1. Home
  2. Directory
  3. California
  4. San Dimas
  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.

CRYSTAL ALVARENGA
NPI 1104376789
Social Worker - School in San Dimas, CA

Active since October 07, 2016
115 W ALLEN AVE, SAN DIMAS, CA 91773(909) 971-8200 Get Directions Write a Review

NPPES record last updated: October 1, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Oct 1, 2026, Jun 15, 2018 (2 updates tracked since 2018).

About Crystal Alvarenga NPPES

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

CRYSTAL ALVARENGA (NPI 1104376789) is an individual school provider in San Dimas, California, licensed in California (LCSW100914) and active in the NPI registry since October 2016.

NPPES Registry Identity

NPI1104376789
Entity TypeIndividualFemale
Primary Taxonomy1041S0200X
Provider Legal NameCRYSTAL ALVARENGA
Location Address115 W ALLEN AVESan Dimas, CA 91773-1437
Mailing Address115 W Allen AveSan Dimas, CA 91773-1437 · (909) 971-8200
Phone(909) 971-8200
Sole ProprietorYes
Enumeration DateOctober 7, 2016
Last NPPES UpdateOctober 1, 20262 updates tracked since enumeration
NPPES CertifiedOctober 1, 2026
✔ NPI 1104376789 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · SchoolBehavioral Health & Social Service Providers
Taxonomy Code1041S0200X
License✔ Licensed in CA · LCSW100914
115 W ALLEN AVE, San Dimas, CA 91773
Open in Google Maps ↗

Other Identifiers 4

Other7667CA · Medi-cal
Other7368CA · Medi-cal
Other7184CA · Medi-cal
Other7708CA · Medi-cal

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.

GEOVANNA ALEJANDRA STINGLEY COTA
Occupational Therapy Assistant
115 W ALLEN AVE
SAN DIMAS, CA 91773
Los Angeles County (909) 971-8200
HANNAH TANNER
Psychologist (School)
115 W ALLEN AVE
SAN DIMAS, CA 91773
Los Angeles County (909) 971-8200
KERI HADJIS PPS
Psychologist (School)
115 W ALLEN AVE
SAN DIMAS, CA 91773
Los Angeles County (909) 971-8206
DR. CAMILLE JONES
Psychologist (School)
115 W ALLEN AVE
SAN DIMAS, CA 91773
Los Angeles County (909) 667-9141
JACOB LOPEZ
Social Worker (School)
115 W ALLEN AVE
SAN DIMAS, CA 91773
Los Angeles County (909) 971-8200
ARCELIA DIANA MADRID ROMO ED.S.
Psychologist (School)
115 W ALLEN AVE
SAN DIMAS, CA 91773
Los Angeles County (909) 971-8204
MELISSA WILLMORE
Psychologist (School)
115 W ALLEN AVE
SAN DIMAS, CA 91773
Los Angeles County (909) 971-8203
MR. ISSAC RENE CONTRERAS
Counselor
115 W ALLEN AVE
SAN DIMAS, CA 91773
Los Angeles County (909) 526-9499

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 Crystal Alvarenga's NPI number?

The NPI number for Crystal Alvarenga is 1104376789. It was assigned to this individual provider in the NPPES registry on October 7, 2016.

Where is Crystal Alvarenga located?

Crystal Alvarenga practices at 115 W Allen Ave, San Dimas, CA 91773. The listed phone number is (909) 971-8200.

What is Crystal Alvarenga's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in School, with taxonomy code 1041S0200X.

When was this NPI record last updated?

The NPPES record for Crystal Alvarenga was last updated on October 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.