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

Ruby Johnstone

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1326688979

Ruby Johnstone is an Addiction (Substance Use Disorder) Counselor in Ventura, California. Registered with an NPI since 2020.

In the registry since
2020

Practice location Address checks out

334 W Harrison Ave
Ventura, CA 93001-1826
Phone: (805) 256-4993
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

Record details

NPI number1326688979
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedJanuary 12, 2020
Last updated in NPPESJanuary 12, 2020
Certification dateJanuary 12, 2020

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