| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (213 reviews) | Istanbul, Turkey | 22+ years | Open heart surgery, Coronary bypass surgery | — | — | Joint Commission International , Turkish Medical Association (Türk Tabıplerı Bırliği) | ||
| #2 | 4.9 / 5 (45 reviews) | Milan, Italy | — | 8,000+ treatments | Coronary angiography, Coronary angioplasty | — | — | Scientific Institute for Research and Healthcare Accrediatation, World's Best Hospitals 2021 by Newsweek | |
| #3 | 4.6 / 5 (126 reviews) | Antalya , Turkey | — | — | Coronary angioplasty | — | — | Joint Commission International | |
| #4 | 4.6 / 5 (514 reviews) | Istanbul, Turkey | — | — | Open heart surgery, Radiofrequency ablation | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | |
| #5 | 4.7 / 5 (7 reviews) | Hamburg, Germany | — | — | Heart MRI | — | — | International Organization for Standardization, CERTKOM certificate for qualified pain therapy | |
| #6 | 4.0 / 5 (1 review) | Hamburg, Germany | — | — | Heart MRI | — | — | World's Best Hospitals 2021 by Newsweek | |
| #7 | 4.7 / 5 (441 reviews) | Barcelona, Spain | — | 23,000+ treatments | Radiofrequency ablation, Atrial septal defect surgery | — | — | Joint Commission International , European Foundation for Quality Management | |
| #8 | 4.2 / 5 (74 reviews) | Jelenia Góra, Poland | — | — | Radiofrequency ablation with 3D mapping, Coronary angiography | — | — | International Organization for Standardization, Polish Association of Medical Tourism | |
| #9 | 4.7 / 5 (154 reviews) | Vienna, Austria | — | — | Heart MRI | — | — | International Organization for Standardization, World's Best Hospitals 2021 by Newsweek | |
| #10 | 4.7 / 5 (132 reviews) | Istanbul, Turkey | — | — | Coronary angiography, Plastic surgery for cardiac valve | — | — | International Organization for Standardization, Joint Commission International |