Best Rectal cancer oncologists: TOP 124 doctors

Surgeon, specialist in colorectal operations

Dr. Huseyin Bektas is a Professor of Medical Sciences, Oncosurgeon and published author. He is a Member of the Association of Hepatobiliary and Pancreatic Surgery and a Teacher at the Hanover School of Medicine. He is also the Chief Physician at the Bremen-Mitte Hospital Department of General, Visceral and Oncological Surgery.

Dr. Abu Shamsiya Rami Nuamanovych is a specialist in general and laparoscopic surgery, oncology, and ultrasound diagnostics. He is a Candidate of Medical Sciences, an associate professor, and a doctor of the highest category. Dr. Nuamanovych is a member of the Ukrainian Association of Bariatric Surgeons and the World Organization of Bariatric Surgeons (IFSO).

He works as a WHO consultant on laparoscopic surgery. He is also President of the Association of Arab Doctors of Ukraine. Dr. Nuamanovych has performed thousands of surgeries, including hernia repairs, bariatric procedures, and cancer operations. His skills are recognized internationally. He speaks English and Arabic fluently.

AREAS OF INTEREST

• Breast cancer
• Colon cancer
• Lung cancer
• Malignant melanoma
• Urogenital cancers
• Gynecological cancers
• Digestive sy cancers

Education and Specialization

• 1987-1993 BSc Faculty of Medicine, Uludağ University Faculty of Medicine
• 1994-1999 BSc Internal Medicine Ondokuz Mayıs University Faculty of Medicine
• 2008-2011 PhD Medical Oncology Ankara Numune Training and Research Hospital
• 2016 Assoc. Prof. / Prof. Dr. Medical Oncology Okmeydanı Training and Research Hospital

Experience

• 1993-1994 General Practitioner Senirkent State Hospital Senirkent, Isparta
• 1994-1999 Research Position Ondokuz Mayıs University Faculty of Medicine Internal Medicine Department, Samsun
• 2000-2006 Specialist Doctor Diyarbakır SSK Hospital, Diyarbakır
• 2006-2008 Specialist Doctor Diyarbakır State Hospital, Diyarbakır
• 2008-2011 Dr. Minor Assistant Ankara Numune Training and Research Hospital
• 2011-2013 Specialist Doctor Diyarbakır Training and Research Hospital, Medical Oncology
• 2013- 2016 Specialist Doctor Okmeydanı Training and Research Hospital, Medical Oncology Clinic
• 2016 Education Manager Okmeydanı Training and Research Hospital, Medical Oncology Clinic, Assoc. Prof.

Professional Memberships

Turkish Society of Medical Oncology

Education and Training:

• Medical Degree: Graduated from Uludağ University Faculty of Medicine in 1993.
• Specialization in Internal Medicine: Completed at Ondokuz Mayıs University Faculty of Medicine in 1999.
• Medical Oncology Fellowship: Completed at Ankara Numune Research and Training Hospital in 2011.
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• Professional Experience:
• Isparta Senirkent State Hospital: Completed his mandatory service as an Internal Medicine Specialist and Hemodialysis Responsible Physician (1993-1994).
• Prof. Dr. Gazi Yaşargil Training and Research Hospital: Served as a Medical Oncologist (2011-2013).
• Okmeydanı Research and Training Hospital: Achieved the title of Associate Professor and later full Professor, significantly contributing to medical oncology (2013-2016).
• Current Position: Professor of Medical Oncology at İstinye University Hospital Medical Park Gaziosmanpaşa, Istanbul, where he continues to provide top-tier oncology care and mentorship.

Areas of Expertise:

• Cancer Treatment: Specializes in the treatment of various cancers, including breast, colon, lung, malignant melanoma, urogenital, gynecological, and gastrointestinal cancers.
• Advanced Therapies: Proficient in administering chemotherapy, immunotherapy, and other cutting-edge treatments for cancer patients.
• Research and Education: Actively involved in cancer research and dedicated to educating the next generation of oncologists, continuously enhancing the field through both clinical practice and academic contributions.

• Extensive Experience:
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• With over 24 years of medical practice, Prof. Dr. Cihan is a highly respected figure in oncology, known for his comprehensive approach to cancer treatment.
• International Recognition: Participates in numerous international seminars and congresses, keeping abreast of the latest advancements in oncology.
• Patient-Centric Care: Renowned for his compassionate and personalized approach to patient care, ensuring tailored treatment plans that address the unique needs of each patient.
• Multidisciplinary Collaboration: Works with a multidisciplinary team of experts at Medical Park, providing holistic and coordinated care to achieve the best possible outcomes for patients.

