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

Diane Joiner

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1215651849

Diane Joiner is an Addiction (Substance Use Disorder) Counselor in Redwood City, California. Registered with an NPI since 2022.

In the registry since
2022

Practice location Address checks out

3789 Hoover St
Redwood City, CA 94063-4504
Phone: (650) 363-8735
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 number1215651849
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedSeptember 27, 2022
Last updated in NPPESSeptember 27, 2022
Certification dateSeptember 27, 2022

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