| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (441 reviews) | Barcelona, Spain | 39+ years1,000+ treatments | Radiotherapy for prostate cancer, CyberKnife for brain tumor | — | — | Joint Commission International , European Foundation for Quality Management | ||
| #2 | 4.8 / 5 (174 reviews) | Istanbul, Turkey | — | — | Thyroidectomy, Radiofrequency ablation | — | — | Certification according to DIN EN ISO 9001 by TÜV NORD CERT, Joint Commission International | |
| #3 | 4.6 / 5 (514 reviews) | Istanbul, Turkey | 23+ years | Operation Marmara (microsurgical subinguinal varicocelectomy), Radiotherapy for lung cancer | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | ||
| #4 | 4.6 / 5 (130 reviews) | Hamburg, Germany | — | Radiotherapy for throat cancer, Lung cancer surgery | — | — | International Organization for Standardization, Medical Travel Quality Alliance | ||
| #5 | 4.0 / 5 (1 review) | Hamburg, Germany | — | — | Chemotherapy, Radiotherapy for prostate cancer | — | — | World's Best Hospitals 2021 by Newsweek | |
| #6 | 4.5 / 5 (52 reviews) | Frankfurt am Main, Germany | — | — | Lung cancer surgery, CyberKnife for brain tumor | — | — | TÜV AG Сompany Research & Investing Certificate, TOP German hospital according to 2019 Focus ranking | |
| #7 | 4.6 / 5 (17 reviews) | Guangzhou, China | — | — | Chemoembolization of the liver, Immunotherapy | — | — | — | |
| #8 | 4.4 / 5 (13 reviews) | Tel Aviv, Israel | — | 92,000+ treatments | Radiotherapy for cervical cancer, Wide excision of melanoma | — | — | Joint Commission International | |
| #9 | 4.3 / 5 (18 reviews) | Istanbul, Turkey | 2011+ years | SIRT therapy, Colectomy (large bowel resection) | — | — | Best clinic for radiotherapy, Best price for PET/CT | ||
| #10 | 5.0 / 5 (2 reviews) | Haifa, Israel | — | — | Throat cancer operation, Mohs microsurgery | — | — | Joint Commission International , World's Best Hospitals 2021 by Newsweek |