Sydney Cook
NPI 1073126777 · Marriage & Family Therapist · Fullerton, CA
Sydney Cook is a Marriage & Family Therapist provider in Fullerton, CA (NPI 1073126777).
Provider details
- NPI number
- 1073126777
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 116430 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
5 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
- 2020-08-24
- Last updated
- 2025-10-14
- Certified
- 2025-10-14
Frequently asked questions
- What is Sydney Cook's NPI number?
- Sydney Cook's National Provider Identifier (NPI) is 1073126777, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sydney Cook's specialty?
- Sydney Cook is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Sydney Cook located?
- Sydney Cook's practice location on file with NPPES is 732 Barris Dr, Fullerton, CA 92832-1002.
- What is Sydney Cook's phone number?
- The practice phone number listed in the NPPES registry for Sydney Cook is (714) 447-7715.
- Is Sydney Cook's NPI active?
- Yes — Sydney Cook's NPI (1073126777) is active in the NPPES registry as of the last update on 2025-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.