| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (174) | Vienna, Austria | 48+ years | Brachytherapy, CyberKnife, Immunotherapy with Keytruda (Pembolizumab) | Personalized oncology treatment | Offers targeted therapy, immunotherapy, and radiotherapy with 95% positive treatment results. Features top oncologists like Prof. Christoph Zielinski. | World's Best Hospitals 2021 by Newsweek, International Organization for Standardization | ||
| #2 | 3.8 / 5 (8) | Vienna, Austria | — | — | Сomplex oncology diagnostic | — | — | — | |
| #3 | 4.5 / 5 (19) | Vienna, Austria | — | — | Brachytherapy, CyberKnife, immunotherapy with Keytruda (Pembrolizumab) | Personalized cancer therapy | Offers targeted therapies including immunotherapy, with treatments tailored to individual tumor genetics. Part of Vienna Cancer Center, treating 30,000+ patients. | International Organization for Standardization, World's Best Hospitals 2026 by Newsweek | |
| #4 | 4.6 / 5 | Vienna, Austria | 26+ years | Radiotherapy for lung cancer, PET/CT | — | — | World's Best Hospitals 2026 by Newsweek | ||
| #5 | 4.2 / 5 (21) | Vienna, Austria | — | — | — | — | — | International Organization for Standardization | |
| #6 | 3.9 / 5 | Vienna, Austria | — | — | — | — | — | ISO 9001:2015 Quality management systems, International Organization for Standardization |