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

Anthony Joseph Mascarenas

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1134356538

Anthony Joseph Mascarenas is an Addiction (Substance Use Disorder) Counselor in San Leandro, California. Practices as a sole proprietor. Registered with an NPI since 2009.

In the registry since
2009

Practice location Address checks out

2035 Fairmont Dr
San Leandro, CA 94578-1088
Phone: (510) 346-7939
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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 number1134356538
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedJune 12, 2009
Last updated in NPPESJune 12, 2009

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