HealthcareDiscovery.AI / Doctors / California / Castro Valley

Doctors in Castro Valley, California

Data updated monthly · Last refresh September 2026

289 licensed providers practice in Castro Valley across 45 specialties, and 24% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

289providers
45specialties
24%with industry payments

Specialties in Castro Valley

Common questions

How many doctors practice in Castro Valley, California?

289 licensed providers with active NPI records list a practice address in Castro Valley, according to federal NPPES data refreshed monthly.

How many doctors in Castro Valley received drug or device company payments?

68 of 289 providers in Castro Valley (24%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Other cities in California

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Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.