CAROL SIEM MS, CCC-SLP
NPI 1548551773
Speech-Language Pathologist in Los Angeles, CA

Q: What is Carol Siem's NPI number?

The NPI number for Carol Siem is 1548551773. It was assigned to this individual provider in the NPPES registry on April 21, 2011.

Q: What is Carol Siem's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Carol Siem was last updated on May 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 April 21, 2011

333 S BEAUDRY AVE, LOS ANGELES, CA 90017(213) 241-0609 Get Directions Write a Review

NPPES record last updated: May 20, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 20, 2026, Dec 6, 2023 (2 updates tracked since 2023).

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About Carol Siem Ms, Ccc-slp NPPES

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

CAROL SIEM MS, CCC-SLP (NPI 1548551773) is an individual speech-language pathologist provider in Los Angeles, California, licensed in California (13863) and active in the NPI registry since April 2011. She maintains a secondary practice location in Van Nuys.

NPPES Registry Identity

NPI1548551773

Entity TypeIndividualFemale

Primary Taxonomy235Z00000X

Provider Legal NameCAROL SIEMCredential: MS, CCC-SLP

Location Address333 S BEAUDRY AVELos Angeles, CA 90017-1466

Mailing Address15523 Cohasset StVan Nuys, CA 91406-3305 · (818) 984-3224

Phone(213) 241-0609

Sole ProprietorYes

Enumeration DateApril 21, 2011

Last NPPES UpdateMay 20, 20262 updates tracked since enumeration

NPPES CertifiedMay 20, 2026

✔ NPI 1548551773 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 · 13863

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.

333 S BEAUDRY AVE, Los Angeles, CA 90017

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Secondary Practice Location 1

Location 115523 Cohasset StVan Nuys, CA 91406-3305 · Phone (818) 984-3224

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.

KATHY ESTRADA MONTES LCSW

Social Worker (Clinical)