WILLIAM VICTOR MARES
NPI 1376914960
Social Worker - Clinical in Fremont, CA

Active since October 08, 2015
39199 LIBERTY ST, FREMONT, CA 94538(209) 303-7341 Get Directions Write a Review

NPPES record last updated: May 19, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 19, 2022, Aug 12, 2019 (2 updates tracked since 2019).

About William Victor Mares NPPES

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

WILLIAM VICTOR MARES (NPI 1376914960) is an individual clinical provider in Fremont, California, licensed in California (84439) and active in the NPI registry since October 2015.

NPPES Registry Identity

NPI1376914960
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameWILLIAM VICTOR MARES
Location Address39199 LIBERTY STFremont, CA 94538-1501
Mailing Address39199 Liberty StFremont, CA 94538-1501 · (209) 303-7341
Sole ProprietorYes
Enumeration DateOctober 8, 2015
Last NPPES UpdateMay 19, 20222 updates tracked since enumeration
NPPES CertifiedMay 19, 2022
NPI 1376914960 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License Licensed in CA · 84439
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.
Also ListedSocial WorkerTaxonomy 104100000X · License 66815 (CA), 84439 (CA)
39199 LIBERTY ST, Fremont, CA 94538

Other Providers at the Same Location NPPES 10

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

Clinic/Center (VA)
39199 LIBERTY ST
FREMONT, CA 94538
Social Worker (Clinical)
39199 LIBERTY ST
FREMONT, CA 94538
Internal Medicine
39199 LIBERTY ST, BUILDING B
FREMONT, CA 94538
Nurse Practitioner (Psychiatric/Mental Health)
39199 LIBERTY ST
FREMONT, CA 94538
Social Worker (Clinical)
39199 LIBERTY ST
FREMONT, CA 94538
Internal Medicine
39199 LIBERTY ST, BUILDING B
FREMONT, CA 94538
Social Worker (Clinical)
39199 LIBERTY ST
FREMONT, CA 94538
Registered Nurse
39199 LIBERTY ST
FREMONT, CA 94538

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 William Mares's NPI number?

The NPI number for William Mares is 1376914960. It was assigned to this individual provider in the NPPES registry on October 8, 2015.

Where is William Mares located?

William Mares practices at 39199 Liberty St, Fremont, CA 94538. The listed phone number is (209) 303-7341.

What is William Mares'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 William Mares was last updated on May 19, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.