Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Stacy Ann Irwin, APN

Pediatric Nurse Practitioner in Philadelphia, PA · enumerated 2006.

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

National Provider Identifier

1811075070

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Registry record

Entity type Individual (Type 1)

Name Ms. Stacy Ann Irwin

Credential APN

Sex Female

Practice address 833 Chestnut Street East, Suite 300, Philadelphia, PA, 19107

Phone (215) 861-8800

Fax (215) 861-8815

Enumeration date Nov 2, 2006

Last updated in NPPES Aug 30, 2011

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN532602 (PA) Secondary

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN532602 (PA) Primary

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP008417 (PA) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP008417 (PA) Secondary

Other identifiers

Identifier	Type	State	Issuer
61018	Medicaid	NJ	-
4071964	Medicaid	MD	-

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

How do I verify Stacy Irwin's NPI record?

Cross-check NPI 1811075070 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1811075070 active?

Yes, as of the latest NPPES snapshot, NPI 1811075070 is active (record last updated 2011-08-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-30.