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

ELIZABETH MARQUARDT SLP
NPI 1417844903
Speech-Language Pathologist in Houston, TX

Q: What is Elizabeth Marquardt's NPI number?

The NPI number for Elizabeth Marquardt is 1417844903. It was assigned to this individual provider in the NPPES registry on June 18, 2025.

Q: What is Elizabeth Marquardt's specialty?

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

Active since June 18, 2025

3100 SHENANDOAH ST, HOUSTON, TX 77021(713) 523-3633 Get Directions Write a Review

NPPES record last updated: July 22, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 22, 2026, Jun 18, 2025 (2 updates tracked since 2025).

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About Elizabeth Marquardt Slp NPPES

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

ELIZABETH MARQUARDT SLP (NPI 1417844903) is an individual speech-language pathologist provider in Houston, Texas, licensed in Texas (122375) and active in the NPI registry since June 2025. She maintains a secondary practice location in Stafford.

NPPES Registry Identity

NPI1417844903

Entity TypeIndividualFemale

Primary Taxonomy235Z00000X

Provider Legal NameELIZABETH MARQUARDTCredential: SLP

Location Address3100 SHENANDOAH STHouston, TX 77021-1042

Mailing Address3100 Shenandoah StHouston, TX 77021-1042 · (713) 523-3633 · Fax (713) 523-8399

Phone(713) 523-3633

Sole ProprietorNo

Enumeration DateJune 18, 2025

Last NPPES UpdateJuly 22, 20262 updates tracked since enumeration

NPPES CertifiedJuly 22, 2026

✔ NPI 1417844903 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 TX · 122375

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.

3100 SHENANDOAH ST, Houston, TX 77021

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Secondary Practice Location 1

Location 112300 Parc Crest Dr Ste 166Stafford, TX 77477-2419 · Phone (713) 523-3633 · Fax (713) 523-8399

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.

KATHERINE WILSON AUD

Audiologist