MARY C O'BRIEN L.P.C.
NPI 1194874909
Counselor - Professional in Saint Louis, MO

Active since January 10, 2007
9378 OLIVE BLVD, STE. 317, SAINT LOUIS, MO 63132(314) 994-9344(314) 994-3007 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mary C O'brien L.p.c. NPPES

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

MARY C O'BRIEN L.P.C. (NPI 1194874909) is an individual professional provider in Saint Louis, Missouri, licensed in Missouri (2003032103) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1194874909
Entity TypeIndividualFemale
Primary Taxonomy101YP2500X
Provider Legal NameMARY C O'BRIENCredential: L.P.C.
Location Address9378 OLIVE BLVD, STE. 317Saint Louis, MO 63132-3215
Mailing Address9378 Olive Blvd, Ste. 317Saint Louis, MO 63132-3215 · (314) 994-9344 · Fax (314) 994-3007
Fax(314) 994-3007
Sole ProprietorNo
Enumeration DateJanuary 10, 2007
Last NPPES UpdateJuly 8, 2007
NPI 1194874909 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License Licensed in MO · 2003032103
9378 OLIVE BLVD, Saint Louis, MO 63132

Accepted Insurance

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.

Counselor (Professional)
9378 OLIVE BLVD
SAINT LOUIS, MO 63132
Counselor (Professional)
9378 OLIVE BLVD
OLIVETTE, MO 63132
Counselor (Professional)
9378 OLIVE BLVD, SUITE 314
SAINT LOUIS, MO 63132
Dentist
9378 OLIVE BLVD, SUITE 1LL
OLIVETTE, MO 63132
Social Worker (Clinical)
9378 OLIVE BLVD, STE 317
SAINT LOUIS, MO 63132
Counselor (Mental Health)
9378 OLIVE BLVD, SUITE 318
SAINT LOUIS, MO 63132
Home Health
9378 OLIVE BLVD, SUITE 215
SAINT LOUIS, MO 63132
Counselor (Professional)
9378 OLIVE BLVD, SUETE 317
SAINT LOUIS, MO 63132

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'brien's NPI number?

The NPI number for Mary O'brien is 1194874909. It was assigned to this individual provider in the NPPES registry on January 10, 2007.

Where is Mary O'brien located?

Mary O'brien practices at 9378 Olive Blvd Ste. 317, Saint Louis, MO 63132. The listed phone number is (314) 994-9344.

What is Mary O'brien's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

What insurance does Mary O'brien accept?

Health plans from Medica, Oscar Insurance Company and UnitedHealthcare list Mary O'brien as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mary O'brien was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.