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

Gregg Mazzariello, CCAPPCOUNSELOR

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1316440175

Gregg Mazzariello, CCAPPCOUNSELOR is an Addiction (Substance Use Disorder) Counselor in San Rafael, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2018

Practice location Address checks out

603 D St
San Rafael, CA 94901-3719
Phone: (415) 454-9444
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X · Licence R1289570218 (CA)

Record details

NPI number1316440175
Entity typeIndividual (Type 1)
GenderMale
Credentials CCAPPCOUNSELOR
Sole proprietorYes
NPI enumeratedMarch 16, 2018
Last updated in NPPESMarch 16, 2018

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