| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (442 reviews) | Barcelona, Spain | — | 23,000+ treatments | Breast cancer surgery, Stereotaxic surgeries | — | — | Joint Commission International , European Foundation for Quality Management | |
| #2 | 4.6 / 5 (518 reviews) | Istanbul, Turkey | — | — | Gastroectomy, CyberKnife for brain tumor | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | |
| #3 | 4.7 / 5 (156 reviews) | Vienna, Austria | — | — | Gastric polyps removal, Chemotherapy | — | — | International Organization for Standardization, World's Best Hospitals 2021 by Newsweek | |
| #4 | 4.6 / 5 (364 reviews) | Istanbul, Turkey | — | — | Lymphadenectomy, Removal of meningioma | — | — | International Organization for Standardization, Joint Commission International | |
| #5 | 4.7 / 5 (62 reviews) | Solingen, Germany | — | — | Chemotherapy for ovarian cancer, Radiation therapy for brain tumor | — | — | Best doctor for herniated disc treatment, German Cancer Society | |
| #6 | 3.5 / 5 (0 reviews) | Xiamen, China | — | — | Comprehensive prostate cancer diagnosis | — | — | — | |
| #7 | 4.6 / 5 (221 reviews) | Istanbul, Turkey | 20+ years | Removal of colon cancer, Allogenic bone marrow transplantation from a related donor | — | — | Joint Commission International , Turkish Medical Association (Türk Tabıplerı Bırliği) | ||
| #8 | 4.6 / 5 (130 reviews) | Hamburg, Germany | — | — | Radiation therapy for colorectal cancer, CyberKnife for lung cancer | — | — | International Organization for Standardization, Medical Travel Quality Alliance | |
| #9 | 4.0 / 5 (1 review) | Hamburg, Germany | — | — | Nephrectomy, Gastroectomy | — | — | World's Best Hospitals 2021 by Newsweek | |
| #10 | 4.5 / 5 (156 reviews) | Tel Aviv, Israel | 41+ years34,000+ treatments | SIRT therapy, Prostatectomy | — | — | World's Best Smart Hospitals 2021 by Newsweek, World's Best Hospitals 2021 by Newsweek |