Physician Profile
William Castro, M.D.
Unclaimed ProfileAbout Dr. Castro
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Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (714) 500-0228
- Email not available
Practice Locations
8041 NEWMAN AVE
Huntington Beach, CA 92647
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other family doctors at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 7 related providers in 1 group
Common questions
What does Dr. Castro specialize in?
Dr. Castro is a family doctor in Huntington Beach, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Family Medicine”.
NPI registry
Where is Dr. Castro located?
Dr. Castro is listed at 8041 NEWMAN AVE, Huntington Beach, CA 92647. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Castro's phone number?
The number on file is (714) 500-0228. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Castro's NPI number?
Dr. Castro's National Provider Identifier is 1366607848. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Dr. Castro been practicing?
Dr. Castro has 18+ years experience. Registered with an NPI since 2008. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. Castro confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Castro. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.