Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ellen Q Stepniewski, ARNP

Pediatric Nurse Practitioner in Yakima, WA · enumerated 2006.

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

National Provider Identifier

1790881340

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Registry record

Entity type Individual (Type 1)

Name Ellen Q Stepniewski

Credential ARNP

Sex Female

Practice address 314 S 11th Ave, Suite A, Yakima, WA, 98902

Phone (509) 575-0114

Fax (509) 575-0808

Enumeration date Sep 14, 2006

Last updated in NPPES May 28, 2015

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP30000788 (WA) Primary

Other identifiers

Identifier	Type	State	Issuer
0254317	Other	WA	LABOR & INDUSTRIES
9605619	Medicaid	WA	-

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

How do I verify Ellen Stepniewski's NPI record?

Cross-check NPI 1790881340 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1790881340 active?

Yes, as of the latest NPPES snapshot, NPI 1790881340 is active (record last updated 2015-05-28).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-28.