Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Lyndsay Adele Duffus, AU.D.

Audiologist in Portland, OR · enumerated 2006.

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

National Provider Identifier

1124098629

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Registry record

Entity type Individual (Type 1)

Name Ms. Lyndsay Adele Duffus

Credential AU.D.

Sex Female

Practice address 707 Sw Gaines St, Portland, OR, 97239

Phone (503) 494-4462

Enumeration date Jan 25, 2006

Last updated in NPPES Jul 14, 2011

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 22493 (OR) Primary

AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD 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 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 Lyndsay Duffus?

Lyndsay Duffus is registered in NPPES with the primary taxonomy of Audiologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Laurie Armsby Pediatric Cardiology Physician · Portland, OR NPI 1184613960 Karen Kovak Genetic Counselor (M.S.) · Portland, OR NPI 1194714725 Kory Keller Genetic Counselor (M.S.) · Portland, OR NPI 1245218569 Lindsey Nicol Pediatric Endocrinology Physician · Portland, OR NPI 1306801386 Kevin Senn Pediatrics Physician · Portland, OR NPI 1013973668 Mark Reller Pediatric Cardiology Physician · Portland, OR NPI 1972548469 Brian Scottoline Neonatal-Perinatal Medicine Physician · Portland, OR NPI 1669409223 Megan Aylor Pediatrics Physician · Portland, OR NPI 1700815362

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-14.