| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (487) | Barcelona, Spain | — | 23,000+ treatments | Gastric polyps removal, Immunotherapy for kidney cancer | — | — | Joint Commission International , European Foundation for Quality Management | |
| #2 | 4.6 / 5 (536) | Istanbul, Turkey | — | — | Stomach cancer surgery, Radiotherapy for breast cancer | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | |
| #3 | 4.7 / 5 (44) | Barcelona, Spain | — | 14,000+ treatments | Nephrectomy, Bone marrow transplantation | — | — | Bookimed Award: Best pediatric hospital, World's Best Specialized Hospitals 2022 by Newsweek | |
| #4 | 4.5 / 5 (495) | Istanbul, Turkey | — | — | Gamma Knife for brain tumor, Lung cancer surgery | — | — | Joint Commission International , Patient choice in Pediatric Oncology & Hematology Oncology | |
| #5 | 4.6 / 5 (131) | Bangkok, Thailand | — | — | CyberKnife for brain tumor, CyberKnife | — | — | International Organization for Standardization, Joint Commission International | |
| #6 | 4.1 / 5 (42) | Istanbul, Turkey | 10+ years | Radiotherapy for breast cancer, Gastroectomy | — | — | The Baby-friendly Hospital Initiative (BFHI) by WHO and UNICEF, Turkish Medical Association | ||
| #7 | 4.5 / 5 (57) | Frankfurt am Main, Germany | — | — | Chemotherapy for stomach cancer, Chemotherapy for uterine cancer | — | — | TÜV AG Сompany Research & Investing Certificate, TOP German hospital according to 2019 Focus ranking | |
| #8 | 3.5 / 5 (4) | Seoul, Republic of Korea | — | — | Nephrectomy, Brain tumor surgery | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #9 | 4.5 / 5 (43) | Seoul, Republic of Korea | — | — | CyberKnife, CyberKnife for brain tumor | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #10 | 5.0 / 5 (1) | Seoul, Republic of Korea | — | — | Chemotherapy for gallbladder cancer, Removal of liver cancer | — | — | World's Best Hospitals 2021 by Newsweek, World's Best Smart Hospitals 2021 by Newsweek |