Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

House Research Institute

Q: What is the NPI number for House Research Institute?

The NPI for House Research Institute is 1407981129, a Type 2 (organization) record in the CMS NPPES registry.

Audiologist-Hearing Aid Fitter in Los Angeles, CA · enumerated 2007 · authorized official Margaret Winter, Director.

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

National Provider Identifier

1407981129

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Registry record

Entity type Organization (Type 2)

Legal business name House Research Institute

Practice address 2100 W 3rd St, Los Angeles, CA, 90057

Phone (213) 483-4431

Enumeration date Feb 22, 2007

Last updated in NPPES Oct 3, 2013

Taxonomy & classification

103T00000X Psychologist Behavioral Health & Social Service Providers · License 13613 (CA) Secondary

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 19842 (CA) Secondary

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 16174 (CA) Secondary

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License AU2550 (CA) Secondary

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License AU2810 (CA) Secondary

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License AU2751 (CA) Secondary

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License AU407 (CA) Primary

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License AU1052 (CA) Secondary

Authorized official

Name Margaret Winter

Title Director

Phone (626) 457-4145

Other identifiers

Identifier	Type	State	Issuer
GR0021730	Other	CA	CCSMEDICAL

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

Who is the authorized official for House Research Institute?

NPPES lists Margaret Winter (Director) as the authorized official for this organization.

What is the NPI number for House Research Institute?

The NPI for House Research Institute is 1407981129, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-10-03.