Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tom Groszko

Hearing Instrument Specialist in Dayton, OH · enumerated 2018 · practices at Jeffrey P Vehr Company , Ltd.

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

National Provider Identifier

1124518790

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Registry record

Entity type Individual (Type 1)

Name Tom Groszko

Sex Male

Practice address 2216 Woodman Dr, Dayton, OH, 45420

Phone (937) 222-1000

Enumeration date May 18, 2018

Last updated in NPPES May 18, 2018

Taxonomy & licenses

237700000X Hearing Instrument Specialist Speech, Language and Hearing Service Providers · License 03284 (OH) 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

How do I verify Tom Groszko's NPI record?

Cross-check NPI 1124518790 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1124518790 active?

Yes, as of the latest NPPES snapshot, NPI 1124518790 is active (record last updated 2018-05-18).

Other providers at this practice address

Browse all →

Laura Church Audiologist-Hearing Aid Fitter · Kettering, OH NPI 1366486169 Jeffrey Vehr Audiologist-Hearing Aid Fitter · Dayton, OH NPI 1205193190 Jeffrey P Vehr Company , Ltd Audiologist · Dayton, OH NPI 1093119562

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-18.