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GUILLERMO CASTELLANOS
NPI 1609908664
Counselor - Mental Health in Northridge, CA

Active since March 12, 2007
9650 ZELZAH AVE, NORTHRIDGE, CA 91325(818) 993-9311 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Guillermo Castellanos NPPES

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

GUILLERMO CASTELLANOS (NPI 1609908664) is an individual mental health provider in Northridge, California and active in the NPI registry since March 2007.

NPPES Registry Identity

NPI1609908664
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameGUILLERMO CASTELLANOS
Location Address9650 ZELZAH AVENorthridge, CA 91325-2003
Mailing Address9650 Zelzah AveNorthridge, CA 91325-2003
Phone(818) 993-9311
Sole ProprietorYes
Enumeration DateMarch 12, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1609908664 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
9650 ZELZAH AVE, Northridge, CA 91325
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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.

LORENA GUTIERREZ
Rehabilitation Practitioner
9650 ZELZAH AVE
NORTHRIDGE, CA 91325
Los Angeles County (818) 993-9311
CLAUDIA CONTRERAS
Rehabilitation Practitioner
9650 ZELZAH AVE
NORTHRIDGE, CA 91325
Los Angeles County (818) 993-9311
JENNIFER SUSZYCKI
Rehabilitation Practitioner
9650 ZELZAH AVE
NORTHRIDGE, CA 91325
Los Angeles County (818) 993-9311
ANGELA PONCE
Social Worker (Clinical)
9650 ZELZAH AVE
NORTHRIDGE, CA 91325
Los Angeles County (818) 993-9311
LUPITA MENDOZA
Rehabilitation Practitioner
9650 ZELZAH AVE
NORTHRIDGE, CA 91325
Los Angeles County (818) 993-9311
ESMERALDA DIAZ BA
Day Training/Habilitation Specialist
9650 ZELZAH AVE
NORTHRIDGE, CA 91325
Los Angeles County (818) 993-9311
RUPAL MANKASSARIAN
Social Worker (Clinical)
9650 ZELZAH AVE
NORTHRIDGE, CA 91325
Los Angeles County (818) 993-9311
CARLA BARCLAY RIZK
Marriage & Family Therapist
9650 ZELZAH AVE
NORTHRIDGE, CA 91325
Los Angeles County (818) 993-9311

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 Guillermo Castellanos's NPI number?

The NPI number for Guillermo Castellanos is 1609908664. It was assigned to this individual provider in the NPPES registry on March 12, 2007.

Where is Guillermo Castellanos located?

Guillermo Castellanos practices at 9650 Zelzah Ave, Northridge, CA 91325. The listed phone number is (818) 993-9311.

What is Guillermo Castellanos's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Guillermo Castellanos was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.