| #1 | | | Barcelona, Spain | | 41+ years23,000+ treatments | Nephrectomy, kidney-sparing surgery | Complex kidney removal cases | JCI-accredited center with leading urologists performing 1,100+ nephrectomy procedures. Offers both traditional and kidney-sparing techniques using da Vinci robotic system. | Joint Commission International , European Foundation for Quality Management |
| #2 | | | Barcelona, Spain | | 38+ years | PET/CT, Gastroscopy with biopsy | — | — | Joint Commission International |
| #3 | | | Madrid, Spain | | 19+ years | Kidney-sparing surgery, da Vinci Surgical System | Kidney cancer patients seeking minimally invasive options | Performs nephrectomy with the da Vinci robot for less invasive surgery. Clinic specializes in urogenital system tumors and offers personalized treatment plans. | World's Best Hospitals 2021 by Newsweek |
| #4 | | | Barcelona, Spain | | 159+ years14,000+ treatments | Nephrectomy | — | — | Bookimed Award: Best pediatric hospital, World's Best Specialized Hospitals 2022 by Newsweek |
| #5 | | | Madrid, Spain | | 36+ years26,000+ treatments | Biopsy, Biochemical blood analysis | — | — | European Foundation for Quality Management, TÜV AG Сompany Research & Investing Certificate |
| #6 | | | Pamplona, Spain | | 64+ years | PET/CT | — | — | Joint Commission International , European Society for Medical Oncology |
| #7 | | | Barcelona, Spain | | 43+ years | Nephrectomy | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT |
| #8 | | | Alicante, Spain | | — | Nephrectomy, Biopsy Colposcopy | — | — | International Organization for Standardization |
| #9 | | | Alicante, Spain | | — | Nephrectomy, Angiography | — | — | International Organization for Standardization |