IndividualActive
Thomas Guyer
NPI 1316311053 · Clinical Psychologist · San Leandro, CA
Thomas Guyer is a Clinical Psychologist provider in San Leandro, CA (NPI 1316311053).
Provider details
- NPI number
- 1316311053
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- PSY10001721 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(73/100 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
100% 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
2275 Arlington Dr
San Leandro, CA 94578-1132
Phone: (510) 317-1445
Street-level locationGet directions
Mailing address
375 Broadway Apt 2-313
Lynnfield, MA 01940-2382
Registry dates
- Enumerated
- 2015-11-18
- Last updated
- 2026-04-13
- Certified
- 2026-04-13
Frequently asked questions
- What is Thomas Guyer's NPI number?
- Thomas Guyer's National Provider Identifier (NPI) is 1316311053, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Guyer's specialty?
- Thomas Guyer is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Thomas Guyer located?
- Thomas Guyer's practice location on file with NPPES is 2275 Arlington Dr, San Leandro, CA 94578-1132.
- What is Thomas Guyer's phone number?
- The practice phone number listed in the NPPES registry for Thomas Guyer is (510) 317-1445.
- Is Thomas Guyer's NPI active?
- Yes — Thomas Guyer's NPI (1316311053) is active in the NPPES registry as of the last update on 2026-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.