Individual provider · Type 1 NPI

Mary Elizabeth Feistner

Addiction (Substance Use Disorder) Counselor · Upland, CA

NPI number 1508499526 Active

Practice location

934 N Mountain Ave Ste A-D
Upland, CA 91786-3659

Specialties and licenses

TaxonomyCodeLicense
Addiction (Substance Use Disorder) Counselor Primary 101YA0400X14645 (CA)

Addiction (Substance Use Disorder) Counselor: Definition to come...

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About NPI 1508499526

Mary Elizabeth Feistner's National Provider Identifier is 1508499526, issued on Feb 18, 2020. The primary taxonomy on file is Addiction (Substance Use Disorder) Counselor (101YA0400X), and the practice location is in Upland, CA. The record was last updated on Dec 10, 2025.