| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (154 reviews) | Vienna, Austria | 44+ years | CyberKnife, Gamma Knife, craniotomy | Complex brain cancer cases | Specializes in advanced brain cancer treatments like CyberKnife and Gamma Knife. Achieves positive treatment results in 95% of cases. Led by Prof. Christoph Zielinski, a renowned oncologist with over 600 published papers. | International Organization for Standardization, World's Best Hospitals 2021 by Newsweek | ||
| #2 | 3.8 / 5 (8 reviews) | Vienna, Austria | — | — | — | — | — | — | |
| #3 | 4.5 / 5 (19 reviews) | Vienna, Austria | — | — | — | — | — | International Organization for Standardization | |
| #4 | 3.9 / 5 (0 reviews) | Vienna, Austria | — | — | — | — | — | — |