Provider Profile
Arthur Gallagher, PsyD
Unclaimed ProfileAbout Dr. Gallagher
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Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (631) 621-2744
- Email not available
Practice Locations
PO BOX 51
Stony Brook, NY 11790
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.
Other psychologists in Stony Brook 8
Same specialty, same city.
Common questions
What does Dr. Gallagher specialize in?
Dr. Gallagher is a psychologist in Stony Brook, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Psychologist — Clinical”.
NPI registry
Where is Dr. Gallagher located?
Dr. Gallagher is listed at PO BOX 51, Stony Brook, NY 11790. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Gallagher's phone number?
The number on file is (631) 621-2744. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Gallagher's NPI number?
Dr. Gallagher's National Provider Identifier is 1871397604. 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 Dr. Gallagher been practicing?
Dr. Gallagher 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 Dr. Gallagher confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gallagher. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.