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CLAUDIA DIAZ
NPI 1538726765
Social Worker - Clinical in Walnut, CA

Active since May 23, 2019PECOS Enrolled

NPPES record last updated: May 5, 2025. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: May 5, 2025, Aug 15, 2023, Jul 7, 2023 and 3 more (6 updates tracked since 2019).

About Claudia Diaz NPPES

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

CLAUDIA DIAZ (NPI 1538726765) is an individual clinical provider in Walnut, California, licensed in California (LCSW117114) and active in the NPI registry since May 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1538726765
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameCLAUDIA DIAZ
Location AddressPO BOX 1033Walnut, CA 91788-1033
Mailing AddressPo Box 1033Walnut, CA 91788-1033 · (909) 510-3880
Phone(909) 510-3880
Sole ProprietorYes
Enumeration DateMay 23, 2019
Last NPPES UpdateMay 5, 20256 updates tracked since enumeration
NPPES CertifiedMay 5, 2025
✔ NPI 1538726765 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · LCSW117114
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.
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X
Also ListedSocial WorkerTaxonomy 104100000X
Also ListedRehabilitation PractitionerTaxonomy 225400000X
PO BOX 1033, Walnut, CA 91788
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Claudia Diaz is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91788 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $62.96 – $187.60
Typical copayment $0.00 (range $15.74 – $46.90)
Most-billed visit code NA
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Claudia Diaz's NPI number?

The NPI number for Claudia Diaz is 1538726765. It was assigned to this individual provider in the NPPES registry on May 23, 2019.

Where is Claudia Diaz located?

Claudia Diaz practices at PO Box 1033, Walnut, CA 91788. The listed phone number is (909) 510-3880.

What is Claudia Diaz's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Claudia Diaz enrolled in Medicare?

Yes. Claudia Diaz is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Claudia Diaz was last updated on May 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.