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

Linda M. Wallace, CCC-A

Audiologist in Cambridge, MA · enumerated 2006.

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

National Provider Identifier

1184694473

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Registry record

Entity type Individual (Type 1)

Name Linda M. Wallace

Credential CCC-A

Sex Female

Practice address Cambridge, MA, 02138

Phone (617) 661-5525

Enumeration date Jan 26, 2006

Last updated in NPPES Oct 26, 2009

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

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 388 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
B501027	Other	MA	CIGNA
PJ183	Other	MA	HARVARD PILGRIM
0014863	Other	MA	NEIGHBORHOOD HEALTH PLAN
5103053	Medicaid	MA	-
AD0161	Other	MA	BLUE CROSS

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 Linda Wallace?

Linda Wallace 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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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-26.