Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Healthcare providers in Rancho Cucamonga, CA

5,855 active providers in Rancho Cucamonga, California — 4,678 individual practitioners and 1,177 organizations.

By provider type

By specialty in Rancho Cucamonga

All providers in Rancho Cucamonga

Nearby cities in California