2 NPI-registered Radiation Oncology Physician providers practice in Guam. See all states.
| Provider | Specialty | Location | NPI |
|---|---|---|---|
| Ari KaterelosM.D. | Radiation Oncology Physician | Tamuning, GU | 1861607418 |
| Island Cancer Center Corporation | Radiation Oncology Physician | Tamuning, GU | 1891665352 |
Source: CMS NPPES Data Dissemination (June 2026). Specialty taxonomy: NUCC.
