IndividualActive
Annette Williamson
NPI 1144798505 · Behavior Technician · Hartsdale, NY
Annette Williamson is a Behavior Technician provider in Hartsdale, NY (NPI 1144798505).
Provider details
- NPI number
- 1144798505
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(65/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
234 N Central Ave
Hartsdale, NY 10530-1809
Phone: (914) 529-0035
Street-level locationGet directions
Mailing address
21600 Oxnard St Ste 1800
Woodland Hills, CA 91367-7807
Additional practice locations (1)
- 21600 Oxnard St Ste 1800Woodland Hills, CA 91367-7807Phone: (818) 345-2345
Registry dates
- Enumerated
- 2018-11-04
- Last updated
- 2018-11-04
Frequently asked questions
- What is Annette Williamson's NPI number?
- Annette Williamson's National Provider Identifier (NPI) is 1144798505, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Annette Williamson's specialty?
- Annette Williamson is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Annette Williamson located?
- Annette Williamson's practice location on file with NPPES is 234 N Central Ave, Hartsdale, NY 10530-1809.
- What is Annette Williamson's phone number?
- The practice phone number listed in the NPPES registry for Annette Williamson is (914) 529-0035.
- Is Annette Williamson's NPI active?
- Yes — Annette Williamson's NPI (1144798505) is active in the NPPES registry as of the last update on 2018-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.