William Segarini-Jeffries
NPI 1457907446 · Behavior Technician · Santa Clara, CA
William Segarini-Jeffries is a Behavior Technician provider in Santa Clara, CA (NPI 1457907446).
Provider details
- NPI number
- 1457907446
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
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
6 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2019-08-14
- Last updated
- 2019-08-16
Frequently asked questions
- What is William Segarini-Jeffries's NPI number?
- William Segarini-Jeffries's National Provider Identifier (NPI) is 1457907446, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Segarini-Jeffries's specialty?
- William Segarini-Jeffries is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is William Segarini-Jeffries located?
- William Segarini-Jeffries's practice location on file with NPPES is 1171 Homestead Rd Ste 250, Santa Clara, CA 95050-5485.
- What is William Segarini-Jeffries's phone number?
- The practice phone number listed in the NPPES registry for William Segarini-Jeffries is (510) 268-8120.
- Is William Segarini-Jeffries's NPI active?
- Yes — William Segarini-Jeffries's NPI (1457907446) is active in the NPPES registry as of the last update on 2019-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.