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.

Associate Professor Eda Tanrikulu ranked 3rd in Turkey's national medical specialty exam and leads colorectal cancer initiatives at the JCI-accredited Anadolu Medical Center.

• Completed the Colorectal Cancer Exchange Programme in Shanghai to refine treatment protocols
• Attended Oxford University's preceptorship on managing metastatic colorectal cancer cases
• Uses personalised chemotherapy and targeted biological therapies for rectal tumours
• Active member of the American Society of Clinical Oncology (ASCO)
• Former head of the medical oncology unit at Haydarpaşa Numune Hospital

Professor Atalay invented the tube ileostomy technique, a surgical breakthrough that eliminates the need for a second operation to close a stoma.

• Performs robotic low anterior resection for precise rectal tumour removal
• Specialises in colorectal oncology at the JCI-accredited Anadolu Medical Center
• Leads a multicentre surgical study in partnership with New York University
• Recipient of the Gold Medal Award at the Istanbul International Invention Fair
• Published 30+ scientific articles on gastrointestinal and oncological surgery

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.

Professor Banu Atalar leads radiation oncology at Anadolu Medical Center and is a Stanford-trained expert in precise tumor targeting. She specialises in MR-guided adaptive radiotherapy for gastrointestinal cancers, including rectal cases.

• Uses MR Linac technology to adjust radiation doses in real time as the tumour moves
• Completed a clinical research fellowship in stereotactic radiosurgery at Stanford University
• President of the Turkish Society for Radiation Oncology for the 2025–2027 term
• Recognised as an Honorary Fellow of the American College of Radiology
• Chair of the ESTRO National Societies Committee for radiation oncology

Professor Baloglu leads the precision oncology and molecular pathology programs at Anadolu Medical Center, where he specialises in accurate tumour identification.

• Performs genetic mutation testing including KRAS and NRAS to guide targeted therapy for bowel and rectal cancers
• Uses liquid biopsy – a blood-based test that detects cancer markers without needing invasive surgery
• Directs precision medicine protocols to customise treatment plans based on a patient's specific tumour biology
• Authored 600+ peer-reviewed publications focusing on diagnostic accuracy and molecular pathology
• Completed specialist fellowships at the Albert Einstein College of Medicine and Heidelberg University

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.

Professor Sezer Sağlam is a senior medical oncologist at Gayrettepe Florence Nightingale Hospital, where he focuses on gastrointestinal malignancies like rectal cancer.

• Held a long-term position as an attending physician in gastrointestinal oncology at Istanbul University.
• Member of the European Neuroendocrine Tumour Society, specialising in complex hormonal and digestive tumours.
• Trained at Istanbul University Oncology Institute, a premier centre for cancer research and clinical care.
• Maintains international standards through active membership in ESMO and the American Society of Clinical Oncology.

Professor Iyikesici is a leading clinical oncologist at Neolife Medical Center who specialises in metabolic-supported chemotherapy for managing advanced cancers.

• Uses Insulin Potentiation Therapy (IPT) to deliver chemotherapy more effectively with lower doses
• Combines standard treatments with hyperthermia – using heat to make cancer cells more sensitive
• Integrates ketogenic metabolic therapy and hyperbaric oxygen to support traditional oncology protocols
• Former Assistant Professor at Altinbas University Faculty of Medicine training future specialists
• Active member of the Medical Oncology Association since 2004

Professor Sefik Igdem leads radiation oncology at Gayrettepe Florence Nightingale Hospital, specialising in high-precision radiotherapy for rectal tumours.

• Uses TrueBeam STx technology to deliver high-dose radiation with sub-millimetre accuracy
• Specialises in conformal radiotherapy which shapes beams to the tumour to protect surrounding healthy tissue
• Professor at Demiroglu Bilim University – training the next generation of oncology specialists
• Uses Halcyon systems to shorten treatment times and improve patient comfort during sessions
• Focuses on gastrointestinal oncology including complex rectal and oesophageal cases

Dr Sinan Karaaslan has overseen more than 900 oncological procedures and leads the medical oncology department at the JCI-accredited Anadolu Medical Center.

