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MS. BRENDA JOY SILLSBURY CADC-II, LCSW
NPI 1164629465
Social Worker - Clinical in Rialto, CA

Active since June 29, 2007PECOS EnrolledAccepts Medicare Assignment
850 E FOOTHILL BLVD, RIALTO, CA 92376(909) 421-9241 Get Directions Write a Review

NPPES record last updated: November 19, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 19, 2024, Dec 23, 2021, Jun 18, 2019 (3 updates tracked since 2019).

About Ms. Brenda Joy Sillsbury Cadc-ii, Lcsw NPPES

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

MS. BRENDA JOY SILLSBURY CADC-II, LCSW (NPI 1164629465) is an individual clinical provider in Rialto, California, licensed in California (85314) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1164629465
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. BRENDA JOY SILLSBURYCredential: CADC-II, LCSW
Location Address850 E FOOTHILL BLVDRialto, CA 92376-5230
Mailing Address7231 Boulder Ave # 620Highland, CA 92346-3313 · (951) 816-5235
Phone(909) 421-9241
Sole ProprietorYes
Medical School CMSOtherGraduated 2015
Enumeration DateJune 29, 2007
Last NPPES UpdateNovember 19, 20243 updates tracked since enumeration
NPPES CertifiedNovember 19, 2024
✔ NPI 1164629465 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 · 85314
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.
850 E FOOTHILL BLVD, Rialto, CA 92376
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Brenda Joy Sillsbury Cadc-ii, Lcsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9739500703
PECOS Enrollment IDI20200529000147
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 Brenda Sillsbury reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
5.1 mi
Health Maintenance Organization
9961 SIERRA AVE
Fontana, CA 92335
  • Reassigned Medicare billing, California enrollment
  • 5,228 clinicians in this Medicare group
NPI 1689606196 (909) 427-3910

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 92376 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 $59.60 – $179.42
Typical copayment $0.00 (range $14.90 – $44.85)
Most-billed visit code NA
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
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.

ROSE VERSACE MFT
Marriage & Family Therapist
850 E FOOTHILL BLVD
RIALTO, CA 92376
San Bernardino County (909) 421-9475
MRS. LINDA JOSEPHINE HEDGES M.F.T.
Marriage & Family Therapist
850 E FOOTHILL BLVD
RIALTO, CA 92376
San Bernardino County (909) 421-9470
MRS. PATRICIA LOPEZ
Interpreter
850 E FOOTHILL BLVD
RIALTO, CA 92376
San Bernardino County (909) 421-9382
MAKIBA LATISE GREEN
Rehabilitation Practitioner
850 E FOOTHILL BLVD
RIALTO, CA 92376
San Bernardino County (909) 539-7566
MRS. MARIBEL PEREZ
Interpreter
850 E FOOTHILL BLVD
RIALTO, CA 92376
San Bernardino County (909) 421-9456
DR. DIANA MAH PSY.D.
Psychologist
850 E FOOTHILL BLVD
RIALTO, CA 92376
San Bernardino County (909) 421-9380
MELISSA GUERRERO
Peer Specialist
850 E FOOTHILL BLVD
RIALTO, CA 92376
San Bernardino County (909) 421-9452
MRS. CHERYL PLACIDE MFT
Marriage & Family Therapist
850 E FOOTHILL BLVD
RIALTO, CA 92376
San Bernardino County (909) 421-9444

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 Brenda Sillsbury's NPI number?

The NPI number for Brenda Sillsbury is 1164629465. It was assigned to this individual provider in the NPPES registry on June 29, 2007.

Where is Brenda Sillsbury located?

Brenda Sillsbury practices at 850 E Foothill Blvd, Rialto, CA 92376. The listed phone number is (909) 421-9241.

What is Brenda Sillsbury's specialty?

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

Is Brenda Sillsbury enrolled in Medicare?

Yes. Brenda Sillsbury is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Brenda Sillsbury's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brenda Sillsbury reassigns Medicare benefits to Southern California Permanente Medical Group (Fontana, 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 Brenda Sillsbury'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 Brenda Sillsbury was last updated on November 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.