| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (44 reviews) | Barcelona, Spain | — | 14,000+ treatments | Consultation with an oncologist, Online Consultation with Oncologist | — | — | Bookimed Award: Best pediatric hospital, World's Best Specialized Hospitals 2022 by Newsweek | |
| #2 | 5.0 / 5 (1 review) | Madrid, Spain | — | — | Complex treatment of neuroblastoma | — | — | Joint Commission International , International Organization for Standardization |