IndividualActive
Tiffany Johnson
NPI 1104593771 · School Psychologist · Vallejo, CA
Provider details
- NPI number
- 1104593771
- Entity type
- Individual
- Primary specialty
- School PsychologistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(55/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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
2833 Tennessee St
Vallejo, CA 94591-4948
Phone: (707) 556-8620
Street-level locationGet directions
Mailing address
3093 Broadway Unit 432
Oakland, CA 94611-5791
Registry dates
- Enumerated
- 2021-08-23
- Last updated
- 2021-08-23
- Certified
- 2021-08-23
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.