Individual provider · Type 1 NPI

Heather Dawn Onishea, CASAC-T

Addiction (Substance Use Disorder) Counselor · Brentwood, NY

NPI number 1831038355 Active

Practice location

400 Crooked Hill Rd
Brentwood, NY 11717-1039

Call (631) 231-3232 Map

Mailing address

832 Udall Rd
West Islip, NY 11795-1405

Specialties and licenses

TaxonomyCodeLicense
Addiction (Substance Use Disorder) Counselor Primary 101YA0400X40559 (NY)

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

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About NPI 1831038355

Heather Dawn Onishea, CASAC-T's National Provider Identifier is 1831038355, issued on Mar 27, 2026. The primary taxonomy on file is Addiction (Substance Use Disorder) Counselor (101YA0400X), and the practice location is in Brentwood, NY. The record was last updated on Mar 27, 2026.