| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.0 / 5 (1 review) | Hamburg, Germany | — | — | Complex diagnostics of retinoblastoma | — | — | World's Best Hospitals 2021 by Newsweek | |
| #2 | 4.6 / 5 (514 reviews) | Istanbul, Turkey | — | — | Radiation therapy for brain tumor, Sarcoma surgery | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | |
| #3 | 4.8 / 5 (41 reviews) | Barcelona, Spain | — | 14,000+ treatments | Autologous bone marrow transplantation, Allogenic bone marrow transplantation from a related donor | — | — | Bookimed Award: Best pediatric hospital, World's Best Specialized Hospitals 2022 by Newsweek | |
| #4 | 4.6 / 5 (17 reviews) | Guangzhou, China | — | — | Gamma Knife for brain tumor, Cryotherapy | — | — | — | |
| #5 | 4.9 / 5 (54 reviews) | Istanbul, Turkey | — | — | Brain tumor removal, Transnasal resection of tumor | — | — | Turkish Medical Association, International Health Tourism Authorization Certificate | |
| #6 | 4.6 / 5 (127 reviews) | Bangkok, Thailand | — | — | CyberKnife for brain tumor, Pituitary tumor surgery | — | — | International Organization for Standardization, Joint Commission International | |
| #7 | 4.4 / 5 (32 reviews) | Istanbul, Turkey | — | — | Autologous bone marrow transplantation, Allogenic bone marrow transplantation from an unrelated donor | — | — | The Baby-friendly Hospital Initiative (BFHI) by WHO and UNICEF, Turkish Medical Association | |
| #8 | 4.8 / 5 (6 reviews) | Seoul, Republic of Korea | — | 32,000+ treatments | Brain tumor removal, Gamma Knife for brain tumor | — | — | Global Healthcare Accreditation Program, World's Best Hospitals 2021 by Newsweek | |
| #9 | 4.2 / 5 (0 reviews) | Istanbul, Turkey | — | — | Tomotherapy | — | — | Turkish Medical Association, TEMOS International Healthcare Accreditation | |
| #10 | 4.0 / 5 (3 reviews) | Seoul, Republic of Korea | — | — | Stereotaxic radiosurgery, Cryodestruction | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation |