Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MARY J O'CONNOR PHD
NPI 1245265792
Psychologist - Clinical in Los Angeles, CA

Active since July 12, 2006
300 MEDICAL PLZ, LOS ANGELES, CA 90095(310) 825-9989 Get Directions Write a Review

NPPES record last updated: July 19, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 19, 2026, Aug 8, 2024 (2 updates tracked since 2024).

About Mary J O'connor Phd NPPES

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

MARY J O'CONNOR PHD (NPI 1245265792) is an individual clinical provider in Los Angeles, California, licensed in California (PSY6859) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1245265792
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameMARY J O'CONNORCredential: PHD
Location Address300 MEDICAL PLZLos Angeles, CA 90095-0001
Mailing AddressFile 2939Los Angeles, CA 90074-0001
Sole ProprietorNo
Enumeration DateJuly 12, 2006
Last NPPES UpdateJuly 19, 20262 updates tracked since enumeration
NPPES CertifiedAugust 8, 2024
NPI 1245265792 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License Licensed in CA · PSY6859
Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

Also ListedPsychologistTaxonomy 103T00000X · License PSY6859 (CA)
300 MEDICAL PLZ, Los Angeles, CA 90095

Other Identifiers 1

OtherPSY068590CA · Medi Cal

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.

Physician Assistant (Surgical)
300 MEDICAL PLZ, STE 400
LOS ANGELES, CA 90095
Psychologist
300 MEDICAL PLZ
LOS ANGELES, CA 90095
Psychiatry & Neurology (Neurology)
300 MEDICAL PLZ, SUITE B200
LOS ANGELES, CA 90095
Psychologist (Adult Development & Aging)
300 MEDICAL PLZ
LOS ANGELES, CA 90095
Physical Therapist
300 MEDICAL PLZ, SUITE B200
LOS ANGELES, CA 90095
Neurological Surgery
300 MEDICAL PLZ, #200
LOS ANGELES, CA 90095
Psychiatry & Neurology (Neurology)
300 MEDICAL PLZ, SUITE B-200
LOS ANGELES, CA 90095
Neurological Surgery
300 MEDICAL PLZ, #200
LOS ANGELES, CA 90095

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 Mary O'connor's NPI number?

The NPI number for Mary O'connor is 1245265792. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Where is Mary O'connor located?

Mary O'connor practices at 300 Medical Plz, Los Angeles, CA 90095. The listed phone number is (310) 825-9989.

What is Mary O'connor's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Mary O'connor was last updated on July 19, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.