1 NPI-registered providers practice in Castro Vallye, California. Pick another city in the rail, or open the full search to filter by specialty and credential.
| Provider | Specialty | Location | NPI |
|---|---|---|---|
| James FazzioR.D. | Registered Dietitian | Castro Vallye, CA | 1235672494 |
Source: CMS NPPES Data Dissemination (June 2026).
