IndividualActive
Joy Hei Matthew Lai
NPI 1215813340 · School Psychologist · Vallejo, CA
Joy Hei Matthew Lai is a School Psychologist provider in Vallejo, CA (NPI 1215813340).
Provider details
- NPI number
- 1215813340
- Entity type
- Individual
- Primary specialty
- School PsychologistBehavioral Health & Social Service Providers
- Sex
- Male
- 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
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
665 Walnut Ave
Vallejo, CA 94592-1177
Phone: (707) 556-8921
Street-level locationGet directions
Mailing address
665 Walnut Ave
Vallejo, CA 94592-1177
Registry dates
- Enumerated
- 2025-08-13
- Last updated
- 2025-08-13
- Certified
- 2025-08-13
Frequently asked questions
- What is Joy Hei Matthew Lai's NPI number?
- Joy Hei Matthew Lai's National Provider Identifier (NPI) is 1215813340, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joy Hei Matthew Lai's specialty?
- Joy Hei Matthew Lai is listed in the NPPES registry with a primary specialty of School Psychologist (Behavioral Health & Social Service Providers).
- Where is Joy Hei Matthew Lai located?
- Joy Hei Matthew Lai's practice location on file with NPPES is 665 Walnut Ave, Vallejo, CA 94592-1177.
- What is Joy Hei Matthew Lai's phone number?
- The practice phone number listed in the NPPES registry for Joy Hei Matthew Lai is (707) 556-8921.
- Is Joy Hei Matthew Lai's NPI active?
- Yes — Joy Hei Matthew Lai's NPI (1215813340) is active in the NPPES registry as of the last update on 2025-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.