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

Maria Gru Hernandez, RDN

Registered Dietitian in Simi Valley, CA · enumerated 2021.

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

National Provider Identifier

1801465042

Verified

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Registry record

Entity type Individual (Type 1)

Name Maria Gru Hernandez

Credential RDN

Sex Female

Practice address Simi Valley, CA, 93065

Phone (805) 338-0052

Enumeration date Jun 22, 2021

Last updated in NPPES Jun 22, 2021

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

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 1082785 (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 Maria Gru Hernandez?

The National Provider Identifier (NPI) for Maria Gru Hernandez is 1801465042, a Type 1 (individual) record in the CMS NPPES registry.

Where does Maria Gru Hernandez practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-22.