Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Meryl Castro

Q: What is the NPI number for Meryl Castro?

The National Provider Identifier (NPI) for Meryl Castro is 1730822792, a Type 1 (individual) record in the CMS NPPES registry.

Registered Nurse in Grover Beach, CA · enumerated 2022 · practices at San Luis Obispo Public Health Agency.

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

National Provider Identifier

1730822792

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Registry record

Entity type Individual (Type 1)

Name Meryl Castro

Sex Female

Practice address 286 S 16th St, Grover Beach, CA, 93433

Phone (805) 473-7116

Enumeration date Apr 18, 2022

Last updated in NPPES Apr 18, 2022

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 763313 (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 Meryl Castro?

The National Provider Identifier (NPI) for Meryl Castro is 1730822792, a Type 1 (individual) record in the CMS NPPES registry.

Where does Meryl Castro practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-18.