| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (359 reviews) | Istanbul, Turkey | 21+ years | Sclerotherapy of varicose veins, Coronary angiography | — | — | International Organization for Standardization, Joint Commission International | ||
| #2 | 4.6 / 5 (473 reviews) | Istanbul, Turkey | — | — | Interventricular septal defect surgery | — | — | Joint Commission International , Patient choice in Pediatric Oncology & Hematology Oncology | |
| #3 | 5.0 / 5 (3 reviews) | Bucharest, Romania | — | — | Carotid Angioplasty and Stenting, Ventricular Septal Defect Surgery | — | — | Bariatric Surgery Center of Excellence, Joint Commission International | |
| #4 | 4.6 / 5 (214 reviews) | Istanbul, Turkey | 19+ years | Radiofrequency ablation, Plastic surgery for cardiac valve | — | — | Joint Commission International , Turkish Medical Association (Türk Tabıplerı Bırliği) | ||
| #5 | 4.3 / 5 (16 reviews) | Hamburg, Germany | — | — | Radiofrequency ablation | — | — | International Organization for Standardization, Medical Travel Quality Alliance | |
| #6 | 4.7 / 5 (7 reviews) | Hamburg, Germany | — | — | CT coronary angiography | — | — | International Organization for Standardization, CERTKOM certificate for qualified pain therapy | |
| #7 | 4.0 / 5 (1 review) | Hamburg, Germany | — | — | CT coronary angiography | — | — | World's Best Hospitals 2021 by Newsweek | |
| #8 | 4.6 / 5 (514 reviews) | Istanbul, Turkey | — | — | Operation Marmara (microsurgical subinguinal varicocelectomy), Radiofrequency ablation | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | |
| #9 | 4.7 / 5 (441 reviews) | Barcelona, Spain | — | 23,000+ treatments | Open heart surgery, Sclerotherapy of varicose veins | — | — | Joint Commission International , European Foundation for Quality Management | |
| #10 | 4.8 / 5 (180 reviews) | Istanbul, Turkey | — | — | Radiofrequency ablation, Varicose Vein Stripping | — | — | Certification according to DIN EN ISO 9001 by TÜV NORD CERT, Joint Commission International |