Provider Profile
William C. Castillo
Unclaimed ProfileAbout William Castillo
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Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (949) 833-2237
- Email not available
Practice Locations
16782 VON KARMAN AVE STE 11
Irvine, CA 92606
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 providers at this location 8
Same specialty, same street address — most likely the same department or group.
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.
Common questions
What is William C. Castillo's address?
William C. Castillo is listed at 16782 Von Karman Ave Ste 11, Irvine, CA 92606. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with William C. Castillo?
The number on file is (949) 833-2237. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for William C. Castillo?
William C. Castillo's National Provider Identifier is 1366902785. 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 much experience does William C. Castillo have?
William C. Castillo has 7+ years experience. Registered with an NPI since 2019. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is William C. Castillo's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by William C. Castillo. 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.