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Gregory Matsumoto, PSY.D.
NPI 1295753341 · Clinical Psychologist · Napa, CA
Gregory Matsumoto, PSY.D. is a Clinical Psychologist provider in Napa, CA (NPI 1295753341).
Provider details
- NPI number
- 1295753341
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY10963 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
2180 Jefferson St Ste 209
Napa, CA 94559-1250
Phone: (707) 252-7811
Street-level locationGet directions
Mailing address
2180 Jefferson St Ste 209
Napa, CA 94559-1250
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gregory Matsumoto's NPI number?
- Gregory Matsumoto's National Provider Identifier (NPI) is 1295753341, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Matsumoto's specialty?
- Gregory Matsumoto is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Gregory Matsumoto located?
- Gregory Matsumoto's practice location on file with NPPES is 2180 Jefferson St Ste 209, Napa, CA 94559-1250.
- What is Gregory Matsumoto's phone number?
- The practice phone number listed in the NPPES registry for Gregory Matsumoto is (707) 252-7811.
- Is Gregory Matsumoto's NPI active?
- Yes — Gregory Matsumoto's NPI (1295753341) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.