Provider Profile
Sydney Mastorides, LMSW
Unclaimed ProfileAbout Sydney Mastorides
Sydney Mastorides, LMSW is a clinical social worker based in West Islip, NY. Sydney is also listed as specializing in social worker.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
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
- (516) 512-2409
- Email not available
Practice Locations
467A HIGBIE LN
West Islip, NY 11795
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 2
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 Sydney Mastorides's specialty?
Sydney Mastorides is a clinical social worker in West Islip, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Sydney Mastorides?
Sydney Mastorides is listed at 467A Higbie Ln, West Islip, NY 11795. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Sydney Mastorides?
The number on file is (516) 512-2409. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Sydney Mastorides?
Sydney Mastorides's National Provider Identifier is 1700694411. 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 Sydney Mastorides have?
Sydney Mastorides 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
Is Sydney Mastorides's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Sydney Mastorides. 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.