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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

PARTHIBARAJAN THIYAGARAJAN
NPI 1831008226
Speech-Language Pathologist in Union City, CA

Active since September 02, 2026
29516 KOHOUTEK WAY, UNION CITY, CA 94587(510) 441-8240 Get Directions Write a Review

NPPES record added: September 2, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

About Parthibarajan Thiyagarajan NPPES

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

PARTHIBARAJAN THIYAGARAJAN (NPI 1831008226) is an individual speech-language pathologist provider in Union City, California, licensed in California (21571) and active in the NPI registry since September 2026.

NPPES Registry Identity

NPI1831008226
Entity TypeIndividualMale
Primary Taxonomy235Z00000X
Provider Legal NamePARTHIBARAJAN THIYAGARAJAN
Location Address29516 KOHOUTEK WAYUnion City, CA 94587-1221
Mailing Address29516 Kohoutek WayUnion City, CA 94587-1221 · (510) 441-8240
Phone(510) 441-8240
Sole ProprietorYes
Enumeration DateSeptember 2, 2026
NPPES CertifiedSeptember 2, 2026
✔ NPI 1831008226 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers
Taxonomy Code235Z00000X
License✔ Licensed in CA · 21571
Definition
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
29516 KOHOUTEK WAY, Union City, CA 94587
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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 Parthibarajan Thiyagarajan's NPI number?

The NPI number for Parthibarajan Thiyagarajan is 1831008226. It was assigned to this individual provider in the NPPES registry on September 2, 2026.

Where is Parthibarajan Thiyagarajan located?

Parthibarajan Thiyagarajan practices at 29516 Kohoutek Way, Union City, CA 94587. The listed phone number is (510) 441-8240.

What is Parthibarajan Thiyagarajan's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

When was this NPI record last updated?

The NPPES record for Parthibarajan Thiyagarajan was last updated on September 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.