NPI Portal NPI Lookup & Verification

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

Mary J Thimmesch, L.AC., MSOM

Acupuncturist in Eugene, OR · enumerated 2011.

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

National Provider Identifier

1477852457

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Registry record

Entity type Individual (Type 1)
Name Mary J Thimmesch
Credential L.AC., MSOM
Sex Female
Practice address Eugene, OR, 97401
Phone (541) 683-6337
Enumeration date Mar 16, 2011
Last updated in NPPES Mar 16, 2011

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

Taxonomy & licenses

171100000X Acupuncturist Other Service Providers · License AC01080 (OR) Primary
LAC · Licensed Acupuncturist: A practitioner licensed to perform acupuncture. About the LAC credential

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 1477852457 active?
Yes, as of the latest NPPES snapshot, NPI 1477852457 is active (record last updated 2011-03-16).
How do I verify Mary Thimmesch's NPI record?
Cross-check NPI 1477852457 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 2011-03-16.