| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (440 reviews) | Barcelona, Spain | 35+ years23,000+ treatments | Surgical correction, ventricular septal defect closure, RVOT obstruction relief | Complex congenital heart cases | Dr. Raul Abella specializes in Tetralogy of Fallot with a 98.2% postoperative survival rate. Clinic holds JCI accreditation and offers personalized care. | Joint Commission International , European Foundation for Quality Management | ||
| #2 | 4.8 / 5 (41 reviews) | Barcelona, Spain | — | 14,000+ treatments | — | — | — | Bookimed Award: Best pediatric hospital, World's Best Specialized Hospitals 2022 by Newsweek | |
| #3 | 4.4 / 5 (6 reviews) | Barcelona, Spain | 38+ years | — | — | — | Joint Commission International | ||
| #4 | 5.0 / 5 (6 reviews) | Pamplona, Spain | — | — | Tetralogy of Fallot repairs, cardiac surgery | Congenital heart conditions | JCI-accredited cardiac surgery center with expertise in Tetralogy of Fallot repairs. Ranked as Spain's top private hospital. | Joint Commission International , European Society for Medical Oncology | |
| #5 | 4.6 / 5 (16 reviews) | Madrid, Spain | — | 26,000+ treatments | — | — | — | European Foundation for Quality Management, TÜV AG Сompany Research & Investing Certificate |