Heather Onishea, CASAC-T
NPI 1831038355 · Addiction (Substance Use Disorder) Counselor · Brentwood, NY
Heather Onishea, CASAC-T is a Addiction (Substance Use Disorder) Counselor provider in Brentwood, NY (NPI 1831038355).
Provider details
- NPI number
- 1831038355
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CASAC-T
- Sex
- Female
- Sole proprietor
- No
- License
- 40559 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2026-03-27
- Last updated
- 2026-03-27
- Certified
- 2026-03-27
Frequently asked questions
- What is Heather Onishea's NPI number?
- Heather Onishea's National Provider Identifier (NPI) is 1831038355, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heather Onishea's specialty?
- Heather Onishea is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Heather Onishea located?
- Heather Onishea's practice location on file with NPPES is 400 Crooked Hill Rd, Brentwood, NY 11717-1039.
- What is Heather Onishea's phone number?
- The practice phone number listed in the NPPES registry for Heather Onishea is (631) 231-3232.
- Is Heather Onishea's NPI active?
- Yes — Heather Onishea's NPI (1831038355) is active in the NPPES registry as of the last update on 2026-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.