Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christopher J Osier, PA-C

Physician Assistant in Chariton, IA · enumerated 2006.

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

National Provider Identifier

1275513350

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Registry record

Entity type Individual (Type 1)

Name Christopher J Osier

Credential PA-C

Sex Male

Practice address 1200 N 7th St, Chariton, IA, 50049

Phone (641) 774-8103

Fax (641) 774-8087

Enumeration date Jan 17, 2006

Last updated in NPPES Feb 8, 2012

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 001160 (IA) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 001160 (IA) Primary

Other identifiers

Identifier	Type	State	Issuer
26177	Other	IA	WELLMARK
1275513350	Other	IA	WELLMARK

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 specialty is Christopher Osier?

Christopher Osier is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-08.