Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Teresa Jo Armstrong, PA-C

Physician Assistant in Clarion, IA · enumerated 2006.

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

National Provider Identifier

1871602334

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Registry record

Entity type Individual (Type 1)

Name Teresa Jo Armstrong

Credential PA-C

Sex Female

Practice address 1316 S Main St, Clarion, IA, 50525

Phone (515) 463-2228

Enumeration date Aug 29, 2006

Last updated in NPPES Dec 17, 2014

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 001687 (IA) Primary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 2002031633 (MO) Secondary

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 Teresa Armstrong's NPI record?

Cross-check NPI 1871602334 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1871602334 active?

Yes, as of the latest NPPES snapshot, NPI 1871602334 is active (record last updated 2014-12-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-12-17.