Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John David Shaffer, CPO

Prosthetist in Seattle, WA · enumerated 2007.

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

National Provider Identifier

1376750695

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Registry record

Entity type Individual (Type 1)

Name John David Shaffer

Credential CPO

Sex Male

Practice address 4800 Sand Point Way Ne, Seattle, WA, 98105

Phone (206) 987-8448

Fax (206) 987-8449

Enumeration date May 17, 2007

Last updated in NPPES Mar 20, 2018

Taxonomy & licenses

222Z00000X Orthotist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OI00000334 (WA) Secondary

224P00000X Prosthetist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PS00000360 (WA) 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.

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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 John Shaffer?

John Shaffer 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 2018-03-20.