1. Home
  2. Directory
  3. California
  4. Santa Monica
  5. Social Worker
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

NIR LIEBENTHAL ACSW
NPI 1811889231
Social Worker in Santa Monica, CA

Active since July 18, 2025
1339 20TH ST, SANTA MONICA, CA 90404(310) 829-8921 Get Directions Write a Review

NPPES record last updated: September 30, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

About Nir Liebenthal Acsw NPPES

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

NIR LIEBENTHAL ACSW (NPI 1811889231) is an individual social worker in Santa Monica, California, licensed in California (ASW141393) and active in the NPI registry since July 2025.

NPPES Registry Identity

NPI1811889231
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameNIR LIEBENTHALCredential: ACSW
Location Address1339 20TH STSanta Monica, CA 90404-2033
Mailing Address201 N Toluca St Apt 16Los Angeles, CA 90026-5696 · (781) 718-5063
Phone(310) 829-8921
Sole ProprietorNo
Enumeration DateJuly 18, 2025
Last NPPES UpdateSeptember 30, 2026
NPPES CertifiedSeptember 30, 2026
✔ NPI 1811889231 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in CA · ASW141393
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.
1339 20TH ST, Santa Monica, CA 90404
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.

JULIANA CARRANZA LCSW
Social Worker (Clinical)
1339 20TH ST
SANTA MONICA, CA 90404
Los Angeles County (310) 829-8609
MS. KATE D MCGINNIS LCSW
Social Worker (Clinical)
1339 20TH ST
SANTA MONICA, CA 90404
Los Angeles County (310) 829-8921
CATHARINA LOUISA PRETORIUS
Student in an Organized Health Care Education/Training Program
1339 20TH ST
SANTA MONICA, CA 90404
Los Angeles County (310) 829-8921
TASHA BOUCHER M.S.
Marriage & Family Therapist
1339 20TH ST
SANTA MONICA, CA 90404
Los Angeles County (310) 829-8573
ANNIE PILL
Social Worker (Clinical)
1339 20TH ST
SANTA MONICA, CA 90404
Los Angeles County (310) 829-8558
MR. ADAM CORTEZ MSW, LCSW
Social Worker (Clinical)
1339 20TH ST
SANTA MONICA, CA 90404
Los Angeles County (310) 829-8921
ABIGAIL PINEDA LMFT
Marriage & Family Therapist
1339 20TH ST
SANTA MONICA, CA 90404
Los Angeles County (310) 829-8921
KATHERINE STRONG MSW, MPH
Counselor (Mental Health)
1339 20TH ST
SANTA MONICA, CA 90404
Los Angeles County (310) 829-8586

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 Nir Liebenthal's NPI number?

The NPI number for Nir Liebenthal is 1811889231. It was assigned to this individual provider in the NPPES registry on July 18, 2025.

Where is Nir Liebenthal located?

Nir Liebenthal practices at 1339 20th St, Santa Monica, CA 90404. The listed phone number is (310) 829-8921.

What is Nir Liebenthal'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 Nir Liebenthal was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.