HOLLY WILLIAMSEN MSW, LCSW
NPI 1750405932
Social Worker - Clinical in North Hollywood, CA

Active since March 16, 2007
10526 DUBNOFF WAY, NORTH HOLLYWOOD, CA 91606(310) 755-4950 Get Directions Write a Review

NPPES record last updated: May 6, 2013. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Holly Williamsen Msw, Lcsw NPPES

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

HOLLY WILLIAMSEN MSW, LCSW (NPI 1750405932) is an individual clinical provider in North Hollywood, California, licensed in California (24179) and active in the NPI registry since March 2007.

NPPES Registry Identity

NPI1750405932
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameHOLLY WILLIAMSENCredential: MSW, LCSW
Location Address10526 DUBNOFF WAYNorth Hollywood, CA 91606-3921
Mailing Address10526 Dubnoff WayNo Hollywood, CA 91606 · (818) 755-4950
Sole ProprietorYes
Enumeration DateMarch 16, 2007
Last NPPES UpdateMay 6, 2013
NPI 1750405932 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 · 24179
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.
10526 DUBNOFF WAY, North Hollywood, CA 91606

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.

Marriage & Family Therapist
10526 DUBNOFF WAY
NORTH HOLLYWOOD, CA 91606
Social Worker
10526 DUBNOFF WAY
NORTH HOLLYWOOD, CA 91606
Case Manager/Care Coordinator
10526 DUBNOFF WAY
NORTH HOLLYWOOD, CA 91606
Case Manager/Care Coordinator
10526 DUBNOFF WAY
NORTH HOLLYWOOD, CA 91606
Psychologist (Clinical)
10526 DUBNOFF WAY
NORTH HOLLYWOOD, CA 91606
Marriage & Family Therapist
10526 DUBNOFF WAY
NORTH HOLLYWOOD, CA 91606
Student in an Organized Health Care Education/Training Program
10526 DUBNOFF WAY
NORTH HOLLYWOOD, CA 91606
Psychologist
10526 DUBNOFF WAY
NORTH HOLLYWOOD, CA 91606

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 Holly Williamsen's NPI number?

The NPI number for Holly Williamsen is 1750405932. It was assigned to this individual provider in the NPPES registry on March 16, 2007.

Where is Holly Williamsen located?

Holly Williamsen practices at 10526 Dubnoff Way, North Hollywood, CA 91606. The listed phone number is (310) 755-4950.

What is Holly Williamsen'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 Holly Williamsen was last updated on May 6, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.