IndividualActive
John Leonard, PH.D.
NPI 1336226083 · Clinical Psychologist · Davis, CA
John Leonard, PH.D. is a Clinical Psychologist provider in Davis, CA (NPI 1336226083).
Provider details
- NPI number
- 1336226083
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY12821 (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
2659 Portage Bay E
Suite 204
Davis, CA 95616-3050
Phone: (530) 756-6438
Fax: (530) 419-0774
Street-level locationGet directions
Mailing address
2659 Portage Bay E
Davis, CA 95616-3050
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2013-02-08
Frequently asked questions
- What is John Leonard's NPI number?
- John Leonard's National Provider Identifier (NPI) is 1336226083, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Leonard's specialty?
- John Leonard is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is John Leonard located?
- John Leonard's practice location on file with NPPES is 2659 Portage Bay E, Davis, CA 95616-3050.
- What is John Leonard's phone number?
- The practice phone number listed in the NPPES registry for John Leonard is (530) 756-6438.
- Is John Leonard's NPI active?
- Yes — John Leonard's NPI (1336226083) is active in the NPPES registry as of the last update on 2013-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.