Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Barbara Maestas

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1699005595

Barbara Maestas is an Addiction (Substance Use Disorder) Counselor in Newark, California. Registered with an NPI since 2009.

In the registry since
2009

Practice location Address checks out

6330 Thornton Ave
Newark, CA 94560-3734
Phone: (510) 792-4357
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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 number1699005595
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedDecember 28, 2009
Last updated in NPPESDecember 28, 2009
Mailing address6330 Thornton Ave, Newark, CA 94560-3734

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