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Gavin O'Neill

Addiction (Substance Use Disorder) Counselor in Oakland, CA · enumerated 2018 · practices at Superior Court of Ca, Alameda County.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1376033159

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Registry record

Entity type Individual (Type 1)
Name Gavin O'Neill
Sex Male
Practice address 661 Washington St Rm 223, Oakland, CA, 94607
Phone (510) 272-1217
Enumeration date May 16, 2018
Last updated in NPPES May 16, 2018

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Gavin O'Neill practice?
The practice location on file with NPPES is in Oakland, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gavin O'Neill?
The National Provider Identifier (NPI) for Gavin O'Neill is 1376033159, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-16.