Jana Sonnikson
NPI 1255509865 · Marriage & Family Therapist · Lafayette, CA
Jana Sonnikson is a Marriage & Family Therapist provider in Lafayette, CA (NPI 1255509865).
Provider details
- NPI number
- 1255509865
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 37027 (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
18 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
Mailing address
Registry dates
- Enumerated
- 2008-02-16
- Last updated
- 2008-02-16
Frequently asked questions
- What is Jana Sonnikson's NPI number?
- Jana Sonnikson's National Provider Identifier (NPI) is 1255509865, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jana Sonnikson's specialty?
- Jana Sonnikson is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Jana Sonnikson located?
- Jana Sonnikson's practice location on file with NPPES is 1064 Dolores Dr, Lafayette, CA 94549-2908.
- What is Jana Sonnikson's phone number?
- The practice phone number listed in the NPPES registry for Jana Sonnikson is (925) 768-9141.
- Is Jana Sonnikson's NPI active?
- Yes — Jana Sonnikson's NPI (1255509865) is active in the NPPES registry as of the last update on 2008-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.