| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (175) | Vienna, Austria | — | — | Installing heart pacemaker | — | Center for Cardiovascular Diseases integrates robotics for surgical planning. Cardiologists include a top 3% world scientist from Stanford list. ISO 9001 certified. | World's Best Hospitals 2021 by Newsweek, International Organization for Standardization |