| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.8 / 5 (5 reviews) | Bangkok, Thailand | — | — | Coronary angiography | — | — | International Organization for Standardization | |
| #2 | 4.6 / 5 (364 reviews) | Istanbul, Turkey | — | — | Coronary stenting, Diagnostic laparoscopy | — | — | International Organization for Standardization, Joint Commission International | |
| #3 | 4.6 / 5 (129 reviews) | Antalya , Turkey | — | — | Heart Valve Replacement, Coronary angioplasty | — | — | Joint Commission International | |
| #4 | 4.6 / 5 (517 reviews) | Istanbul, Turkey | 14+ years | Radiofrequency ablation, Open heart surgery | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | ||
| #5 | 4.7 / 5 (7 reviews) | Hamburg, Germany | — | — | Coronary stenting | — | — | International Organization for Standardization, CERTKOM certificate for qualified pain therapy | |
| #6 | 4.0 / 5 (1 review) | Hamburg, Germany | — | — | Coronary angiography | — | — | World's Best Hospitals 2021 by Newsweek | |
| #7 | 4.7 / 5 (143 reviews) | Vilnius, Lithuania | — | — | Aortic aneurysm surgery, Installing heart pacemaker | — | — | Joint Commission International | |
| #8 | 4.6 / 5 (220 reviews) | Istanbul, Turkey | 28+ years | Transcatheter aortic valve implantation (TAVI), Radiofrequency ablation | — | — | Joint Commission International , Turkish Medical Association (Türk Tabıplerı Bırliği) | ||
| #9 | 4.6 / 5 (52 reviews) | Istanbul, Turkey | — | — | Coronary artery bypass grafting, Replacement of the aortic valve | — | — | Joint Commission International | |
| #10 | 4.7 / 5 (441 reviews) | Barcelona, Spain | — | 23,000+ treatments | Replacement of the aortic valve, Tetralogy of Fallot Surgery | — | — | Joint Commission International , European Foundation for Quality Management |