1. Home
  2. Directory
  3. California
  4. Torrance
  5. Speech Language Pathologist
  6. NPI Profile

MS. MARIANNE O'BRIEN MA SLP
NPI 1083071633
Speech-Language Pathologist in Torrance, CA

Active since January 26, 2016
23639 HAWTHORNE BLVD, SUITE 201, TORRANCE, CA 90505(424) 201-1631(310) 375-7375 Get Directions Write a Review

NPPES record last updated: January 26, 2016. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Ms. Marianne O'brien Ma Slp NPPES

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

MS. MARIANNE O'BRIEN MA SLP (NPI 1083071633) is an individual speech-language pathologist provider in Torrance, California, licensed in California (SP4849) and active in the NPI registry since January 2016.

NPPES Registry Identity

NPI1083071633
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameMS. MARIANNE O'BRIENCredential: MA SLP
Location Address23639 HAWTHORNE BLVD, SUITE 201Torrance, CA 90505-5930
Mailing Address23639 Hawthorne Blvd, Suite 201Torrance, CA 90505-5930 · (424) 201-1631 · Fax (310) 375-7375
Phone(424) 201-1631
Fax(310) 375-7375
Sole ProprietorNo
Enumeration DateJanuary 26, 2016
✔ NPI 1083071633 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 · SP4849
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.
23639 HAWTHORNE BLVD, Torrance, CA 90505
Open in Google Maps ↗

Other Providers at the Same Location NPPES 11

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

HOLT CONSULTING
Clinic/Center (Mental Health (Including Community Mental Health Center))
23639 HAWTHORNE BLVD, 201
TORRANCE, CA 90505
Los Angeles County (310) 373-3420
DR. AZHAR MUTTALIB M.D.
Internal Medicine
23639 HAWTHORNE BLVD, SUITE 102
TORRANCE, CA 90505
Los Angeles County (310) 373-9980
SHERYL MADDOX
Hearing Instrument Specialist
23639 HAWTHORNE BLVD, SUITE #103
TORRANCE, CA 90505
Los Angeles County (310) 378-7474
DR. MICHAEL LUM D.O.
Family Medicine
23639 HAWTHORNE BLVD, SUITE 300
TORRANCE, CA 90505
Los Angeles County (310) 375-9595
LUMIER MEDICAL INC.
Family Medicine
23639 HAWTHORNE BLVD, SUITE 300
TORRANCE, CA 90505
Los Angeles County (310) 375-9595
DR. MADHU CHATWANI M.D.
Internal Medicine
23639 HAWTHORNE BLVD, SUITE 102
TORRANCE, CA 90505
Los Angeles County (310) 373-9980
WASIMA MASOODI MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
23639 HAWTHORNE BLVD, SUITE 102
TORRANCE, CA 90505
Los Angeles County (310) 373-9980
DR. DEANNA L. GUERRERO PH.D.
Psychologist (Clinical)
23639 HAWTHORNE BLVD, SUITE 201
TORRANCE, CA 90505
Los Angeles County (310) 373-3420

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 Marianne O'brien's NPI number?

The NPI number for Marianne O'brien is 1083071633. It was assigned to this individual provider in the NPPES registry on January 26, 2016.

Where is Marianne O'brien located?

Marianne O'brien practices at 23639 Hawthorne Blvd Suite 201, Torrance, CA 90505. The listed phone number is (424) 201-1631.

What is Marianne O'brien'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 Marianne O'brien was last updated on January 26, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.