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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SAMSON WALLERSTEIN MS
NPI 1215519509
Counselor - Mental Health in New York, NY

Active since April 26, 2021
100 PARK AVE RM 1600, NEW YORK, NY 10017(347) 229-6356 Get Directions Write a Review

NPPES record last updated: August 6, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 6, 2026, Apr 26, 2021 (2 updates tracked since 2021).

About Samson Wallerstein Ms NPPES

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

SAMSON WALLERSTEIN MS (NPI 1215519509) is an individual mental health provider in New York, New York, licensed in New York (P144504) and active in the NPI registry since April 2021.

NPPES Registry Identity

NPI1215519509
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameSAMSON WALLERSTEINCredential: MS
Location Address100 PARK AVE RM 1600New York, NY 10017-5538
Mailing Address100 Park Ave Rm 1600New York, NY 10017-5538 · (347) 229-6356
Phone(347) 229-6356
Sole ProprietorNo
Enumeration DateApril 26, 2021
Last NPPES UpdateAugust 6, 20262 updates tracked since enumeration
NPPES CertifiedAugust 6, 2026
✔ NPI 1215519509 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in NY · P144504
100 PARK AVE RM 1600, New York, NY 10017
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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.

PALLAVI ROHATGI
Counselor (Mental Health)
100 PARK AVE RM 1600
NEW YORK, NY 10017
New York County (347) 229-6356
ANNA VIRK
Counselor (Mental Health)
100 PARK AVE RM 1600
NEW YORK, NY 10017
New York County (347) 229-6356
DANIEL O'NEILL
Counselor (Mental Health)
100 PARK AVE RM 1600
NEW YORK, NY 10017
New York County (845) 490-0725
GRACE CHRISTINA REEVES
Counselor (Mental Health)
100 PARK AVE RM 1600
NEW YORK, NY 10017
New York County (347) 229-6356
ARIANNA C ZARRO
Counselor (Mental Health)
100 PARK AVE RM 1600
NEW YORK, NY 10017
New York County (247) 229-6356
JENNIFER LEUNG MHC-LP
Counselor (Mental Health)
100 PARK AVE RM 1600
NEW YORK, NY 10017
New York County (347) 229-6356
ISABELLA QADIRA PETTUS MHC-LP
Counselor (Mental Health)
100 PARK AVE RM 1600
NEW YORK, NY 10017
New York County (347) 229-6356
CASEY OLEJAR MHC-LP
Counselor (Mental Health)
100 PARK AVE RM 1600
NEW YORK, NY 10017
New York County (347) 229-6356

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 Samson Wallerstein's NPI number?

The NPI number for Samson Wallerstein is 1215519509. It was assigned to this individual provider in the NPPES registry on April 26, 2021.

Where is Samson Wallerstein located?

Samson Wallerstein practices at 100 Park Ave Rm 1600, New York, NY 10017. The listed phone number is (347) 229-6356.

What is Samson Wallerstein's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Samson Wallerstein was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 days 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.