Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Lindsay Ellen Matthews, MACOM, L.AC

Acupuncturist in Lake Oswego, OR · enumerated 2009.

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

National Provider Identifier

1235377961

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Registry record

Entity type Individual (Type 1)

Name Mrs. Lindsay Ellen Matthews

Credential MACOM, L.AC

Sex Female

Practice address 375 N State St, Lake Oswego, OR, 97034

Phone (503) 908-0157

Enumeration date Feb 3, 2009

Last updated in NPPES Feb 3, 2009

Taxonomy & licenses

171100000X Acupuncturist Other Service Providers · License AC01253 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1235377961 active?

Yes, as of the latest NPPES snapshot, NPI 1235377961 is active (record last updated 2009-02-03).

How do I verify Lindsay Matthews's NPI record?

Cross-check NPI 1235377961 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-03.