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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.

HEATHER DIEMEL
NPI 1235611369
Specialist/Technologist - Speech-Language Assistant in Union City, CA

Active since September 05, 2018
29516 KOHOUTEK WAY, UNION CITY, CA 94587(626) 200-9628 Get Directions Write a Review

NPPES record last updated: August 12, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 12, 2026, Sep 5, 2018 (2 updates tracked since 2018).

About Heather Diemel NPPES

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

HEATHER DIEMEL (NPI 1235611369) is an individual speech-language assistant in Union City, California, licensed in California (5041) and active in the NPI registry since September 2018.

NPPES Registry Identity

NPI1235611369
Entity TypeIndividualFemale
Primary Taxonomy2355S0801X
Provider Legal NameHEATHER DIEMEL
Location Address29516 KOHOUTEK WAYUnion City, CA 94587-1221
Mailing Address29516 Kohoutek WayUnion City, CA 94587-1221 · (626) 200-9628
Phone(626) 200-9628
Sole ProprietorNo
Enumeration DateSeptember 5, 2018
Last NPPES UpdateAugust 12, 20262 updates tracked since enumeration
NPPES CertifiedAugust 12, 2026
✔ NPI 1235611369 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialist/Technologist · Speech-Language AssistantSpeech, Language and Hearing Service Providers
Taxonomy Code2355S0801X
License✔ Licensed in CA · 5041
29516 KOHOUTEK WAY, Union City, CA 94587
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Other Providers at the Same Location NPPES 20

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

KATHLEEN OSIO OTR/L
Occupational Therapist
29516 KOHOUTEK WAY
UNION CITY, CA 94587
Alameda County (510) 441-8240
CATHERINE LINH HOANG
Occupational Therapist
29516 KOHOUTEK WAY
UNION CITY, CA 94587
Alameda County (510) 441-8240
TRISHA JEAN PARK OTR/L
Occupational Therapist (Pediatrics)
29516 KOHOUTEK WAY
UNION CITY, CA 94587
Alameda County (510) 441-8240
HSIN-JUI TSAI
Speech-Language Pathologist
29516 KOHOUTEK WAY
UNION CITY, CA 94587
Alameda County (510) 909-1271
OLGA CHEKHONINA
Speech-Language Pathologist
29516 KOHOUTEK WAY
UNION CITY, CA 94587
Alameda County (669) 319-9297
MISS MAI LEE
Speech-Language Pathologist
29516 KOHOUTEK WAY
UNION CITY, CA 94587
Alameda County (510) 441-8240
HARMEET KAUR CHAHIL SLPA
Specialist/Technologist (Speech-Language Assistant)
29516 KOHOUTEK WAY
UNION CITY, CA 94587
Alameda County (510) 441-8240
SARA HUMPHREYS
Specialist/Technologist (Speech-Language Assistant)
29516 KOHOUTEK WAY
UNION CITY, CA 94587
Alameda County (510) 441-8240

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 Heather Diemel's NPI number?

The NPI number for Heather Diemel is 1235611369. It was assigned to this individual provider in the NPPES registry on September 5, 2018.

Where is Heather Diemel located?

Heather Diemel practices at 29516 Kohoutek Way, Union City, CA 94587. The listed phone number is (626) 200-9628.

What is Heather Diemel's specialty?

The primary specialty registered for this NPI is Specialist/Technologist, specializing in Speech-Language Assistant, with taxonomy code 2355S0801X.

When was this NPI record last updated?

The NPPES record for Heather Diemel was last updated on August 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.