MRS. GRETHEL LEFF ASW
NPI 1851692842
Social Worker - Clinical in Pleasanton, CA

Active since November 08, 2010
5354 CASE AVE, # 920, PLEASANTON, CA 94566(925) 895-2661 Get Directions Write a Review

NPPES record last updated: December 13, 2010. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mrs. Grethel Leff Asw NPPES

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

MRS. GRETHEL LEFF ASW (NPI 1851692842) is an individual clinical provider in Pleasanton, California, licensed in California (28974) and active in the NPI registry since November 2010.

NPPES Registry Identity

NPI1851692842
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMRS. GRETHEL LEFFCredential: ASW
Location Address5354 CASE AVE, # 920Pleasanton, CA 94566-8019
Mailing Address5354 Case Ave, # 920Pleasanton, CA 94566-8019 · (925) 895-2661
Sole ProprietorNo
Enumeration DateNovember 8, 2010
Last NPPES UpdateDecember 13, 2010
NPI 1851692842 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 CA · 28974
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.
5354 CASE AVE, Pleasanton, CA 94566

Other Names 1

Professional Name (2)Mrs. Grethel Leff-mojica Msw

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 Grethel Leff's NPI number?

The NPI number for Grethel Leff is 1851692842. It was assigned to this individual provider in the NPPES registry on November 8, 2010. The provider is also known as Mrs. Grethel Leff-Mojica Msw.

Where is Grethel Leff located?

Grethel Leff practices at 5354 Case Ave # 920, Pleasanton, CA 94566. The listed phone number is (925) 895-2661.

What is Grethel Leff'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 Grethel Leff was last updated on December 13, 2010. 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.