| 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 (127 reviews) | Antalya , Turkey | — | — | Heart Valve Replacement, Coronary angioplasty | — | — | Joint Commission International | |
| #3 | 4.7 / 5 (359 reviews) | Istanbul, Turkey | — | — | Coronary angiography, Pediatric Mitral Valve Replacement | — | — | International Organization for Standardization, Joint Commission International | |
| #4 | 4.6 / 5 (514 reviews) | Istanbul, Turkey | 14+ years | Heart Valve Replacement, Aortic aneurysm 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 | 4.6 / 5 (214 reviews) | Istanbul, Turkey | 28+ years | Replacement of the aortic valve, Transcatheter aortic valve implantation (TAVI) | — | — | Joint Commission International , Turkish Medical Association (Türk Tabıplerı Bırliği) | ||
| #8 | 4.7 / 5 (441 reviews) | Barcelona, Spain | — | 23,000+ treatments | Coronary stenting, Installing heart pacemaker | — | — | Joint Commission International , European Foundation for Quality Management | |
| #9 | 4.5 / 5 (51 reviews) | Istanbul, Turkey | — | — | Installing heart pacemaker, Open heart surgery | — | — | Joint Commission International | |
| #10 | 4.6 / 5 (473 reviews) | Istanbul, Turkey | 30+ years | Heart Valve Replacement, Coronary stenting | — | — | Joint Commission International , Patient choice in Pediatric Oncology & Hematology Oncology |