Achievements and Awards:

• Academic Contributions: Has contributed significantly to oncology literature and research, with numerous publications in reputable medical journals.
• Leadership in Oncology: Recognized for his leadership in oncology, both in clinical settings and academic institutions, influencing cancer treatment practices and policies.

Prof. Kıvanç Derya Peker completed his medical education and general surgery specialization at Istanbul University Istanbul Faculty of Medicine (Çapa). After his major specialization, he got his Gastroenterology Surgery Specialization from the Gastroenterology Surgery Clinic of Kartal Koşuyolu Yüksek İhtisas Training and Research Hospital by entering the top 3 in the minor examination.

During his sub-branch assistantship, he received a scholarship from the Turkish Surgery Association and worked at Mayo Clinic (Rochester, USA) Hepatopancreatobiliary Surgery Clinic and Obesity-Metabolic Surgery Clinic. After returning to Turkey, He was one of the founders of the Hepatopancreatobiliary Surgery unit at Bakırköy Dr. Sadi Konuk Training and Research Hospital. Peker provided Hepatopancreatobiliary Surgery training to general surgery residents and gastroenterology surgery residents in this hospital, which is accepted as a training unit by the Turkish HPB Association.

On the other hand; In order to learn , cancer biology, cellular properties of obesity and aging, he did his doctorate and thesis on aging at Istanbul University, Istanbul Faculty of Medicine (Çapa), Department of Medical Biology. Then, he moved to Başakşehir Çam and Sakura City Hospital to establish the Gastroenterology Surgery Clinic.

Especially in his career; He is interested in Pancreatic Diseases and Surgery, Gallbladder and Bile Duct Diseases Surgery, Liver Cancer Surgery, Stomach Cancer Surgery and Obesity-Metabolic Surgery. Peker has carried out many successful operations. He has performed over 400 pancreatic and gastric cancer surgeries, over 200 liver surgeries, many surgeries related to gallbladder and biliary tract diseases, obesity – metabolic surgery and endoscopic treatments, and kidney transplants so far. He is also interested in aging and treatments.

MEDICAL INTERESTS

• Pancreatic Surgery
• Gallbladder and Tracts Surgery
• Liver Diseases Surgery
• Stomach Diseases and Stomach Cancer Surgery
• Obesity – Metabolic Surgery and Endoscopic Treatments
• Kidney Transplant

Assoc. Dr. Görkem TÜRKKAN started his medical education at Gülhane Military Medical Academy in 2003 and completed it in 2009 at Zonguldak Karaelmas (Bülent Ecevit) University Faculty of Medicine. He completed his residency in the Department of Radiation Oncology at Trakya University Faculty of Medicine and became a radiation oncology specialist in 2016.

After completing his compulsory service, he served as a Doctor Lecturer and Head of Department at Muğla Sıtkı Koçman University Faculty of Medicine, Department of Radiation Oncology from May 2019 to February 2021. During this period, between March and June 2020, he worked as a clinical researcher in the Department of Radiation Oncology at Maastricht University Medical Center–MAASTRO Clinic (Netherlands) on studies related to stereotactic radiotherapy, thoracic radiation therapy-associated lung toxicity, and proton therapy. Between March 2021 and April 2023, he worked at the Radiation Oncology Department of Istinye University Faculty of Medicine and Liv Hospital Ulus Radiation Oncology Clinic, where he received the title of Associate Professor in February 2023. He has been providing services to his patients at Hisar Hospital Intercontinental since May 2023.

Throughout his professional life, he has performed both traditional and advanced radiotherapy practices. Particularly, he is one of the experienced physicians in Turkey in stereotactic radiotherapy and MRI-guided radiotherapy treatments, which are gaining popularity and usage recently. So far, he has successfully completed over 2500 radiotherapy sessions using the MR-Linac device.

Since 2013, he has been a member of the Turkish Radiation Oncology Society (TROD) and since 2015 a member of the European Society for Radiotherapy and Oncology (ESTRO). He has 27 published articles in national and international journals, 31 oral-poster presentations at national and international congresses, and 5 book chapters published by national and international publishers. He has taught undergraduate courses in Period I and Period V at Muğla Sıtkı Koçman University Faculty of Medicine, master’s courses within the ENT Department Specialist training, and Radiation Therapy associate degree courses at Istinye University Health Services Vocational School. He is currently involved in 2 ongoing TÜBİTAK Projects. He is married and has one son.

