Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ezequiel David Castro, RN

Registered Nurse in Redwood City, CA · enumerated 2026.

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

National Provider Identifier

1689599615

Verified

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Registry record

Entity type Individual (Type 1)

Name Ezequiel David Castro

Credential RN

Sex Male

Practice address 280 Edmonds Rd Bldg B, Redwood City, CA, 94062

Phone (650) 479-9090

Enumeration date Aug 11, 2026

Last updated in NPPES Aug 11, 2026

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 95467010 (CA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

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

Where does Ezequiel Castro practice?

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

What is the NPI number for Ezequiel Castro?

The National Provider Identifier (NPI) for Ezequiel Castro is 1689599615, 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 2026-08-11.