NPI Portal NPI Lookup & Verification

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

Mrs. Leslie Boozer Irwin, APRN, FNP-C

Family Nurse Practitioner in Englewood, CO · enumerated 2024.

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

National Provider Identifier

1265265433

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Registry record

Entity type Individual (Type 1)
Name Mrs. Leslie Boozer Irwin
Credential APRN, FNP-C
Sex Female
Practice address Englewood, CO, 80113
Phone (207) 698-4397
Fax (303) 955-1202
Enumeration date Aug 23, 2024
Last updated in NPPES May 14, 2025

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APN.0999925-NP (CO) Primary
APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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.

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Frequently asked questions

Is NPI 1265265433 active?
Yes, as of the latest NPPES snapshot, NPI 1265265433 is active (record last updated 2025-05-14).
How do I verify Leslie Irwin's NPI record?
Cross-check NPI 1265265433 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-14.