Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Erin Leigh Duff, NP

Nurse Practitioner in Durham, NC · enumerated 2006.

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

National Provider Identifier

1326131913

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Registry record

Entity type Individual (Type 1)

Name Ms. Erin Leigh Duff

Credential NP

Sex Female

Practice address 2100 Erwin Rd, Durham, NC, 27710

Phone (919) 684-8111

Enumeration date Oct 2, 2006

Last updated in NPPES Apr 8, 2008

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F304410 (NY) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Primary

NP — Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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 1326131913 active?

Yes — as of the latest NPPES snapshot, NPI 1326131913 is active (record last updated 2008-04-08).

How do I verify Erin Duff's NPI record?

Cross-check NPI 1326131913 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 2008-04-08.