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

Jennifer Dethlefsen

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1861808628

Jennifer Dethlefsen is an Addiction (Substance Use Disorder) Counselor in Upland, California. Registered with an NPI since 2014.

In the registry since
2014

Practice location Address checks out

916 N Mountain Ave Ste A
Upland, CA 91786-3697
Phone: (909) 932-1069
Fax: (909) 932-1087
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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 number1861808628
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedJuly 1, 2014
Last updated in NPPESJuly 1, 2014
Mailing address916 N Mountain Ave, Suite A, Upland, CA 91786-3697

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