Provider Profile
Nancy Chiao-Castle
Unclaimed ProfileAbout Nancy Chiao-Castle
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Education & Training
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.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (650) 573-2222
- Email not available
Practice Locations
222 W 39TH AVE
San Mateo, CA 94403
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 nurse practitioners at this location 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 6
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 — 20 related providers in 3 groups
Other nurse practitioners in San Mateo 4
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1999 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Nancy Chiao-Castle?
Nancy Chiao-Castle is a nurse practitioner in San Mateo, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Nancy Chiao-Castle's address?
Nancy Chiao-Castle is listed at 222 W 39Th Ave, San Mateo, CA 94403. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Nancy Chiao-Castle?
The number on file is (650) 573-2222. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Nancy Chiao-Castle's NPI number?
Nancy Chiao-Castle's National Provider Identifier is 1578619052. 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
Where did Nancy Chiao-Castle train?
Nancy Chiao-Castle attended Other, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How long has Nancy Chiao-Castle been practicing?
Nancy Chiao-Castle has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
Has Nancy Chiao-Castle confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Nancy Chiao-Castle. 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.