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MS. LESLIE ANN ALTMARK M.A., LCSW-R
NPI 1689972564
Social Worker - Clinical in New York, NY

Active since March 02, 2011
41-51 EAST 11TH STREET, 4TH FLOOR, NEW YORK, NY 10003(212) 477-2600(212) 477-2040 Get Directions Write a Review

NPPES record last updated: March 2, 2011. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Ms. Leslie Ann Altmark M.a., Lcsw-r NPPES

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

MS. LESLIE ANN ALTMARK M.A., LCSW-R (NPI 1689972564) is an individual clinical provider in New York, New York, licensed in New York (R002992-1) and active in the NPI registry since March 2011.

NPPES Registry Identity

NPI1689972564
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. LESLIE ANN ALTMARKCredential: M.A., LCSW-R
Location Address41-51 EAST 11TH STREET, 4TH FLOORNew York, NY 10003
Mailing Address145 East 27th Street, # 4bNew York, NY 10016-9033
Phone(212) 477-2600
Fax(212) 477-2040
Sole ProprietorYes
Enumeration DateMarch 2, 2011
✔ NPI 1689972564 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in NY · R002992-1
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
41-51 EAST 11TH STREET, New York, NY 10003
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Other Providers at the Same Location NPPES 3

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

DR. GERARDO FONTAN JR. PHD
Psychologist (Counseling)
41-51 EAST 11TH STREET, 4TH FLOOR
NEW YORK, NY 10003
New York County (347) 541-5256
MRS. CINDIE DONNA KASTENBAUM LCSW
Social Worker (Clinical)
41-51 EAST 11TH STREET, 4TH FL
NEW YORK, NY 10003
New York County (212) 477-2600
MR. BENNETT MELZAK
Social Worker (Clinical)
41-51 EAST 11TH STREET, 4TH FLOOR
NEW YORK, NY 10003
New York County (917) 579-5507

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 Leslie Altmark's NPI number?

The NPI number for Leslie Altmark is 1689972564. It was assigned to this individual provider in the NPPES registry on March 2, 2011.

Where is Leslie Altmark located?

Leslie Altmark practices at 41-51 East 11th Street 4th Floor, New York, NY 10003. The listed phone number is (212) 477-2600.

What is Leslie Altmark's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Leslie Altmark was last updated on March 2, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.