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MARIA ESTHER ARREOLA
NPI 1154198463
Social Worker in Monrovia, CA

Active since December 06, 2023
50 W LEMON AVE, MONROVIA, CA 91016(626) 296-8900 Get Directions Write a Review

NPPES record last updated: September 26, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 19, 2024, Dec 6, 2023 (2 updates tracked since 2023).

About Maria Esther Arreola NPPES

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

MARIA ESTHER ARREOLA (NPI 1154198463) is an individual social worker in Monrovia, California, licensed in California (123923) and active in the NPI registry since December 2023.

NPPES Registry Identity

NPI1154198463
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameMARIA ESTHER ARREOLA
Location Address50 W LEMON AVEMonrovia, CA 91016-6153
Mailing Address333 W California Blvd Apt 202Pasadena, CA 91105-2944 · (626) 394-5139
Phone(626) 296-8900
Sole ProprietorYes
Enumeration DateDecember 6, 2023
Last NPPES UpdateSeptember 26, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 26, 2025
✔ NPI 1154198463 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in CA · 123923
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
50 W LEMON AVE, Monrovia, CA 91016
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Other Providers at the Same Location NPPES 2

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

CANNETO HOME HEALTH INC
Home Health
50 W LEMON AVE, SUITE 11
MONROVIA, CA 91016
Los Angeles County (626) 357-0200
MRS. SHERRY LOUISE VILLANUEVA
Marriage & Family Therapist
50 W LEMON AVE, SUITE 30
MONROVIA, CA 91016
Los Angeles County (626) 217-2281

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 Maria Arreola's NPI number?

The NPI number for Maria Arreola is 1154198463. It was assigned to this individual provider in the NPPES registry on December 6, 2023.

Where is Maria Arreola located?

Maria Arreola practices at 50 W Lemon Ave, Monrovia, CA 91016. The listed phone number is (626) 296-8900.

What is Maria Arreola's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Maria Arreola was last updated on September 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.