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SYDNEY COOK RADTI
NPI 1215826771
Counselor - Addiction (Substance Use Disorder) in Grass Valley, CA

Active since June 30, 2025
159 BRENTWOOD DR, GRASS VALLEY, CA 95945(530) 460-4082 Get Directions Write a Review

NPPES record last updated: June 30, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Sydney Cook Radti NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SYDNEY COOK RADTI (NPI 1215826771) is an individual addiction (substance use disorder) provider in Grass Valley, California, licensed in California (R1618490625) and active in the NPI registry since June 2025.

NPPES Registry Identity

NPI1215826771
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameSYDNEY COOKCredential: RADTI
Location Address159 BRENTWOOD DRGrass Valley, CA 95945-5703
Mailing Address159 Brentwood DrGrass Valley, CA 95945-5703 · (530) 460-4082
Phone(530) 460-4082
Sole ProprietorNo
Enumeration DateJune 30, 2025
NPPES CertifiedJune 30, 2025
✔ NPI 1215826771 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
License✔ Licensed in CA · R1618490625
159 BRENTWOOD DR, Grass Valley, CA 95945
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KENNETH WISEMAN
Counselor (Addiction (Substance Use Disorder))
159 BRENTWOOD DR
GRASS VALLEY, CA 95945
Nevada County (530) 460-4083
SAVANNAH M WALKER
Counselor (Addiction (Substance Use Disorder))
159 BRENTWOOD DR
GRASS VALLEY, CA 95945
Nevada County (530) 271-1140
SAMANTHA E SMITH RADT
Counselor (Addiction (Substance Use Disorder))
159 BRENTWOOD DR
GRASS VALLEY, CA 95945
Nevada County (530) 271-1140
SOFIA M DEGRUCCIO
Technician
159 BRENTWOOD DR
GRASS VALLEY, CA 95945
Nevada County (530) 273-1140
ANDREA FIGUEROA RADT
Counselor (Addiction (Substance Use Disorder))
159 BRENTWOOD DR
GRASS VALLEY, CA 95945
Nevada County (530) 273-9541
PHILLIP KRULISKY RADT
Counselor (Addiction (Substance Use Disorder))
159 BRENTWOOD DR
GRASS VALLEY, CA 95945
Nevada County (530) 878-5166
AMY JOHNSON
Counselor
159 BRENTWOOD DR
GRASS VALLEY, CA 95945
Nevada County (530) 271-1140
JESSICA ESCOBEDO
Counselor (Addiction (Substance Use Disorder))
159 BRENTWOOD DR
GRASS VALLEY, CA 95945
Nevada County (530) 271-1140

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sydney Cook's NPI number?

The NPI number for Sydney Cook is 1215826771. It was assigned to this individual provider in the NPPES registry on June 30, 2025.

Where is Sydney Cook located?

Sydney Cook practices at 159 Brentwood Dr, Grass Valley, CA 95945. The listed phone number is (530) 460-4082.

What is Sydney Cook's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Sydney Cook was last updated on June 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.