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

Leonardo Cajayon Santos Jr., RN

Registered Nurse in Buena Park, CA · enumerated 2022.

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

National Provider Identifier

1053053330

Verified

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Registry record

Entity type Individual (Type 1)

Name Leonardo Cajayon Santos Jr.

Credential RN

Sex Male

Practice address Buena Park, CA, 90620

Phone (714) 600-9896

Enumeration date Apr 8, 2022

Last updated in NPPES Apr 8, 2022

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 627235 (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

What is the NPI number for Leonardo Santos?

The National Provider Identifier (NPI) for Leonardo Santos is 1053053330, a Type 1 (individual) record in the CMS NPPES registry.

Where does Leonardo Santos practice?

The practice location on file with NPPES is in Buena Park, 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 2022-04-08.