Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stephanie M. Walker, PA-C

Physician Assistant in Sioux City, IA · enumerated 2007.

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

National Provider Identifier

1275668162

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Registry record

Entity type Individual (Type 1)

Name Stephanie M. Walker

Credential PA-C

Sex Female

Practice address 5885 Sunnybrook Dr, Suite E-141, Sioux City, IA, 51106

Phone (712) 266-2760

Fax (712) 266-2789

Enumeration date Feb 22, 2007

Last updated in NPPES Oct 6, 2015

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 001770 (IA) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 001770 (IA) Primary

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

What is the NPI number for Stephanie Walker?

The National Provider Identifier (NPI) for Stephanie Walker is 1275668162, a Type 1 (individual) record in the CMS NPPES registry.

Where does Stephanie Walker practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-06.