Provider Profile
Regina Castillo
Unclaimed ProfileAbout Regina Castillo
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Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Contact Information
- (805) 777-3500
- Email not available
Practice Locations
125 W THOUSAND OAKS BLVD STE 500
Thousand Oaks, CA 91360
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 registered nurses at this location 2
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 kind of doctor is Regina Castillo?
Regina Castillo is a registered nurse in Thousand Oaks, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Regina Castillo's address?
Regina Castillo is listed at 125 W Thousand Oaks Blvd Ste 500, Thousand Oaks, CA 91360. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Regina Castillo?
The number on file is (805) 777-3500. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Regina Castillo's NPI number?
Regina Castillo's National Provider Identifier is 1043038664. 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 Regina Castillo been practicing?
Regina Castillo has 2+ years experience. Registered with an NPI since 2024. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Regina Castillo confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Regina 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.