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

Jeff Westermann

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1598267197

Jeff Westermann is an Addiction (Substance Use Disorder) Counselor in Fairfield, California. Licensed in California. Registered with an NPI since 2018.

Licensed in
CA
In the registry since
2018

Practice location Address checks out

609 Jefferson St
Fairfield, CA 94533-6293
Phone: (707) 399-9190
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 24372 (CA)

Record details

NPI number1598267197
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedFebruary 28, 2018
Last updated in NPPESMay 5, 2026
Certification dateMay 5, 2026
Mailing address824 Granada Ln, Vacaville, CA 95688-2041

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