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

Mr. Irving Byer

Pharmacist in New York, NY · enumerated 2017 · practices at 255 Columbus Ave Corp.

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

National Provider Identifier

1194265819

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Registry record

Entity type Individual (Type 1)
Name Mr. Irving Byer
Sex Male
Practice address New York, NY, 10023
Phone (212) 362-9170
Enumeration date Feb 28, 2017
Last updated in NPPES Feb 28, 2017

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

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 026444 (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

Where does Irving Byer practice?
The practice location on file with NPPES is in New York, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Irving Byer?
The National Provider Identifier (NPI) for Irving Byer is 1194265819, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-28.