| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 3.8 / 5 (6) | Madrid, Spain | — | — | Gastric bypass | — | — | World's Best Hospitals 2021 by Newsweek | |
| #2 | 5.0 / 5 (2) | Madrid, Spain | — | — | Gastric bypass | — | — | Joint Commission International , International Organization for Standardization | |
| #3 | 4.7 / 5 (17) | Madrid, Spain | — | 26,000+ treatments | Gastric bypass | — | — | European Foundation for Quality Management, TÜV AG Сompany Research & Investing Certificate | |
| #4 | 4.7 / 5 | Madrid, Spain | — | — | Laparoscopic surgery, robotic-assisted surgery with da Vinci 5 | Revision after failed sleeve gastrectomy | Specializes in revision sleeve-to-gastric bypass for reflux, using da Vinci 5 for precision. Includes a full year of follow-up care. | — |