SYDNEY LYNEE COOK
NPI 1073126777
Marriage & Family Therapist in Fullerton, CA

Q: What is Sydney Cook's NPI number?

The NPI number for Sydney Cook is 1073126777. It was assigned to this individual provider in the NPPES registry on August 24, 2020.

Q: What is Sydney Cook's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Q: When was this NPI record last updated?

The NPPES record for Sydney Cook was last updated on October 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.

Active since August 24, 2020

732 BARRIS DR, FULLERTON, CA 92832(714) 447-7715 Get Directions Write a Review

NPPES record last updated: October 14, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Nov 25, 2020, Aug 24, 2020 (2 updates tracked since 2020).

On this page

About Sydney Lynee Cook NPPES

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

SYDNEY LYNEE COOK (NPI 1073126777) is an individual marriage & family therapist in Fullerton, California, licensed in California (157750) and active in the NPI registry since August 2020.

NPPES Registry Identity

NPI1073126777

Entity TypeIndividualFemale

Primary Taxonomy106H00000X

Provider Legal NameSYDNEY LYNEE COOK

Location Address732 BARRIS DRFullerton, CA 92832-1002

Mailing Address732 Barris DrFullerton, CA 92832-1002 · (714) 447-7715

Phone(714) 447-7715

Sole ProprietorNo

Enumeration DateAugust 24, 2020

Last NPPES UpdateOctober 14, 20252 updates tracked since enumeration

NPPES CertifiedOctober 14, 2025

✔ NPI 1073126777 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers

Taxonomy Code106H00000X

Licenses✔ Licensed in CA · 157750✔ Licensed in CA · 116430

Definition

A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.

732 BARRIS DR, Fullerton, CA 92832

Open in Google Maps ↗

Other Providers at the Same Location NPPES

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

BRITTNEY CHRISTINA DUQUETTE MS

Psychologist (School)

732 BARRIS DR
FULLERTON, CA 92832

Orange County (714) 447-7715

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 1073126777. It was assigned to this individual provider in the NPPES registry on August 24, 2020.

Where is Sydney Cook located?

Sydney Cook practices at 732 Barris Dr, Fullerton, CA 92832. The listed phone number is (714) 447-7715.

What is Sydney Cook's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

When was this NPI record last updated?

The NPPES record for Sydney Cook was last updated on October 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.