| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (174) | Vienna, Austria | 44+ years | Brachytherapy, CyberKnife, targeted therapy, immunotherapy, chemotherapy, radiotherapy | Advanced adenocarcinoma with genetic profiling | Personalized treatment plans based on tumor genetics. Prof. Zielinski leads the oncology center with 1,100+ procedures. Clinic achieves 95% positive treatment outcomes. | World's Best Hospitals 2021 by Newsweek, International Organization for Standardization | ||
| #2 | 4.5 / 5 (19) | Vienna, Austria | — | — | — | — | — | International Organization for Standardization, World's Best Hospitals 2026 by Newsweek | |
| #3 | 4.6 / 5 | Vienna, Austria | — | — | Radiation therapy for colorectal cancer | — | — | World's Best Hospitals 2026 by Newsweek | |
| #4 | 4.2 / 5 (21) | Vienna, Austria | 32+ years | Gastroscopy | — | — | International Organization for Standardization | ||
| #5 | 3.9 / 5 | Vienna, Austria | — | — | — | — | — | ISO 9001:2015 Quality management systems, International Organization for Standardization |