Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LEONOR MARIA SIERRA ASW 141493
NPI 1083321608
Counselor - Professional in Modesto, CA

Q: What is Leonor Sierra's NPI number?

The NPI number for Leonor Sierra is 1083321608. It was assigned to this individual provider in the NPPES registry on November 2, 2022.

Q: What is Leonor Sierra's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Q: When was this NPI record last updated?

The NPPES record for Leonor Sierra was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since November 02, 2022

1601 I ST STE 200, MODESTO, CA 95354(209) 312-4081 Get Directions Write a Review

NPPES record last updated: August 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 13, 2026, Nov 2, 2022 (2 updates tracked since 2022).

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About Leonor Maria Sierra Asw 141493 NPPES

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

LEONOR MARIA SIERRA ASW 141493 (NPI 1083321608) is an individual professional provider in Modesto, California, licensed in California (94848) and active in the NPI registry since November 2022.

NPPES Registry Identity

NPI1083321608

Entity TypeIndividualFemale

Primary Taxonomy101YP2500X

Provider Legal NameLEONOR MARIA SIERRACredential: ASW 141493

Location Address1601 I ST STE 200Modesto, CA 95354-1135

Mailing Address1601 I St Ste 200Modesto, CA 95354-1135 · (209) 525-6159

Phone(209) 312-4081

Sole ProprietorNo

Enumeration DateNovember 2, 2022

Last NPPES UpdateAugust 13, 20262 updates tracked since enumeration

NPPES CertifiedAugust 13, 2026

✔ NPI 1083321608 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers

Taxonomy Code101YP2500X

License✔ Licensed in CA · 94848

1601 I ST STE 200, Modesto, CA 95354

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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 Leonor Sierra's NPI number?

The NPI number for Leonor Sierra is 1083321608. It was assigned to this individual provider in the NPPES registry on November 2, 2022.

Where is Leonor Sierra located?

Leonor Sierra practices at 1601 I St Ste 200, Modesto, CA 95354. The listed phone number is (209) 312-4081.

What is Leonor Sierra's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

When was this NPI record last updated?

The NPPES record for Leonor Sierra was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.