Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Monica Marciniak-Gross, BA

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1184820656

Mrs. Monica Marciniak-Gross, BA is an Addiction (Substance Use Disorder) Counselor in Rialto, California. Practices as a sole proprietor. Registered with an NPI since 2007.

In the registry since
2007
Specialties on file
2
What do these letters mean?
BA — Bachelor of Arts
An undergraduate arts degree.

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Practice location Address checks out

850 E Foothill Blvd
Rialto, CA 92376-5230
Phone: (909) 421-9465
Fax: (909) 421-9457
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X

Record details

NPI number1184820656
Entity typeIndividual (Type 1)
GenderFemale
Credentials BA
Sole proprietorYes
NPI enumeratedJune 22, 2007
Last updated in NPPESSeptember 11, 2025

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