| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (442 reviews) | Barcelona, Spain | 54+ years1,000+ treatments | The Wertheim-Meigs operation, Thyroid function tests (including T3, T4, TSH) | — | — | Joint Commission International , European Foundation for Quality Management | ||
| #2 | 4.5 / 5 (0 reviews) | Madrid, Spain | — | — | The Wertheim-Meigs operation | — | — | Joint Commission International , International Organization for Standardization | |
| #3 | 5.0 / 5 (6 reviews) | Pamplona, Spain | — | — | Consultation with an oncologist, Online Consultation with Oncologist | — | — | Joint Commission International , European Society for Medical Oncology |