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

Ruben Stewart

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1265232797

Ruben Stewart is an Addiction (Substance Use Disorder) Counselor in San Leandro, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2025
Specialties on file
2

Practice location Address checks out

2035 Fairmont Dr
San Leandro, CA 94578-1088
Phone: (510) 346-7836
Show map & directions

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

Specialties & licences

Case Manager/Care Coordinator (primary) Taxonomy 171M00000X
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence R1599870225 (CA)

Record details

NPI number1265232797
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedMarch 14, 2025
Last updated in NPPESJune 25, 2025
Certification dateJune 23, 2025

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