Best Stomach cancer surgery oncologists in Istanbul: TOP 36 doctors

Assoc. Prof. Kıvanç Derya Peker is a surgeon with expertise in pancreatic, gallbladder, liver, and stomach surgeries. He also specializes in obesity and metabolic surgery, as well as kidney transplantation. He completed his medical and surgical training at Istanbul University. He ranked among the top three in the national minor specialty exam for gastroenterological surgery.

Dr. Peker has performed over 400 pancreatic and gastric cancer surgeries and more than 200 liver surgeries. He has also completed many gallbladder, biliary tract, obesity-metabolic procedures, and kidney transplants. He received training at the Mayo Clinic. He co-founded the Hepatopancreatobiliary Surgery unit at Bakırköy Dr. Sadi Konuk Hospital. There, he provided advanced training to surgical residents.

He is known for his research in aging and treatments. Dr. Peker has established gastroenterology surgery clinics at major hospitals. He is accredited by the Turkish HPB Association and has received a scholarship from the Turkish Surgery Association.

Medical Interests and Activities 

Gastrointestinal diseases 

Oncologic laparoscopic surgery 

Anorectal area diseases 

Urgent surgical cases (acute cholecystitis, divertikülit, ileus, pankreatit, appendicitis) 

Colon and rectum cancer 

Treatment of oncologic surgical cases with further laparoscopic and robotic surgery. 

Laparoscopic hernia surgery 

Esophagus and stomach cancer 

Selim anorectal diseases (hemorrhoidal disease, anal fissure), perianal fistula, pilonoidal sinus (hairless- non-surgical treatment)

Education and Experience 

İstanbul University Medical Faculty 1988 

University of Colorado Health Science Center – Intern Surgeon 

Isparta, Dedeçam Şehit Ramazan Karaca Health Center (1995-1996) 

İstanbul Surgery Hospital – American Hospital (2000-2001) 

Chief assistant Istanbul Medical Faculty, Department of General Surgery (2001-2008) 

World Congress on Peritonel Surface Malignancies (HIPEC course) Berlin, Germany (2012) 

USC Keck School of Medicine, Los Angeles, CA, USA (2006-2007) 

Assoc. Prof. M.D. , İstanbul Medical Faculty General Surgery (2008-2014) 

Da Vinci Robotic Intensive Course at IRCAD, Strasbourg, France (2011) 

Stony Brook Medicine Cadaver Training Event in Colon and Rectal Surgery, New York, USA (2016) (Instructor) 

Fellow of the European Board of Surgery- Emergency Surgery (FEBS EmSurg) Honorary Diploma (2017) 

Prof. M.D. , İstanbul Medical Faculty General Surgery (2014 -2017) 

İstanbul University Medical Faculty – General Surgery Master of Science 1996 

University of Southern California Medical Center, Department of General Surgery, Los Angeles, USA – February 2006 – February 2007

Liv Hospital

Memberships 

Turkish Society of Surgery 

National Endoscopic Laparoscopic Surgery Association 

Turkish Colon and Rectum Surgery Association 

National Trauma and Emergency Surgery Association 

Hepato-Pancreato-Bilier Surgery Association 

Istanbul Surgical Association 

Flebology Association 

ESTES (European Society of Trauma and Emergency Surgery) 

International Society of Surgery (ISS)

Dr. Mustafa Solak is a medical oncologist with expertise in breast, testicular, ovarian, lung, head-neck, and gastrointestinal cancers. He graduated from Hacettepe University School of Medicine. He completed his residency at Istanbul Sisli Etfal Teaching and Research Hospital. He then pursued a fellowship at Hacettepe University Cancer Institute.

Dr. Solak has managed many complex cancer cases. He has contributed to clinical advancements at respected centers, including the University of Texas MD Anderson Cancer Center. He has also worked at Hitit University Corum Training Hospital and Medical Park Hospital. His experience shows a strong commitment to cancer care and research.

Education and Career

2011 – 2015, (Internal Medicine Specialist) Istanbul University Istanbul School of Education and Career

Medicine Department of Internal Medicine

2015 – 2016, (Internal Medicine) Specialist Istanbul Haydarpasa Numune Training and Research Hospital

2016 – 2019, (Medical Oncology) Istanbul University Istanbul School of Medicine Department of Medical Oncology

2019 – 2021, (Medical Oncology Specialist) - Istanbul Haydarpasa Numune Training and Research Hospital

2021 – 2024, (Associate Professor) Marmara University School of Medicine Department of Medical Oncology

Memberships in Scientific Organizations

ASCO

ESMO

TTOD 

AVOD 

Publications

In the field of oncology, he has published over 30 peer-reviewed articles at both international and national levels.

Awards Received

EAACI The European Academy of Allergy and Clinical Immunology 2019 Best Poster Award

"The top 3rd verbal presentation, IGICC (11th International Gastrointestinal Cancers Conference – IGICC2021)"

Speeches Delivered at National Congresses, Conferences, and Symposia:

Courses, Meetings, and Certificates

ESMO certified Medical Oncologist since 2019