Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Silvia Alejandra Altamiranda, ASW35631

Social Worker in Concord, CA · enumerated 2008.

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

National Provider Identifier

1396922480

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Registry record

Entity type Individual (Type 1)

Name Silvia Alejandra Altamiranda

Credential ASW35631

Sex Female

Practice address 1410 Danzig Plz, Suite 200, Concord, CA, 94520

Phone (510) 677-9677

Enumeration date Jan 30, 2008

Last updated in NPPES Apr 11, 2013

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License ASW35631 (CA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Silvia Altamiranda?

The National Provider Identifier (NPI) for Silvia Altamiranda is 1396922480, a Type 1 (individual) record in the CMS NPPES registry.

Where does Silvia Altamiranda practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-11.