• Specialises in managing metastatic rectal cancer cases, including stage IV adenocarcinomas
• Fellowship trained in medical oncology at the Istanbul University Cerrahpaşa Medical Faculty
• Provides multidisciplinary second opinions for complex gastrointestinal malignancies
• Member of the Turkish Medical Oncology Society and the Turkish Lung Cancer Society

Professor Serkan Keskin is a pioneer in personalised cancer therapy, having led Turkey's national oncology proficiency exams. He heads the Oncology Centre at Memorial Şişli Hospital, where he has performed over 900 procedures.

• Uses genetic mapping of 600+ genes to tailor specific drug therapies
• Specialises in immunotherapy and targeted therapy for complex cases
• Active member of the American Society of Clinical Oncology (ASCO)
• Published over 40 research articles in international medical journals

Professor Mustafa Solak deepened his oncology expertise at the MD Anderson Cancer Center – arguably the world's most prestigious cancer institution. He focuses on gastrointestinal cancers, providing evidence-based care for complex rectal cases.

• Trained at the Hacettepe University Cancer Institute, a premier national research centre
• Specialises in medical oncology for gastrointestinal and colorectal tumours
• Uses systemic therapies to shrink tumours before surgery or manage advanced disease
• Member of the European Society for Medical Oncology (ESMO)
• Collaborates with multidisciplinary teams to coordinate surgery and radiation plans

Professor Kivanc Derya Peker is a specialist gastroenterology surgeon who trained at the prestigious Mayo Clinic in the USA. He established the Gastroenterology Surgery Clinic at Basaksehir Cam and Sakura City Hospital.

• Holds a PhD in medical biology and cancer biology for deeper insights into tumour behaviour
• Specialises in gastroenterology surgery involving the digestive tract and bowel
• Performs liver and stomach cancer surgeries with high precision and volume
• Member of the Turkish Surgical Association with specialist training in digestive system disorders

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.

Associate Professor Gorkem Turkkan is a leader in precision radiation oncology, having successfully completed more than 2,500 sessions using the MR-Linac device.

• Specialises in MRI-guided radiotherapy – provides real-time imaging during treatment to hit tumours with pinpoint accuracy while sparing healthy tissue
• Completed a clinical research fellowship at the MAASTRO Clinic in the Netherlands focusing on stereotactic treatments
• Expert in Volumetric Arc Therapy (VMAT) for fast, targeted delivery of radiation to rectal tumours
• Member of the European Society of Radiotherapy and Oncology (ESTRO)

Professor Mustafa Ozdogan is a senior medical oncologist and board member of the Turkish Society of Medical Oncology at Memorial Göztepe Hospital.

• Specialises in medical oncology, managing systemic treatments for advanced gastrointestinal and rectal tumours
• Serves as a member of the European Society for Medical Oncology (ESMO)
• Collaborates within the American Society of Clinical Oncology (ASCO) on international treatment protocols
• Former Head of Oncology at Memorial Antalya Hospital, overseeing complex cancer care delivery

Associate Professor Heves Surmeli is a specialist clinical oncologist at Hisar Hospital Intercontinental with a strong focus on gastrointestinal cancers. She previously led the Medical Oncology Clinic at Kartal Dr. Lütfi Kırdar Training and Research Hospital as Administrative and Clinical Director.

• Specialises in medical oncology for rectal and gastrointestinal tumours
• Former Director of a major metropolitan oncology training centre
• Published researcher in international peer-reviewed medical journals
• Member of several professional oncology societies for cancer research
• Focuses on evidence-based protocols for complex tumour management

Professor Yesim Yildirim is a leading medical oncologist at Anadolu Medical Center, specialising in immunotherapy and targeted treatments for gastrointestinal tumours.

• Awarded the Orazio Rudell Fellowship for her work in colorectal oncology in London
• Uses precision medicine to tailor cancer treatments to a patient's specific genetic profile
• Active member of the European Society of Medical Oncology (ESMO) since 2011
• Co-authored the 'Handbook of Advanced Cancer Care Treatment' for specialist medical training
• Completed immunooncology training at the Mount Vernon Cancer Centre in London

Associate Professor Eda Tanrıkulu Şimşek specialises in gastrointestinal oncology and achieved third place nationwide in Turkey's medical specialty exams. She leads international clinical trials to bring new cancer therapies to her patients.

• Completed specialist colorectal cancer training at Oxford University in England
• Former Head of Medical Oncology at Haydarpaşa Numune Training and Research Hospital
• Uses targeted therapy to match treatments to a tumour's specific genetic profile
• Active member of the European Society for Medical Oncology (ESMO)