| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 5.0 / 5 | Madrid, Spain | — | — | Hyperthermic Intraperitoneal Chemotherapy (HIPEC) | — | — | ISO 45001 (Occupational Health and Safety Management), World's Best Smart Hospitals 2023 by Newsweek | |
| #2 | 3.8 / 5 (6) | Madrid, Spain | — | Brain MRI, MRI of the spine cord | — | — | World's Best Hospitals 2021 by Newsweek | ||
| #3 | 5.0 / 5 (3) | Madrid, Spain | — | — | Consultation with an oncologist, PET/CT | — | — | Joint Commission International , International Organization for Standardization | |
| #4 | 4.9 / 5 | Madrid, Spain | — | Hyperthermic Intraperitoneal Chemotherapy (HIPEC) | Rare peritoneal cancers (mesothelioma, pseudomyxoma) | Dedicated Peritoneal Carcinomatosis Unit combining cytoreductive surgery with heated intraperitoneal chemotherapy. JCI-accredited hospital with specialist surgeons in advanced peritoneal oncology. | European Society of Human Reproduction and Embryology, Fellow, American College of Surgeons |