| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (536) | Istanbul, Turkey | 33+ years | Radiation therapy for colorectal cancer, Nephrectomy | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | ||
| #2 | 4.7 / 5 (487) | Barcelona, Spain | 43+ years23,000+ treatments | Laparoscopic prostatectomy, CyberKnife for brain tumor | — | — | Joint Commission International , European Foundation for Quality Management | ||
| #3 | 4.5 / 5 (166) | Tel Aviv, Israel | 38+ years34,000+ treatments | Radiotherapy for lung cancer, Transnasal resection of tumor | — | — | World's Best Smart Hospitals 2021 by Newsweek, World's Best Hospitals 2021 by Newsweek | ||
| #4 | 5.0 / 5 (1) | Madrid, Spain | — | — | Consultation of a radiologist | — | — | Joint Commission International , International Organization for Standardization | |
| #5 | 4.5 / 5 (243) | Istanbul, Turkey | 20+ years | Breast cancer surgery, Throat cancer operation | — | — | Joint Commission International , Turkish Medical Association (Türk Tabıplerı Bırliği) | ||
| #6 | 4.6 / 5 (156) | Istanbul, Turkey | — | — | Gamma Knife for brain tumor, Lymphadenectomy | — | — | International Organization for Standardization, Joint Commission International | |
| #7 | 4.6 / 5 (174) | Vienna, Austria | — | — | Gastric polyps removal, Chemotherapy | — | — | World's Best Hospitals 2021 by Newsweek, International Organization for Standardization | |
| #8 | 4.7 / 5 (66) | Solingen, Germany | — | — | Chemotherapy for stomach cancer, Craniotomy | — | — | Best doctor for herniated disc treatment, German Cancer Society | |
| #9 | 3.8 / 5 (6) | Madrid, Spain | — | — | Allogenic bone marrow transplantation from a related donor, Bone marrow transplantation | — | — | World's Best Hospitals 2021 by Newsweek | |
| #10 | 4.8 / 5 (240) | Istanbul, Turkey | — | — | Radiofrequency ablation, Mastectomy | — | — | Certification according to DIN EN ISO 9001 by TÜV NORD CERT, Joint Commission International |