| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 3.8 / 5 (6) | Madrid, Spain | — | MRI of the spine cord, PET/CT | — | — | World's Best Hospitals 2021 by Newsweek | ||
| #2 | 5.0 / 5 (3) | Madrid, Spain | — | — | Brain MRI, Thyroid function tests (including T3, T4, TSH) | — | — | Joint Commission International , International Organization for Standardization | |
| #3 | 4.0 / 5 | Madrid, Spain | — | — | Chemotherapy for liver cancer, Consultation with a neurosurgeon | — | — | — |