SYDNEY ELIZABETH FERRIS WILLIAMS A.S.W.
NPI 1114223989
Social Worker - Clinical in Oakland, CA

Active since January 26, 2011
1800 HARRISON ST FL 7, OAKLAND, CA 94612(510) 625-2856(877) 738-4262 Get Directions Write a Review

NPPES record last updated: January 11, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 11, 2022, Dec 20, 2021 (2 updates tracked since 2021).

About Sydney Elizabeth Ferris Williams A.s.w. NPPES

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

SYDNEY ELIZABETH FERRIS WILLIAMS A.S.W. (NPI 1114223989) is an individual clinical provider in Oakland, California, licensed in California (ASW27532) and active in the NPI registry since January 2011.

NPPES Registry Identity

NPI1114223989
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameSYDNEY ELIZABETH FERRIS WILLIAMSCredential: A.S.W.
Location Address1800 HARRISON ST FL 7Oakland, CA 94612-3466
Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3466 · (510) 625-2856 · Fax (877) 738-4262
Fax(877) 738-4262
Sole ProprietorNo
Enumeration DateJanuary 26, 2011
Last NPPES UpdateJanuary 11, 20222 updates tracked since enumeration
NPPES CertifiedDecember 20, 2021
NPI 1114223989 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License Licensed in CA · ASW27532
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
1800 HARRISON ST FL 7, Oakland, CA 94612

Other Names 1

Other Name (5)Sydney E Ferris

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.

Orthopaedic Surgery (Hand Surgery)
1800 HARRISON ST FL 7
OAKLAND, CA 94612
Family Medicine
1800 HARRISON ST FL 7
OAKLAND, CA 94612
Hospitalist
1800 HARRISON ST FL 7
OAKLAND, CA 94612
Nurse Anesthetist, Certified Registered
1800 HARRISON ST FL 7
OAKLAND, CA 94612
Internal Medicine
1800 HARRISON ST FL 7
OAKLAND, CA 94612
Social Worker
1800 HARRISON ST FL 7
OAKLAND, CA 94612
Surgery
1800 HARRISON ST FL 7
OAKLAND, CA 94612
Preventive Medicine (Occupational Medicine)
1800 HARRISON ST FL 7
OAKLAND, CA 94612

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 Ferris Williams's NPI number?

The NPI number for Sydney Ferris Williams is 1114223989. It was assigned to this individual provider in the NPPES registry on January 26, 2011. The provider is also known as Sydney E Ferris.

Where is Sydney Ferris Williams located?

Sydney Ferris Williams practices at 1800 Harrison St Fl 7, Oakland, CA 94612. The listed phone number is (510) 625-2856.

What is Sydney Ferris Williams's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Sydney Ferris Williams was last updated on January 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.