| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 5.0 / 5 (3) | Madrid, Spain | — | — | Gamma Knife for brain tumor | — | — | Joint Commission International , International Organization for Standardization | |
| #2 | 2.5 / 5 | Madrid, Spain | 27+ years | Cancer screening | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT | ||
| #3 | 4.9 / 5 | Madrid, Spain | — | Cancer screening | — | — | European Society of Human Reproduction and Embryology, Fellow, American College of Surgeons |