| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (514 reviews) | Istanbul, Turkey | — | — | Haploidentical Stem Cell Transplantation, Brain tumor removal | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | |
| #2 | 4.7 / 5 (7 reviews) | Hamburg, Germany | — | — | Chemotherapy | — | — | International Organization for Standardization, CERTKOM certificate for qualified pain therapy | |
| #3 | 4.0 / 5 (1 review) | Hamburg, Germany | — | — | Chemotherapy | — | — | World's Best Hospitals 2021 by Newsweek | |
| #4 | 4.5 / 5 (51 reviews) | Istanbul, Turkey | — | — | Plastic surgery for cardiac valve, Enucleation of eye | — | — | Joint Commission International | |
| #5 | 4.7 / 5 (154 reviews) | Vienna, Austria | — | — | Chemotherapy | — | — | International Organization for Standardization, World's Best Hospitals 2021 by Newsweek | |
| #6 | 4.7 / 5 (16 reviews) | Baku, Azerbaijan | — | — | Brain tumor surgery, Chemotherapy | — | — | Joint Commission International , Patient choice for Check-up | |
| #7 | 4.9 / 5 (45 reviews) | Milan, Italy | — | 8,000+ treatments | Radiofrequency ablation, Coronary angiography | — | — | Scientific Institute for Research and Healthcare Accrediatation, World's Best Hospitals 2021 by Newsweek | |
| #8 | 4.6 / 5 (66 reviews) | Milan, Italy | — | 8,000+ treatments | Gamma Knife for brain tumor, Chemotherapy | — | — | Scientific Institute for Research and Healthcare Accrediatation, World's Best Hospitals 2021 by Newsweek | |
| #9 | 4.8 / 5 (172 reviews) | Istanbul, Turkey | 37+ years | Radiofrequency ablation | — | — | Certification according to DIN EN ISO 9001 by TÜV NORD CERT, Joint Commission International | ||
| #10 | 4.0 / 5 (0 reviews) | Seoul, Republic of Korea | — | — | Bone marrow transplantation | — | — | — |