| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.5 / 5 (52 reviews) | Frankfurt am Main, Germany | — | — | Immunotherapy for breast cancer, Lung cancer surgery | — | — | TÜV AG Сompany Research & Investing Certificate, TOP German hospital according to 2019 Focus ranking | |
| #2 | 4.6 / 5 (514 reviews) | Istanbul, Turkey | — | — | Radiotherapy for lung cancer, Radiation therapy for brain tumor | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | |
| #3 | 4.6 / 5 (17 reviews) | Guangzhou, China | — | — | NanoKnife, Chemoembolization of the liver | — | — | — | |
| #4 | 4.7 / 5 (61 reviews) | Solingen, Germany | — | — | Chemotherapy for prostate cancer, Radioiodine therapy | — | — | Best doctor for herniated disc treatment, German Cancer Society | |
| #5 | 5.0 / 5 (3 reviews) | Cologne, Germany | — | — | Radiation therapy for colorectal cancer, Radiotherapy for cervical cancer | — | — | — | |
| #6 | 4.6 / 5 (127 reviews) | Bangkok, Thailand | — | — | Lung cancer surgery, Targeted therapy | — | — | International Organization for Standardization, Joint Commission International | |
| #7 | 4.4 / 5 (32 reviews) | Istanbul, Turkey | 10+ years | Gastroectomy, Autologous bone marrow transplantation | — | — | 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 | Thyroidectomy, Brain tumor removal | — | — | Global Healthcare Accreditation Program, World's Best Hospitals 2021 by Newsweek | |
| #9 | 4.5 / 5 (7 reviews) | Seoul, Republic of Korea | — | 65,000+ treatments | Hysterectomy (uterus removal), Pancreatic cancer surgery | — | — | International Organization for Standardization, Korean Institute for Healthcare Accreditation | |
| #10 | 4.0 / 5 (3 reviews) | Seoul, Republic of Korea | — | — | Stereotaxic radiosurgery, Laparoscopic nephrectomy | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation |