IndividualActive
Maddisen Williams
NPI 1407656317 · Behavior Technician · Napa, CA
Maddisen Williams is a Behavior Technician provider in Napa, CA (NPI 1407656317).
Provider details
- NPI number
- 1407656317
- 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
Basic profile(48/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
3419 Valle Verde Dr
Napa, CA 94558-2414
Phone: (707) 299-8250
Fax: (707) 635-8215
Street-level locationGet directions
Mailing address
3419 Valle Verde Dr
Napa, CA 94558-2414
Registry dates
- Enumerated
- 2025-03-18
- Last updated
- 2025-03-18
- Certified
- 2025-03-18
Frequently asked questions
- What is Maddisen Williams's NPI number?
- Maddisen Williams's National Provider Identifier (NPI) is 1407656317, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maddisen Williams's specialty?
- Maddisen Williams is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Maddisen Williams located?
- Maddisen Williams's practice location on file with NPPES is 3419 Valle Verde Dr, Napa, CA 94558-2414.
- What is Maddisen Williams's phone number?
- The practice phone number listed in the NPPES registry for Maddisen Williams is (707) 299-8250.
- Is Maddisen Williams's NPI active?
- Yes — Maddisen Williams's NPI (1407656317) is active in the NPPES registry as of the last update on 2025-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.