Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Corinne O'Brien

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1487276440

Corinne O'Brien is an Addiction (Substance Use Disorder) Counselor in San Mateo, California. Practices as a sole proprietor. Registered with an NPI since 2020.

In the registry since
2020

Practice location Address checks out

202 E Bellevue Ave
San Mateo, CA 94401-2305
Phone: (650) 343-8401
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X

Record details

NPI number1487276440
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedMay 13, 2020
Last updated in NPPESOctober 21, 2026
Certification dateOctober 21, 2026

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