NPI Portal NPI Lookup & Verification

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

Silvia R Alonso

Interpreter in Bellflower, CA · enumerated 2023 · practices at A & S Interpreting, Inc.

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

National Provider Identifier

1053010173

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Registry record

Entity type Individual (Type 1)
Name Silvia R Alonso
Sex Female
Practice address Bellflower, CA, 90706
Phone (562) 201-8626
Fax (562) 210-5420
Enumeration date Feb 27, 2023
Last updated in NPPES Feb 27, 2023

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

Taxonomy & licenses

171R00000X Interpreter Other Service Providers · License NBCMI101136 (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.

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Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Silvia Alonso?
Silvia Alonso is registered in NPPES with the primary taxonomy of Interpreter. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-27.