| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.5 / 5 (23) | Seoul, Republic of Korea | 45,000+ treatments | Chemotherapy for lung cancer, Da Vinci Robotic System | — | — | International Organization for Standardization, Korean Institute for Healthcare Accreditation | ||
| #2 | 5.0 / 5 (9) | Seoul, Republic of Korea | — | Biopsy, PET/CT | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | ||
| #3 | 4.8 / 5 (6) | Seoul, Republic of Korea | 30+ years32,000+ treatments | Lung cancer surgery, Lobectomy | — | — | Global Healthcare Accreditation Program, World's Best Hospitals 2021 by Newsweek | ||
| #4 | 4.8 / 5 (5) | Incheon, Republic of Korea | — | — | CT (computer tomography), Extended analysis of blood | — | — | World's Best Hospitals 2021 by Newsweek | |
| #5 | 4.5 / 5 (7) | Seoul, Republic of Korea | 65,000+ treatments | Pneumonectomy, Lobectomy | — | — | International Organization for Standardization, Korean Institute for Healthcare Accreditation | ||
| #6 | 3.5 / 5 (4) | Seoul, Republic of Korea | — | Pneumonectomy, Stereotaxic radiosurgery | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | ||
| #7 | 4.5 / 5 (43) | Seoul, Republic of Korea | — | CyberKnife, Lung cancer surgery | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | ||
| #8 | 5.0 / 5 (2) | Seoul, Republic of Korea | — | — | Lung cancer surgery, Chemotherapy for lung cancer | — | — | World's Best Hospitals 2021 by Newsweek | |
| #9 | 5.0 / 5 (1) | Seoul, Republic of Korea | — | — | Brachytherapy, CyberKnife, chemotherapy, radiotherapy | Precision radiation therapy | Offers advanced CyberKnife and brachytherapy for lung cancer. Listed among 'Best clinics of the world 2021' by Newsweek. High-tech IT system minimizes treatment errors. | World's Best Hospitals 2021 by Newsweek, World's Best Smart Hospitals 2021 by Newsweek | |
| #10 | 3.6 / 5 | Seoul, Republic of Korea | 23+ years | PET/CT, CT of the chest | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation |