Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael K Diaz

Q: What is the NPI number for Michael Diaz?

The National Provider Identifier (NPI) for Michael Diaz is 1154283075, a Type 1 (individual) record in the CMS NPPES registry.

Critical Care Medicine Registered Nurse in Palmdale, CA · enumerated 2025.

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

National Provider Identifier

1154283075

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Registry record

Entity type Individual (Type 1)

Name Michael K Diaz

Sex X

Practice address 40266 Reata Rd, Palmdale, CA, 93550

Phone (661) 526-8153

Enumeration date Dec 1, 2025

Last updated in NPPES Dec 1, 2025

Taxonomy & licenses

163WC0200X Critical Care Medicine Registered Nurse Nursing Service Providers · License 95380795 (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

Where does Michael Diaz practice?

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

What is the NPI number for Michael Diaz?

The National Provider Identifier (NPI) for Michael Diaz is 1154283075, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-01.