| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (517 reviews) | Istanbul, Turkey | — | — | Excision of skull base tumor, Radiation therapy for brain tumor | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | |
| #2 | 4.5 / 5 (51 reviews) | Istanbul, Turkey | — | — | Brain tumor removal, Radiofrequency ablation | — | — | Joint Commission International | |
| #3 | 4.7 / 5 (156 reviews) | Vienna, Austria | — | — | Chemotherapy | — | — | International Organization for Standardization, World's Best Hospitals 2021 by Newsweek | |
| #4 | 4.9 / 5 (46 reviews) | Milan, Italy | — | 8,000+ treatments | Coronary angiography, Radiofrequency ablation | — | — | Scientific Institute for Research and Healthcare Accrediatation, World's Best Hospitals 2021 by Newsweek | |
| #5 | 4.6 / 5 (66 reviews) | Milan, Italy | — | 8,000+ treatments | Chemotherapy, Bone marrow transplantation | — | — | Scientific Institute for Research and Healthcare Accrediatation, World's Best Hospitals 2021 by Newsweek | |
| #6 | 4.7 / 5 (16 reviews) | Baku, Azerbaijan | — | — | Chemotherapy, Brain tumor surgery | — | — | Joint Commission International , Patient choice for Check-up | |
| #7 | 4.0 / 5 (0 reviews) | Seoul, Republic of Korea | — | — | Bone marrow transplantation | — | — | — | |
| #8 | 4.5 / 5 (52 reviews) | Frankfurt am Main, Germany | — | — | Chemotherapy, Radiotherapy | — | — | TÜV AG Сompany Research & Investing Certificate, TOP German hospital according to 2019 Focus ranking | |
| #9 | 4.8 / 5 (188 reviews) | Istanbul, Turkey | 37+ years | Radiofrequency ablation | — | — | Certification according to DIN EN ISO 9001 by TÜV NORD CERT, Joint Commission International | ||
| #10 | 5.0 / 5 (15 reviews) | Istanbul, Turkey | — | — | Coagulogram | — | — | Turkish Medical Association, International Federation for the Surgery of Obesity and Metabolic Disorders Certificate |