NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Matthew Gowan Schaffer, LMT

Specialist in Clackamas, OR · enumerated 2008 · practices at Distinctive Dentistry, LLC.

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

National Provider Identifier

1982873451

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Registry record

Entity type Individual (Type 1)
Name Mr. Matthew Gowan Schaffer
Credential LMT
Sex Male
Practice address Clackamas, OR, 97015
Enumeration date Feb 28, 2008
Last updated in NPPES Feb 28, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 11188 (OR) 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 NPI 1982873451 active?
Yes, as of the latest NPPES snapshot, NPI 1982873451 is active (record last updated 2008-02-28).
How do I verify Matthew Schaffer's NPI record?
Cross-check NPI 1982873451 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-28.