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

Jennifer Gnass

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1073049284

Jennifer Gnass is an Addiction (Substance Use Disorder) Counselor in Healdsburg, California. Registered with an NPI since 2017.

In the registry since
2017

Practice location Address checks out

536 March Ave
Healdsburg, CA 95448
Phone: (707) 921-6399
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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 number1073049284
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMay 8, 2017
Last updated in NPPESMay 8, 2017
Mailing addressPo Box 410, Fulton, CA 95439-0410