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Edit this profileAt a glance
- 901 Boren Ave Ste 900, Seattle, WA 98104
About Sydney Castle
Sydney Castle is a social worker practicing in Seattle, WA. This provider record is associated with NPI 1477439594.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Contact Information
- (206) 257-3199
- Email not available
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Practice Locations
901 BOREN AVE STE 900
Seattle, WA 98104
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
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 Sydney Castle?
Sydney Castle is a social worker in Seattle, WA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Sydney Castle's address?
Sydney Castle is listed at 901 Boren Ave Ste 900, Seattle, WA 98104. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Sydney Castle?
The number on file is (206) 257-3199. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Sydney Castle's NPI number?
Sydney Castle's National Provider Identifier is 1477439594. 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 Sydney Castle been practicing?
Sydney Castle has 1+ years experience. Registered with an NPI since 2025. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Sydney Castle confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Sydney Castle. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.