Sydney Cook, RADTI
NPI 1215826771 · Addiction (Substance Use Disorder) Counselor · Grass Valley, CA
Sydney Cook, RADTI is a Addiction (Substance Use Disorder) Counselor provider in Grass Valley, CA (NPI 1215826771).
Provider details
- NPI number
- 1215826771
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- RADTI
- Sex
- Female
- Sole proprietor
- No
- License
- R1618490625 (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
Under 1 yr in 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
- 2025-06-30
- Last updated
- 2025-06-30
- Certified
- 2025-06-30
Frequently asked questions
- What is Sydney Cook's NPI number?
- Sydney Cook's National Provider Identifier (NPI) is 1215826771, 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 Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Sydney Cook located?
- Sydney Cook's practice location on file with NPPES is 159 Brentwood Dr, Grass Valley, CA 95945-5703.
- What is Sydney Cook's phone number?
- The practice phone number listed in the NPPES registry for Sydney Cook is (530) 460-4082.
- Is Sydney Cook's NPI active?
- Yes — Sydney Cook's NPI (1215826771) is active in the NPPES registry as of the last update on 2025-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.