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

Heather Dawn Onishea, CASAC-T

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1831038355

Heather Dawn Onishea, CASAC-T is an Addiction (Substance Use Disorder) Counselor in Brentwood, New York. Licensed in New York. Registered with an NPI since 2026.

Licensed in
NY
In the registry since
2026

Practice location Address checks out

400 Crooked Hill Rd
Brentwood, NY 11717-1039
Phone: (631) 231-3232
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 40559 (NY)

Record details

NPI number1831038355
Entity typeIndividual (Type 1)
GenderFemale
Credentials CASAC-T
Sole proprietorNo
NPI enumeratedMarch 27, 2026
Last updated in NPPESMarch 27, 2026
Certification dateMarch 27, 2026

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