Grant Shimizu
NPI 1164378287 · Marriage & Family Therapist · Pleasant Hill, CA
Grant Shimizu is a Marriage & Family Therapist provider in Pleasant Hill, CA (NPI 1164378287).
Provider details
- NPI number
- 1164378287
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 161492 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
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
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
Mailing address
Registry dates
- Enumerated
- 2026-03-10
- Last updated
- 2026-03-10
- Certified
- 2026-03-10
Frequently asked questions
- What is Grant Shimizu's NPI number?
- Grant Shimizu's National Provider Identifier (NPI) is 1164378287, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grant Shimizu's specialty?
- Grant Shimizu is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Grant Shimizu located?
- Grant Shimizu's practice location on file with NPPES is 3478 Buskirk Ave Ste 260, Pleasant Hill, CA 94523-4358.
- What is Grant Shimizu's phone number?
- The practice phone number listed in the NPPES registry for Grant Shimizu is (925) 943-1794.
- Is Grant Shimizu's NPI active?
- Yes — Grant Shimizu's NPI (1164378287) is active in the NPPES registry as of the last update on 2026-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.