ISAAC KLEIN
NPI 1891686366
Social Worker in New York, NY

Q: What is Isaac Klein's NPI number?

The NPI number for Isaac Klein is 1891686366. It was assigned to this individual provider in the NPPES registry on July 14, 2025.

Q: What is Isaac Klein's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Q: When was this NPI record last updated?

The NPPES record for Isaac Klein was last updated on July 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 14, 2025

465 GRAND ST, NEW YORK, NY 10002(212) 240-1970 Get Directions Write a Review

NPPES record last updated: July 14, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Isaac Klein NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ISAAC KLEIN (NPI 1891686366) is an individual social worker in New York, New York and active in the NPI registry since July 2025.

NPPES Registry Identity

NPI1891686366

Entity TypeIndividualMale

Primary Taxonomy104100000X

Provider Legal NameISAAC KLEIN

Location Address465 GRAND STNew York, NY 10002-7477

Mailing Address465 Grand StNew York, NY 10002-7477

Phone(212) 240-1970

Sole ProprietorNo

Enumeration DateJuly 14, 2025

NPPES CertifiedJuly 13, 2025

✔ NPI 1891686366 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers

Taxonomy Code104100000X

Definition

A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

465 GRAND ST, New York, NY 10002

Open in Google Maps ↗

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TARA LYNETTE WHITMORE

Developmental Therapist

465 GRAND ST
NEW YORK, NY 10002

New York County (212) 420-1999

CHLOE CHAN

Case Manager/Care Coordinator

465 GRAND ST
NEW YORK, NY 10002

New York County (212) 420-1999

YOCHEBET LEVI LARA

Case Manager/Care Coordinator

465 GRAND ST
NEW YORK, NY 10002

New York County (347) 207-5986

SHULEM STERNHILL MSW

Social Worker

465 GRAND ST
NEW YORK, NY 10002

New York County (212) 420-1970

MIO UEDA

Psychologist

465 GRAND ST
NEW YORK, NY 10002

New York County (212) 420-1999

RENDALYN TAN

Physical Therapist

465 GRAND ST
NEW YORK, NY 10002

New York County (917) 780-7118

MISS ASHLEY KO

Case Manager/Care Coordinator

465 GRAND ST, 2ND FL
NEW YORK, NY 10002

New York County (212) 420-1999

RICHARD DIVIS

Counselor (School)

465 GRAND ST
NEW YORK, NY 10002

New York County (212) 420-1999

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Isaac Klein's NPI number?

The NPI number for Isaac Klein is 1891686366. It was assigned to this individual provider in the NPPES registry on July 14, 2025.

Where is Isaac Klein located?

Isaac Klein practices at 465 Grand St, New York, NY 10002. The listed phone number is (212) 240-1970.

What is Isaac Klein's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Isaac Klein was last updated on July 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.