| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (438 reviews) | Barcelona, Spain | — | 23,000+ treatments | Consultation immunologist | — | — | Joint Commission International , European Foundation for Quality Management | |
| #2 | 2.5 / 5 (0 reviews) | Madrid, Spain | — | — | Consultation immunologist | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT |