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James Geisler, PH.D.
NPI 1679666390 · Clinical Psychologist · Napa, CA
James Geisler, PH.D. is a Clinical Psychologist provider in Napa, CA (NPI 1679666390).
Provider details
- NPI number
- 1679666390
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY5042 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 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
1303 Jefferson St Ste 600a
Napa, CA 94559-2473
Phone: (707) 253-1227
Fax: (707) 257-1473
Street-level locationGet directions
Mailing address
2025 Lone Oak Ave
Napa, CA 94558-4620
Registry dates
- Enumerated
- 2006-10-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Geisler's NPI number?
- James Geisler's National Provider Identifier (NPI) is 1679666390, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Geisler's specialty?
- James Geisler is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is James Geisler located?
- James Geisler's practice location on file with NPPES is 1303 Jefferson St Ste 600a, Napa, CA 94559-2473.
- What is James Geisler's phone number?
- The practice phone number listed in the NPPES registry for James Geisler is (707) 253-1227.
- Is James Geisler's NPI active?
- Yes — James Geisler's NPI (1679666390) 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.