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

Silvia Annel Hernandez, COTA

Occupational Therapy Assistant in Mercedes, TX · enumerated 2018 · practices at River Healthcare II LLC.

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

National Provider Identifier

1881173177

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Registry record

Entity type Individual (Type 1)

Name Silvia Annel Hernandez

Credential COTA

Sex Female

Practice address Mercedes, TX, 78570

Phone (956) 565-9300

Enumeration date Aug 8, 2018

Last updated in NPPES Nov 15, 2021

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

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 211752 (TX) 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

Where does Silvia Hernandez practice?

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

What is the NPI number for Silvia Hernandez?

The National Provider Identifier (NPI) for Silvia Hernandez is 1881173177, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-15.