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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CORINNE O'BRIEN
NPI 1487276440
Counselor - Addiction (Substance Use Disorder) in San Mateo, CA

Active since May 13, 2020
202 E BELLEVUE AVE, SAN MATEO, CA 94401(650) 343-8401 Get Directions Write a Review

NPPES record last updated: October 21, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Corinne O'brien NPPES

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

CORINNE O'BRIEN (NPI 1487276440) is an individual addiction (substance use disorder) provider in San Mateo, California and active in the NPI registry since May 2020.

NPPES Registry Identity

NPI1487276440
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameCORINNE O'BRIEN
Location Address202 E BELLEVUE AVESan Mateo, CA 94401-2305
Mailing Address202 E Bellevue AveSan Mateo, CA 94401-2305 · (650) 343-8801
Phone(650) 343-8401
Sole ProprietorYes
Enumeration DateMay 13, 2020
Last NPPES UpdateOctober 21, 2026
NPPES CertifiedOctober 21, 2026
✔ NPI 1487276440 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
202 E BELLEVUE AVE, San Mateo, CA 94401
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Other Providers at the Same Location NPPES 14

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

NIKHITA RAJESH PULIKKAL
Counselor (Mental Health)
202 E BELLEVUE AVE
SAN MATEO, CA 94401
San Mateo County (650) 343-8401
JENNIFER M LOPEZ
Counselor (Addiction (Substance Use Disorder))
202 E BELLEVUE AVE
SAN MATEO, CA 94401
San Mateo County (650) 947-8808
JAMES JOSEPH OGDEN
Counselor (Addiction (Substance Use Disorder))
202 E BELLEVUE AVE
SAN MATEO, CA 94401
San Mateo County (510) 295-2698
MISS CHRISTINE ERIN SEAGREN
Counselor (Addiction (Substance Use Disorder))
202 E BELLEVUE AVE
SAN MATEO, CA 94401
San Mateo County (510) 367-5335
HEALTHRIGHT 360
Substance Abuse Rehabilitation Facility
202 E BELLEVUE AVE
SAN MATEO, CA 94401
San Mateo County (650) 348-6603
DAVID PARODI
Counselor (Addiction (Substance Use Disorder))
202 E BELLEVUE AVE
SAN MATEO, CA 94401
San Mateo County (650) 343-8401
CARMATELENTINA GARDE MORALES
Counselor (Addiction (Substance Use Disorder))
202 E BELLEVUE AVE
SAN MATEO, CA 94401
San Mateo County (650) 343-8401
HANNAH LILLIBRIDGE
Student in an Organized Health Care Education/Training Program
202 E BELLEVUE AVE
SAN MATEO, CA 94401
San Mateo County (650) 343-8401

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 Corinne O'brien's NPI number?

The NPI number for Corinne O'brien is 1487276440. It was assigned to this individual provider in the NPPES registry on May 13, 2020.

Where is Corinne O'brien located?

Corinne O'brien practices at 202 E Bellevue Ave, San Mateo, CA 94401. The listed phone number is (650) 343-8401.

What is Corinne O'brien's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Corinne O'brien was last updated on October 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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.