Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Elvira Del Castillo, MSW

Social Worker in Norwalk, CA · enumerated 2010 · practices at Altamed Health Services Corp.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1740512060

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Registry record

Entity type Individual (Type 1)

Name Elvira Del Castillo

Credential MSW

Sex Female

Practice address Norwalk, CA, 90650

Phone (562) 923-5414

Fax (562) 622-1902

Enumeration date Feb 11, 2010

Last updated in NPPES Dec 16, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 79997 (CA) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 79997 (CA) Secondary

225400000X Rehabilitation Practitioner Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

104100000X Social Worker Behavioral Health & Social Service Providers Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Elvira Del Castillo?

The National Provider Identifier (NPI) for Elvira Del Castillo is 1740512060, a Type 1 (individual) record in the CMS NPPES registry.

Where does Elvira Del Castillo practice?

The practice location on file with NPPES is in Norwalk, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Alma Bretado Social Worker · Norwalk, CA NPI 1871619221 Altamed Health Services Corp PACE Provider Organization · Norwalk, CA NPI 1902192875 Desiree Mares Social Worker · Norwalk, CA NPI 1508319641 Jennifer Hernandez Alarcon Social Worker · Norwalk, CA NPI 1306328703 Liliana Cornejo Social Worker · Norwalk, CA NPI 1902361520 Amberlyn Sierra Clinical Social Worker · Norwalk, CA NPI 1184180143 Heleen Medina Social Worker · Norwalk, CA NPI 1588121388 Archana Prasad Family Medicine Physician · Norwalk, CA NPI 1316504525

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-16.