IndividualActive
Seth Thomas
NPI 1821457961 · Behavior Analyst · San Mateo, CA
Seth Thomas is a Behavior Analyst provider in San Mateo, CA (NPI 1821457961).
Provider details
- NPI number
- 1821457961
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(66/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
424 Peninsula Ave
San Mateo, CA 94401-1653
Phone: (650) 286-4396
Street-level locationGet directions
Mailing address
5635 Springhouse Dr
Pleasanton, CA 94588-4071
Registry dates
- Enumerated
- 2016-02-17
- Last updated
- 2016-02-17
Frequently asked questions
- What is Seth Thomas's NPI number?
- Seth Thomas's National Provider Identifier (NPI) is 1821457961, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Seth Thomas's specialty?
- Seth Thomas is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Seth Thomas located?
- Seth Thomas's practice location on file with NPPES is 424 Peninsula Ave, San Mateo, CA 94401-1653.
- What is Seth Thomas's phone number?
- The practice phone number listed in the NPPES registry for Seth Thomas is (650) 286-4396.
- Is Seth Thomas's NPI active?
- Yes — Seth Thomas's NPI (1821457961) is active in the NPPES registry as of the last update on 2016-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.