Provider Profile
William Riordan, P.A.
Unclaimed ProfileAbout William Riordan
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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
- (516) 338-5300
- Email not available
Practice Locations
100 PORT WASHINGTON BLVD
Roslyn, NY 11576
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 physician assistants at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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.
Common questions
What does William Riordan specialize in?
William Riordan is a physician assistant in Roslyn, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is William Riordan located?
William Riordan is listed at 100 Port Washington Blvd, Roslyn, NY 11576. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is William Riordan's phone number?
The number on file is (516) 338-5300. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for William Riordan?
William Riordan's National Provider Identifier is 1871628487. 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 Riordan have?
William Riordan has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is William Riordan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by William Riordan. 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.