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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. JOHN DUANE FRANTZ HEARING AID DISPENSE
NPI 1609411339
Hearing Instrument Specialist in Grand Rapids, MI

Active since November 18, 2019
4598 PLAINFIELD AVE NE, GRAND RAPIDS, MI 49525(616) 364-0090 Get Directions Write a Review

NPPES record last updated: July 29, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 29, 2026, Nov 18, 2019 (2 updates tracked since 2019).

About Mr. John Duane Frantz Hearing Aid Dispense NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. JOHN DUANE FRANTZ HEARING AID DISPENSE (NPI 1609411339) is an individual hearing instrument specialist in Grand Rapids, Michigan, licensed in Michigan (3501013979) and active in the NPI registry since November 2019. He maintains a secondary practice location in Battle Creek.

NPPES Registry Identity

NPI1609411339
Entity TypeIndividualMale
Primary Taxonomy237700000X
Provider Legal NameMR. JOHN DUANE FRANTZCredential: HEARING AID DISPENSE
Location Address4598 PLAINFIELD AVE NEGrand Rapids, MI 49525-1645
Mailing Address616 E North StHastings, MI 49058-8613 · (616) 293-1062
Phone(616) 364-0090
Sole ProprietorNo
Enumeration DateNovember 18, 2019
Last NPPES UpdateJuly 29, 20262 updates tracked since enumeration
NPPES CertifiedJuly 29, 2026
✔ NPI 1609411339 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyHearing Instrument SpecialistSpeech, Language and Hearing Service Providers
Taxonomy Code237700000X
License✔ Licensed in MI · 3501013979
Definition
Individuals who test hearing for the selection, adaptation, fitting, adjusting, servicing, and sale of hearing aids. Hearing Instrument Specialist is a designation provided individuals who qualify by the National Hearing Aid Society
4598 PLAINFIELD AVE NE, Grand Rapids, MI 49525
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Secondary Practice Location 1

Location 15475 Beckley Rd Ste 150Battle Creek, MI 49015-4277 · Phone (269) 441-6327 · Fax (269) 441-6329

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MISS KAELYN MURRAY BS
Hearing Instrument Specialist
4598 PLAINFIELD AVE NE
GRAND RAPIDS, MI 49525
Kent County (616) 364-0090
MS. REGINA JO VANDERKLOK BC-HIS
Hearing Instrument Specialist
4598 PLAINFIELD AVE NE
GRAND RAPIDS, MI 49525
Kent County (616) 364-0090

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Frantz's NPI number?

The NPI number for John Frantz is 1609411339. It was assigned to this individual provider in the NPPES registry on November 18, 2019.

Where is John Frantz located?

John Frantz practices at 4598 Plainfield Ave NE, Grand Rapids, MI 49525. The listed phone number is (616) 364-0090.

What is John Frantz's specialty?

The primary specialty registered for this NPI is Hearing Instrument Specialist with taxonomy code 237700000X.

When was this NPI record last updated?

The NPPES record for John Frantz was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.