| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (218 reviews) | Istanbul, Turkey | 20+ years | Throat cancer operation, Removal of spinal cord tumor | — | — | Joint Commission International , Turkish Medical Association (Türk Tabıplerı Bırliği) | ||
| #2 | 4.7 / 5 (361 reviews) | Istanbul, Turkey | — | — | Pituitary tumor surgery, Thyroidectomy | — | — | International Organization for Standardization, Joint Commission International | |
| #3 | 4.6 / 5 (517 reviews) | Istanbul, Turkey | 49+ years3,000+ treatments | Radiofrequency ablation of the liver, Excision of skull base tumor | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | ||
| #4 | 4.7 / 5 (441 reviews) | Barcelona, Spain | 39+ years1,000+ treatments | Immunotherapy for kidney cancer, Proton-beam therapy | — | — | Joint Commission International , European Foundation for Quality Management | ||
| #5 | 4.6 / 5 (128 reviews) | Antalya , Turkey | — | — | Autologous bone marrow transplantation, Prostatectomy | — | — | Joint Commission International | |
| #6 | 4.4 / 5 (6 reviews) | Barcelona, Spain | 38+ years | Gastroectomy, Stomach cancer surgery | — | — | Joint Commission International | ||
| #7 | 4.6 / 5 (136 reviews) | Istanbul, Turkey | 44+ years | Allogenic bone marrow transplantation from a related donor, Radioiodine therapy | — | — | International Organization for Standardization, Joint Commission International | ||
| #8 | 4.7 / 5 (156 reviews) | Vienna, Austria | 48+ years | Gastric polyps removal, Chemotherapy | — | — | International Organization for Standardization, World's Best Hospitals 2021 by Newsweek | ||
| #9 | 4.6 / 5 (473 reviews) | Istanbul, Turkey | — | NanoKnife, Radioiodine therapy | — | — | Joint Commission International , Patient choice in Pediatric Oncology & Hematology Oncology | ||
| #10 | 5.0 / 5 (3 reviews) | Incheon, Republic of Korea | — | — | PET/CT | — | — | Korean Institute for Healthcare Accreditation |