IndividualActive
Diane Sommers, PH.D.
NPI 1801940994 · Psychologist · Davis, CA
Diane Sommers, PH.D. is a Psychologist provider in Davis, CA (NPI 1801940994).
Provider details
- NPI number
- 1801940994
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY15374 (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
1260 Lake Blvd
Suite 217
Davis, CA 95616-2614
Phone: (530) 297-7757
Fax: (530) 756-4896
Street-level locationGet directions
Mailing address
25665 County Road 99
Davis, CA 95616-9504
Registry dates
- Enumerated
- 2007-01-23
- Last updated
- 2007-07-08
Frequently asked questions
- What is Diane Sommers's NPI number?
- Diane Sommers's National Provider Identifier (NPI) is 1801940994, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Sommers's specialty?
- Diane Sommers is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Diane Sommers located?
- Diane Sommers's practice location on file with NPPES is 1260 Lake Blvd, Davis, CA 95616-2614.
- What is Diane Sommers's phone number?
- The practice phone number listed in the NPPES registry for Diane Sommers is (530) 297-7757.
- Is Diane Sommers's NPI active?
- Yes — Diane Sommers's NPI (1801940994) 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.