NPI Portal NPI Lookup & Verification

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

Mr. Terrence Allen Williams

Hearing Instrument Specialist in New York, NY · enumerated 2008.

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

National Provider Identifier

1407027600

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Registry record

Entity type Individual (Type 1)
Name Mr. Terrence Allen Williams
Sex Male
Practice address New York, NY, 10004
Phone (917) 305-7922
Fax (917) 305-7932
Enumeration date Mar 14, 2008
Last updated in NPPES Mar 14, 2008

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

Taxonomy & licenses

237700000X Hearing Instrument Specialist Speech, Language and Hearing Service Providers · License 14000002846 (NY) Primary

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

What is the NPI number for Terrence Williams?
The National Provider Identifier (NPI) for Terrence Williams is 1407027600, a Type 1 (individual) record in the CMS NPPES registry.
Where does Terrence Williams practice?
The practice location on file with NPPES is in New York, NY. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-14.