Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tatyana Armstead, FNP

Family Nurse Practitioner in Mecca, CA · enumerated 2019.

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

National Provider Identifier

1538620133

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Registry record

Entity type Individual (Type 1)

Name Tatyana Armstead

Credential FNP

Sex Female

Practice address 91275 66th St, Suite 500, Mecca, CA, 92254

Phone (760) 396-1249

Fax (760) 396-1253

Enumeration date Mar 27, 2019

Last updated in NPPES Aug 12, 2022

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95021512 (CA) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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

Is NPI 1538620133 active?

Yes, as of the latest NPPES snapshot, NPI 1538620133 is active (record last updated 2022-08-12).

How do I verify Tatyana Armstead's NPI record?

Cross-check NPI 1538620133 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-12.