| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (236 reviews) | Istanbul, Turkey | 22+ years | Radical subtotal gastrectomy, CyberKnife, Gamma Knife, chemotherapy | Complex gastric cancer cases | Performs over 400 pancreatic and gastric cancer surgeries. JCI-accredited with advanced radiation oncology equipment like CyberKnife and Gamma Knife. | Joint Commission International , Turkish Medical Association (Türk Tabıplerı Bırliği) | ||
| #2 | 4.8 / 5 (151 reviews) | İzmir, Turkey | — | — | PET/CT | — | — | Turkish Medical Association, American Association of Orthodontists | |
| #3 | 4.8 / 5 (230 reviews) | Istanbul, Turkey | — | — | Stomach resection, CT (computer tomography) | — | — | Certification according to DIN EN ISO 9001 by TÜV NORD CERT, Joint Commission International | |
| #4 | 4.7 / 5 (510 reviews) | Istanbul, Turkey | 43+ years | — | — | — | — | ||
| #5 | 4.6 / 5 (417 reviews) | Istanbul, Turkey | 25+ years | Chemotherapy, immunotherapy with Keytruda, CyberKnife, Gamma Knife | Advanced or complex stomach cancer cases | JCI-accredited hospital with advanced radiotherapy devices like TrueBeam STx and IMRT. Specialists perform over 3,000 procedures annually and follow NCCN and ESMO protocols. | International Organization for Standardization, Joint Commission International |