Provider Profile
Declan Hennessy
Unclaimed ProfileAbout Declan Hennessy
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Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (212) 627-9600
- Email not available
Practice Locations
19 UNION SQ W 7TH FLOOR
New York, NY 10003
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 addiction & substance abuse counselors at this location 8
Same specialty, same street address — most likely the same department or group.
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 is Declan Hennessy's specialty?
Declan Hennessy is an addiction & substance abuse counselor in New York, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Declan Hennessy?
Declan Hennessy is listed at 19 Union Sq W 7Th Floor, New York, NY 10003. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Declan Hennessy?
The number on file is (212) 627-9600. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Declan Hennessy?
Declan Hennessy's National Provider Identifier is 1316246853. 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 Declan Hennessy have?
Declan Hennessy has 15+ years experience. Registered with an NPI since 2011. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Declan Hennessy's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Declan Hennessy. 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.