IndividualActive
William Waddell
NPI 1821960915 · Behavior Technician · Hayward, CA
William Waddell is a Behavior Technician provider in Hayward, CA (NPI 1821960915).
Provider details
- NPI number
- 1821960915
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Basic profile(47/100 index)
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
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
1290 B St Ste 310
Hayward, CA 94541-2967
Phone: (877) 264-6747
Street-level locationGet directions
Mailing address
295 89th St Ste 306
Daly City, CA 94015-1656
Registry dates
- Enumerated
- 2025-09-19
- Last updated
- 2025-09-19
- Certified
- 2025-09-19
Frequently asked questions
- What is William Waddell's NPI number?
- William Waddell's National Provider Identifier (NPI) is 1821960915, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Waddell's specialty?
- William Waddell is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is William Waddell located?
- William Waddell's practice location on file with NPPES is 1290 B St Ste 310, Hayward, CA 94541-2967.
- What is William Waddell's phone number?
- The practice phone number listed in the NPPES registry for William Waddell is (877) 264-6747.
- Is William Waddell's NPI active?
- Yes — William Waddell's NPI (1821960915) is active in the NPPES registry as of the last update on 2025-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.