JULIE DIANE HARTZ M.S.
NPI 1184785339
Audiologist-Hearing Aid Fitter in Santa Rosa, CA

Q: What is Julie Hartz's NPI number?

The NPI number for Julie Hartz is 1184785339. It was assigned to this individual provider in the NPPES registry on December 12, 2006.

Q: What is Julie Hartz's specialty?

The primary specialty registered for this NPI is Audiologist-Hearing Aid Fitter with taxonomy code 237600000X.

Q: When was this NPI record last updated?

The NPPES record for Julie Hartz was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.

Active since December 12, 2006

3333 MENDOCINO AVE STE 240, SANTA ROSA, CA 95403(707) 566-5201(707) 566-5203 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Julie Diane Hartz M.s. NPPES

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

JULIE DIANE HARTZ M.S. (NPI 1184785339) is an individual audiologist-hearing aid fitter provider in Santa Rosa, California, licensed in California (HA2074) and active in the NPI registry since December 2006.

NPPES Registry Identity

NPI1184785339

Entity TypeIndividualFemale

Primary Taxonomy237600000X

Provider Legal NameJULIE DIANE HARTZCredential: M.S.

Location Address3333 MENDOCINO AVE STE 240Santa Rosa, CA 95403-3631

Mailing Address3333 Mendocino Ave Ste 240Santa Rosa, CA 95403-3631 · (707) 566-5201 · Fax (707) 566-5203

Phone(707) 566-5201

Fax(707) 566-5203

Sole ProprietorNo

Enumeration DateDecember 12, 2006

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1184785339 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAudiologist-Hearing Aid FitterSpeech, Language and Hearing Service Providers

Taxonomy Code237600000X

License✔ Licensed in CA · HA2074

Definition

An audiologist/hearing aid fitter is the professional who specializes in evaluating and treating people with hearing loss, conducts a wide variety of tests to determine the exact nature of an individual's hearing problem, presents a variety of treatment options to patients, dispenses and fits hearing aids, administers tests of balance to evaluate dizziness and provides hearing rehabilitation training. This classification should be used where individuals are licensed as audiologist-hearing aid fitters as opposed to states that license individuals as audiologists.

Also ListedAudiologistTaxonomy 231H00000X · License AU847 (CA)

3333 MENDOCINO AVE STE 240, Santa Rosa, CA 95403

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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 Julie Hartz's NPI number?

The NPI number for Julie Hartz is 1184785339. It was assigned to this individual provider in the NPPES registry on December 12, 2006.

Where is Julie Hartz located?

Julie Hartz practices at 3333 Mendocino Ave Ste 240, Santa Rosa, CA 95403. The listed phone number is (707) 566-5201.

What is Julie Hartz's specialty?

The primary specialty registered for this NPI is Audiologist-Hearing Aid Fitter with taxonomy code 237600000X.

When was this NPI record last updated?

The NPPES record for Julie Hartz was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.