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

Mary Maffei

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1508067406

Mary Maffei is an Addiction (Substance Use Disorder) Counselor in Hayward, California. Registered with an NPI since 2007.

In the registry since
2007

Practice location Address checks out

107 Jackson St
Hayward, CA 94544-1948
Phone: (510) 886-8696
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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 number1508067406
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMay 29, 2007
Last updated in NPPESJuly 8, 2007

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