ISABEL KATHRYN O'BRIEN MS
NPI 1891350716
Speech-Language Pathologist in San Diego, CA

Q: What is Isabel O'brien's NPI number?

The NPI number for Isabel O'brien is 1891350716. It was assigned to this individual provider in the NPPES registry on May 6, 2019.

Q: What is Isabel O'brien'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 Isabel O'brien was last updated on March 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 May 06, 2019

4100 NORMAL ST, SAN DIEGO, CA 92103(619) 725-5501 Get Directions Write a Review

NPPES record last updated: March 25, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 25, 2026, May 4, 2024, May 6, 2019 (3 updates tracked since 2019).

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About Isabel Kathryn O'brien Ms NPPES

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

ISABEL KATHRYN O'BRIEN MS (NPI 1891350716) is an individual speech-language pathologist provider in San Diego, California, licensed in California (SP36052) and active in the NPI registry since May 2019. She maintains a secondary practice location in San Diego.

NPPES Registry Identity

NPI1891350716

Entity TypeIndividualFemale

Primary Taxonomy235Z00000X

Provider Legal NameISABEL KATHRYN O'BRIENCredential: MS

Location Address4100 NORMAL STSan Diego, CA 92103-2653

Mailing Address4463 Idaho St Apt 13San Diego, CA 92116-5126 · (408) 802-5568

Phone(619) 725-5501

Sole ProprietorNo

Enumeration DateMay 6, 2019

Last NPPES UpdateMarch 25, 20263 updates tracked since enumeration

NPPES CertifiedMarch 25, 2026

✔ NPI 1891350716 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 · SP36052

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.

4100 NORMAL ST, San Diego, CA 92103

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Secondary Practice Location 1

Location 12820 Camino Del Rio S Ste 308San Diego, CA 92108-3824 · Phone (619) 546-0039

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.

KRISTEN MARY BADAL MOTR/L

Occupational Therapist