| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 3.8 / 5 (6) | Madrid, Spain | — | Consultation with a neurosurgeon, Consultation with an ophthalmologist | — | — | World's Best Hospitals 2021 by Newsweek | ||
| #2 | 5.0 / 5 (3) | Madrid, Spain | — | — | Consultation with an oncologist, PET/CT | — | — | Joint Commission International , International Organization for Standardization | |
| #3 | 4.0 / 5 | Madrid, Spain | — | — | Brain tumor removal, Consultation with a neurosurgeon | — | — | — | |
| #4 | 4.9 / 5 | Madrid, Spain | — | — | Brain tumor removal | Awake surgery for tumors near speech or motor areas | Awake brain surgery with cortical mapping preserves speech and mobility during tumor removal. JCI-accredited hospital with dedicated Functional and Awake Patient Oncology Surgery Unit. | European Society of Human Reproduction and Embryology, Fellow, American College of Surgeons |