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

Stephanie Duff, RN

Infusion Therapy Registered Nurse in Earlham, IA · enumerated 2026.

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

National Provider Identifier

1679424303

Verified

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Registry record

Entity type Individual (Type 1)

Name Stephanie Duff

Credential RN

Sex Female

Practice address Earlham, IA, 50072

Phone (515) 313-5395

Enumeration date Feb 9, 2026

Last updated in NPPES Feb 9, 2026

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

Taxonomy & licenses

163WP0200X Pediatric Registered Nurse Nursing Service Providers · License 109696 (IA) Secondary

163WI0500X Infusion Therapy Registered Nurse Nursing Service Providers · License 109696 (IA) Primary

364SH0200X Home Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 109696 (IA) Secondary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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

Where does Stephanie Duff practice?

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

What is the NPI number for Stephanie Duff?

The National Provider Identifier (NPI) for Stephanie Duff is 1679424303, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-09.