Provider Profile
Isaac Klein
Unclaimed ProfileAbout Isaac Klein
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Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (212) 240-1970
- Email not available
Practice Locations
465 GRAND ST
New York, NY 10002
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 social workers at this location 5
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 Dr. Klein's specialty?
Dr. Klein is a social worker in New York, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Social Worker”.
NPI registry
Where can I find Dr. Klein?
Dr. Klein is listed at 465 GRAND ST, New York, NY 10002. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Klein?
The number on file is (212) 240-1970. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Klein's NPI number?
Dr. Klein's National Provider Identifier is 1891686366. 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. Klein been practicing?
Dr. Klein 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. Klein confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Klein. 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.