| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (420) | Istanbul, Turkey | 29+ years | Consultation with an otolaryngologist, CT of the mandible | — | — | International Organization for Standardization, Joint Commission International | ||
| #2 | 4.2 / 5 | Warsaw, Poland | 47+ years | Endoscopic Sinus Surgery, CT of the mandible | — | — | — | ||
| #3 | 5.0 / 5 (4) | Istanbul, Turkey | — | — | Endoscopic Sinus Surgery | — | — | Turkish Medical Association | |
| #4 | 4.6 / 5 (537) | Istanbul, Turkey | 36+ years | Audiometry, Hearing check-up | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | ||
| #5 | 5.0 / 5 (2) | Madrid, Spain | — | — | Endoscopic Sinus Surgery | — | — | Joint Commission International , International Organization for Standardization | |
| #6 | 2.6 / 5 | Dusseldorf, Germany | — | — | Endoscopic Sinus Surgery | — | — | International Accreditation System for Interventional Oncology Services (IASIOS), German Cancer Society | |
| #7 | — / 5 | Incheon, Republic of Korea | — | — | Endoscopic Sinus Surgery | — | — | Advanced Regenerative Medicine Implementation Institution (Ministry of Health and Welfare, Republic of Korea), Korean Institute for Healthcare Accreditation | |
| #8 | — / 5 | Baku, Azerbaijan | — | — | Endoscopic Sinus Surgery | — | — | — | |
| #9 | 3.5 / 5 | Baku, Azerbaijan | — | — | Endoscopic Sinus Surgery | — | — | — | |
| #10 | 3.8 / 5 | Ivano-Frankivsk, Ukraine | — | — | Endoscopic Sinus Surgery | — | — | — |