Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karl B Barner, C.P.O.

Prosthetist in Anchorage, AK · enumerated 2007.

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

National Provider Identifier

1134263221

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Registry record

Entity type Individual (Type 1)

Name Karl B Barner

Credential C.P.O.

Sex Male

Practice address 4200 Lake Otis Pkwy, Suite 101, Anchorage, AK, 99508

Phone (907) 561-1777

Fax (907) 561-2157

Enumeration date Feb 20, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

224P00000X Prosthetist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary

222Z00000X Orthotist Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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.

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Frequently asked questions

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.

What specialty is Karl Barner?

Karl Barner is registered in NPPES with the primary taxonomy of Prosthetist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.