MEDICAL INTERESTS

• MR-Linac
• Linac
• Stereotactic (Precision) Radiotherapy
• Prostate Cancers
• Breast Cancers
• Lung Cancers
• Rectal Cancers
• Brain and Spinal Cord Cancers
• Head and Neck Cancers
• Volumetric Arc Therapy (VMAT)
• Intensity-Modulated Radiation Therapy (IMRT)
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Head of the Internal Medicine Department, Gastroenterologist

Prof. Dr. med. Ulrich Graven

Head of the Clinic of Hematology, Oncology and Gastroenterology

Head of a certified oncology center

Head of Clinical Research Department

Specialization:

Hematology, including transplantation

Abdominal oncology, especially colorectal and pancreatic cancer therapy

Metastasis therapy, including the use of off-label drugs

Membership in professional societies:

Professional Union of German Therapists

German Society for Internal Medicine

German Cancer Society

Abdominal Oncology Working Group

German Society of Hematology and Oncology

German Working Group on and Hematopoietic Cell Transplantation

German Society for Digestive and Metabolic Diseases

European Society for Medical Oncology

American Society of Clinical Oncology

American Association for Cancer Research

Activities in professional communities:

German Cancer Society:

Since 2013, speaker of the commission for certification of oncology centers

Since November 2007, member of the board

Since September 2022, Speaker of the Section of National Societies on Cancer Control

Chairman of the working group on abdominal oncology of the German Cancer Society, drafting clinical guidelines for the treatment of colorectal and pancreatic cancer.

Chairman of the Oncology Society of North Rhine-Westphalia.

Member of the Colorectal Cancer Clinical Guidelines Working Group, European Society for Medical Oncology.

Member of the Scientific Council, National Cancer Registry at the Robert Koch Institute.

Chairman of the Regional Cancer Registry of the State of North Rhine-Westphalia.

Leading expert for clinical research, German Research Foundation and Federal Ministry of Research and Technology.

Member of the Commission on the Use of Medicines for Therapy "Off-Label", Federal Institute of Medicines and Medical Devices.

Member of the committee for the development of clinical guidelines for colorectal cancer.

Member of the commission on the development of approaches to metastasis and the use of palliative therapy in clinical guidelines for colorectal cancer.

Reviewer of scientific journals such as Journal of Cancer Research and Clinical Oncology, Tumor Diagnostik und Therapie, Der Schmerz, BMC Pharmacology, Onkologie, Strahlentherapie und Onkologie, International Journal of Colorectal Disease, Annuals of Oncology, European Journal of Cancer.

Oncologist

Dr. Alper Can is a Medical Oncology specialist with broad experience in treating many types of cancer. His expertise covers lung, breast, colorectal, gastric, liver, kidney, pancreatic, stomach, prostate, uterine, and thyroid cancers. He is skilled in chemotherapy, immunotherapy, phytotherapy, ozone therapy, and hyperthermic chemotherapy. Dr. Can focuses on gastrointestinal, gynecological, and genitourinary cancers.

He completed his medical degree at Istanbul University. He received advanced oncology training at Katip Çelebi University. Dr. Can has worked as Assistant and Associate Professor at Yüzüncü Yıl University. He is a member of several oncology societies, including ESMO, ESGO, and IASLC. He also holds accreditation from the International Association for the Study of Lung Cancer.

Dr. Haluk Onat is a respected medical oncologist. He earned his medical degree in 1976, completed his Internal Medicine training in 1981, and specialized in Medical Oncology in 1987. He became a Professor of Internal Medicine in 1993. Dr. Onat has worked at Istanbul University Oncology Institute, Anadolu Medical Center, and Istanbul Oncology Hospital.

He is a founding member of the Turkish Oncology Foundation and the Medical Oncology Association. Dr. Onat is also an active member of ESMO, ASCO, and EACR. He has contributed to international research groups such as EORTC and CECOG. Dr. Onat has published many scientific articles and has helped improve cancer treatment in Turkey and abroad.

Dr. Sinemis Çelik is a medical oncology specialist with 11 years of clinical experience. She has worked at leading Turkish institutions, including Pamukkale University Faculty of Medicine and Istanbul Oncology Hospital. At Okan University Hospital, she served as Head of the Education Committee. This role shows her dedication to medical education and clinical quality.

Dr. Çelik is a member of the Turkish Medical Oncology Association, the European Society of Medical Oncology, and the American Society of Clinical Oncology. She also holds certification from these organizations. Her practice focuses on evidence-based care and improving oncology standards in Turkey.

Dr. Vitaly Sholokh is an experienced surgeon and oncosurgeon with more than 16 years in clinical practice. He performs open and laparoscopic abdominal surgeries. He also specializes in minimally invasive phlebology, including endovenous laser coagulation, sclerotherapy, and miniphlebectomy. In addition, he uses advanced techniques in proctology.

Dr. Sholokh earned his medical degree from Odessa State Medical University. He completed his surgical internship after graduation. He has worked in top surgical departments, such as Odessa Railway Hospital, St. Catherine’s Clinic, and OMD-CLINIC. He is a member of the Odessa Association of Surgeons and the European Association of Endoscopic Surgeons (EAST).