| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.0 / 5 | Seoul, Republic of Korea | — | — | Hysterectomy (uterus removal), Bone marrow transplantation | — | — | — | |
| #2 | 5.0 / 5 (9) | Seoul, Republic of Korea | — | — | Breast cancer surgery, Lumpectomy | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #3 | 4.9 / 5 (7) | Seoul, Republic of Korea | — | 32,000+ treatments | Lung cancer surgery, Colectomy (large bowel resection) | — | — | Global Healthcare Accreditation Program, World's Best Hospitals 2021 by Newsweek | |
| #4 | 4.8 / 5 (5) | Incheon, Republic of Korea | — | — | Hyperthermic Intraperitoneal Chemotherapy (HIPEC), Deep brain stimulation (DBS) surgery | — | — | World's Best Hospitals 2021 by Newsweek | |
| #5 | 4.5 / 5 (7) | Seoul, Republic of Korea | — | 65,000+ treatments | Trans-sphenoidal hypophysectomy (adenomectomy), Stereotaxic radiosurgery | — | — | International Organization for Standardization, Korean Institute for Healthcare Accreditation | |
| #6 | 3.5 / 5 (4) | Seoul, Republic of Korea | — | — | Cryodestruction, Trans-sphenoidal hypophysectomy (adenomectomy) | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #7 | 4.5 / 5 (43) | Seoul, Republic of Korea | — | — | Radiation therapy for brain tumor, Chemotherapy for liver cancer | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #8 | 5.0 / 5 (2) | Seoul, Republic of Korea | — | — | Radiotherapy, Lung cancer surgery | — | — | World's Best Hospitals 2021 by Newsweek | |
| #9 | 5.0 / 5 (1) | Seoul, Republic of Korea | — | — | Removal of liver cancer, Thyroidectomy | — | — | World's Best Hospitals 2021 by Newsweek, World's Best Smart Hospitals 2021 by Newsweek | |
| #10 | 3.6 / 5 | Seoul, Republic of Korea | — | — | Mastectomy, Rectal resection | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation |