| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 5.0 / 5 | Madrid, Spain | — | — | Stomach resection | — | — | ISO 45001 (Occupational Health and Safety Management), World's Best Smart Hospitals 2023 by Newsweek | |
| #2 | 3.8 / 5 (6) | Madrid, Spain | — | — | Gastric bypass, Stomach stapling | — | — | World's Best Hospitals 2021 by Newsweek | |
| #3 | 5.0 / 5 (3) | Madrid, Spain | — | — | Weight Loss Surgery | — | — | Joint Commission International , International Organization for Standardization | |
| #4 | 4.7 / 5 (17) | Madrid, Spain | — | 26,000+ treatments | Consultation and individualized treatment planning | Weight loss surgery patients | Part of a hospital group handling 75,000 inpatients annually. Recognized by Spanish Society of Health Informatics for healthcare innovations. | European Foundation for Quality Management, TÜV AG Сompany Research & Investing Certificate | |
| #5 | 2.5 / 5 | Madrid, Spain | — | — | Weight Loss Surgery | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT | |
| #6 | 2.8 / 5 | Madrid, Spain | — | — | Weight Loss Surgery | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT | |
| #7 | — / 5 | Madrid, Spain | — | — | Weight Loss Surgery | — | — | International Organization for Standardization, European Foundation for Quality Management | |
| #8 | 4.7 / 5 | Madrid, Spain | — | Weight Loss Surgery | — | — | — |