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MS. DONNA RENEE WILLIAMS MSW
NPI 1083815682
Social Worker - Clinical in Oakland, CA

Active since May 30, 2007PECOS Enrolled
7200 BANCROFT AVE STE 125A, OAKLAND, CA 94605(510) 777-3812(510) 777-3806 Get Directions Write a Review

NPPES record last updated: July 12, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Ms. Donna Renee Williams Msw NPPES

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

MS. DONNA RENEE WILLIAMS MSW (NPI 1083815682) is an individual clinical provider in Oakland, California, licensed in California (89444) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1083815682
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. DONNA RENEE WILLIAMSCredential: MSW
Location Address7200 BANCROFT AVE STE 125AOakland, CA 94605-2457
Mailing Address4821 Webster St. #2Oakland, CA 94609 · (510) 467-7955
Phone(510) 777-3812
Fax(510) 777-3806
Sole ProprietorNo
Enumeration DateMay 30, 2007
Last NPPES UpdateJuly 12, 2019
✔ NPI 1083815682 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 · 89444
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.
7200 BANCROFT AVE STE 125A, Oakland, CA 94605
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Other Names 1

Professional Name (2)Donna Renee Ryan Lcsw

Other Identifiers 1

Other1041C0700XCA · Medicare

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Donna Renee Williams Msw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Donna Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

County Of Alameda
Same address
Community/Behavioral Health
7200 BANCROFT AVE STE 202
Oakland, CA 94605
  • Reassigned Medicare billing, California enrollment
  • 50 clinicians in this Medicare group
NPI 1164273553 (510) 777-3800

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94605 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $69.00 – $202.35
Typical copayment $0.00 (range $17.25 – $50.58)
Most-billed visit code NA
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

MR. JOHN REED SEIDEN MSW
Social Worker (Clinical)
7200 BANCROFT AVE STE 125A
OAKLAND, CA 94605
Alameda County (510) 777-3830
MRS. TIFFANY TIKEUNA OROZCO LCSW
Social Worker (Clinical)
7200 BANCROFT AVE STE 125A
OAKLAND, CA 94605
Alameda County (510) 777-3832
VANESSA JENNINGS
Counselor (Mental Health)
7200 BANCROFT AVE STE 125A
OAKLAND, CA 94605
Alameda County (510) 981-4100
RENIKIA BROWN MSW
Social Worker (Clinical)
7200 BANCROFT AVE STE 125A
OAKLAND, CA 94605
Alameda County (510) 777-3800
MS. TIFFANY LUCERO
Social Worker (Clinical)
7200 BANCROFT AVE STE 125A
OAKLAND, CA 94605
Alameda County (510) 777-3812
DR. JOHN ANTHONY BRIM M.D.
Psychiatry & Neurology (Psychiatry)
7200 BANCROFT AVE STE 125A
OAKLAND, CA 94605
Alameda County (510) 777-3800
ERIC SARB
Student in an Organized Health Care Education/Training Program
7200 BANCROFT AVE STE 125A
OAKLAND, CA 94605
Alameda County (510) 383-5005
THEODORE FRANKFORT LCSW
Social Worker
7200 BANCROFT AVE STE 125A
OAKLAND, CA 94605
Alameda County (510) 777-3816

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 Donna Williams's NPI number?

The NPI number for Donna Williams is 1083815682. It was assigned to this individual provider in the NPPES registry on May 30, 2007. The provider is also known as Donna Renee Ryan Lcsw.

Where is Donna Williams located?

Donna Williams practices at 7200 Bancroft Ave Ste 125A, Oakland, CA 94605. The listed phone number is (510) 777-3812.

What is Donna Williams's specialty?

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

Is Donna Williams enrolled in Medicare?

Yes. Donna Williams is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Donna Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Donna Williams reassigns Medicare benefits to County Of Alameda (Oakland, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Donna Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Donna Williams was last updated on July 12, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.