancer (NSCLC).

Prof. Dr. Sefik Igdem specializes in Radiation Oncology at Gayrettepe Florence Nightingale Hospital, focusing on advanced treatments like Truebeam Stx and Halcyons.

• Professor at Demiroğlu Bilim University, a leading medical institution
• Expert in conformal treatments for precise radiation therapy
• Trained at Istanbul University, one of Turkey's top medical schools
• Specializes in head and neck cancers alongside rectal cancer

Dr. Sinan Karaaslan specializes in rectal cancer with 900+ procedures performed and 29 years of experience at Anadolu Medical Center.

• Board-certified medical oncologist with expertise in colorectal and urogenital cancers
• Member of the Turkish Medical Oncology Society and Turkish Lung Cancer Society
• Provides online consultations in Turkish for international patients
• Trained at Istanbul University's Cerrahpaşa Medical School – one of Turkey's leading institutions

Ranked first in Turkey's Medical Oncology Proficiency Exam, Dr. Keskin specializes in personalized cancer therapy using advanced genetic mapping.

• Over 900+ procedures performed with 25 years of experience
• Pioneer in immunotherapy and targeted therapy for complex cancers
• Founder and head of Oncology Center at Memorial Şişli
• Published 42+ articles in international journals
• Member of ASCO and ESMO

Mustafa Solak specializes in gastrointestinal cancers, including rectal cancer, with training at Hacettepe University Cancer Institute and MD Anderson Cancer Center.

• Trained at Hacettepe University – one of Turkey's leading medical schools
• Completed fellowship at MD Anderson Cancer Center – a globally recognized oncology institution
• Specializes in gastrointestinal cancers alongside other oncology fields
• Works at Hisar Hospital Intercontinental – a prominent healthcare facility

Performed 400+ pancreatic and gastric cancer surgeries – Prof. Peker brings extensive expertise in complex gastrointestinal surgeries.

• Specialized in Hepatopancreatobiliary Surgery at Mayo Clinic
• Founded the HPB Surgery unit at Bakırköy Dr. Sadi Konuk Hospital
• Prof. at Başakşehir Çam and Sakura City Hospital
• PhD in Medical Biology with a focus on cancer

Dr. Mehmet Akif Ozturk is a medical oncology specialist at Memorial Şişli Hospital in Istanbul. He currently serves as a faculty member at Üsküdar University. Dr. Ozturk previously held a faculty position at Marmara University Pendik Training and Research Hospital. He treats patients at a JCI-accredited facility known for its high organ transplant success rates.

• Specializes in clinical oncology for local and international patients.
• Practices at Memorial Şişli, the first hospital in Turkey to earn JCI accreditation.
• Serves as a medical oncology specialist in Istanbul since 2018.
• Held specialist roles at several major Turkish medical centers throughout his career.

Assoc. Prof. Gorkem Turkkan has successfully completed over 2,500 radiotherapy sessions with the MR-Linac device – a leader in precision radiation treatment.

• Specializes in stereotactic radiotherapy and MRI-guided treatments
• Completed clinical research at Maastricht University's MAASTRO Clinic
• Member of both Turkish and European radiation oncology societies
• Published 27 articles and 31 conference presentations
• Currently involved in two TÜBİTAK research projects

Dr. Mustafa Ozdogan is a professor and medical oncology specialist at Memorial Göztepe Hospital. He is the current President of the Antalya Breast Cancer Association. Dr. Ozdogan previously led oncology departments at Memorial Antalya and Medstar Antalya hospitals. He focuses on a multidisciplinary approach to complex cancer care.

• Sits on the board of the Turkish Society of Medical Oncology.
• Maintains active membership in ESMO and ASCO.
• Co-chairs the national working group for head and neck cancers.
• Works at Memorial Göztepe, which features MR Linac and robotic surgery systems.

Professor Yesim Yildirim has performed 900+ oncological procedures. She is a professor and a specialist in cancer immunotherapy and targeted therapies at Anadolu Medical Center.

• 22 years of experience in medical oncology
• Author of over 80 international and national publications and books
• ESMO-certified after passing their rigorous examination
• Completes advanced oncology courses and holds an MBA in healthcare management

Assoc. Prof. Dr. Heves Sürmeli is a specialist in Internal Medicine and Medical Oncology. She received her medical degree (M.D.) from Eskişehir Osmangazi University in 2004. She completed her Internal Medicine residency at Kartal Dr. Lütfi Kırdar Training and Research Hospital, Istanbul (2005–2010). She then completed subspecialty training in Medical Oncology at the same hospital (2014–2017).

At the same center, she served as a Medical Oncology Specialist (2017–2023). She then worked as Administrative and Clinical Director (2023–2026). Her clinical interests include breast, lung, gynecologic, gastrointestinal, and urologic cancers.

She has published many articles in international peer‑reviewed journals. She has presented at national and international conferences. She is active in professional societies. She has received several awards.

Dr. Eda Tanrikulu is a clinical oncologist at Anadolu Medical Center in Istanbul. She ranked 3rd nationally in Turkey's minor specialty medical exam. Dr. Tanrikulu specializes in chemotherapy and individualized cancer treatments. She works at a facility affiliated with the Johns Hopkins Hospital.

• Served as the head of the medical oncology unit at Haydarpaşa Numune Hospital.
• Participated in global training at Oxford University and ESMO in Manchester.
• Treats gastrointestinal, urological, lung, and breast cancers.
• Member of the American and European Societies of Medical Oncology.