| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (496) | Barcelona, Spain | — | 23,000+ treatments | Metabolic surgery, Radioiodine therapy | — | — | Joint Commission International , European Foundation for Quality Management | |
| #2 | 4.7 / 5 (159) | Vilnius, Lithuania | 22+ years | Thyroidectomy, Consultation with an endocrinologist | — | — | Joint Commission International | ||
| #3 | 4.6 / 5 (436) | Istanbul, Turkey | — | — | Radioiodine therapy, Diabetes mellitus treatment with stem cells | — | — | International Organization for Standardization, Joint Commission International | |
| #4 | 4.6 / 5 (544) | Istanbul, Turkey | 32+ years | Thyroidectomy, Metabolic surgery | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | ||
| #5 | 4.5 / 5 (266) | Istanbul, Turkey | 27+ years | Metabolic surgery, Thyroidectomy | — | — | Joint Commission International , Turkish Medical Association (Türk Tabıplerı Bırliği) | ||
| #6 | 4.8 / 5 (298) | Istanbul, Turkey | — | — | Thyroidectomy, Metabolic surgery | — | — | Certification according to DIN EN ISO 9001 by TÜV NORD CERT, Joint Commission International | |
| #7 | 4.3 / 5 (9) | Alicante, Spain | — | — | Consultation with an endocrinologist | — | — | Joint Commission International | |
| #8 | 4.6 / 5 (151) | Antalya, Turkey | — | — | Thyroidectomy, Consultation with an endocrinologist | — | — | Joint Commission International | |
| #9 | 4.8 / 5 (55) | Milan, Italy | — | 8,000+ treatments | Consultation with an endocrinologist | — | — | Scientific Institute for Research and Healthcare Accrediatation, World's Best Hospitals 2021 by Newsweek | |
| #10 | 4.6 / 5 (175) | Vienna, Austria | 46+ years | Consultation with an endocrinologist | — | — | World's Best Hospitals 2021 by Newsweek, International Organization for Standardization |