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BRIMFIELD DIALYSIS, LLC
NPI 1972149466
Clinic/Center - End-Stage Renal Disease (ESRD) Treatment in Castro Valley, CA

Active since November 20, 2019
4/5
Overall Rating
20359 LAKE CHABOT RD, CASTRO VALLEY, CA 94546(510) 889-9973(510) 582-1173 Get Directions Write a Review

NPPES record last updated: May 14, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 14, 2026, Mar 10, 2025, Jul 15, 2022 and 2 more (5 updates tracked since 2019).

About Brimfield Dialysis, Llc NPPES

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

BRIMFIELD DIALYSIS, LLC (NPI 1972149466), doing business as Castro Valley Dialysis, is a healthcare organization registered as an end-stage renal disease (esrd) treatment in Castro Valley, California and active in the NPI registry since November 2019. The organization lists Samuel T. Wey, Vp, Licensure & Certification, as its authorized official.

NPPES Registry Identity

NPI1972149466
Entity TypeOrganization
Primary Taxonomy261QE0700X
Legal Business NameBRIMFIELD DIALYSIS, LLC
Location Address20359 LAKE CHABOT RDCastro Valley, CA 94546-5309
Mailing Address5200 Virginia Way, L&c DeptBrentwood, TN 37027-7569
Phone(510) 889-9973
Fax(510) 582-1173
Organization SubpartNo
Authorized OfficialSamuel T. WeyVp, Licensure & Certification · (615) 341-6641
Enumeration DateNovember 20, 2019
Last NPPES UpdateMay 14, 20265 updates tracked since enumeration
NPPES CertifiedMay 14, 2026
✔ NPI 1972149466 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · End-Stage Renal Disease (ESRD) TreatmentAmbulatory Health Care Facilities
Taxonomy Code261QE0700X
20359 LAKE CHABOT RD, Castro Valley, CA 94546
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Other Names 1

Doing Business AsCastro Valley Dialysis

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Superior HealthPlan, Ambetter Health and more.Insurance ›

Dialysis Facility Quality Ratings CMS Care Compare

Quality ratings, services and patient survey results for DaVita CASTRO VALLEY (CMS certification number 752527), from CMS Care Compare.

DaVita CASTRO VALLEY

Dialysis facility · Castro Valley, CA
4/5 CMS RatingRating period January 2020 to December 2023
OwnershipProfit
ChainDaVita
CMS Certification Number752527
ESRD NetworkNetwork 17
Hemodialysis Stations21
Medicare-Certified SinceMarch 12, 2021
Location20359 LAKE CHABOT ROADCastro Valley, CA 94546 · Alameda County
Phone(510) 582-1195
Services Offered
In-center hemodialysis

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 Brimfield Dialysis, LLC's NPI number?

The NPI number for Brimfield Dialysis, LLC is 1972149466. It was assigned to this organization in the NPPES registry on November 20, 2019. The provider is doing business as Castro Valley Dialysis.

Where is Brimfield Dialysis, LLC located?

Brimfield Dialysis, LLC is located at 20359 Lake Chabot Rd, Castro Valley, CA 94546. The listed phone number is (510) 889-9973.

What is Brimfield Dialysis, LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in End-Stage Renal Disease (ESRD) Treatment, with taxonomy code 261QE0700X.

Is Brimfield Dialysis, LLC a Medicare-certified dialysis facility?

Yes. DaVita CASTRO VALLEY is a Medicare-certified dialysis facility, certified since March 12, 2021.

What quality rating does Brimfield Dialysis, LLC have?

CMS rates DaVita CASTRO VALLEY 4 out of 5 stars on Care Compare. The full measure detail is in the Dialysis Facility Quality section above.

What insurance does Brimfield Dialysis, LLC accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Superior HealthPlan and UnitedHealthcare list Brimfield Dialysis, LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Brimfield Dialysis, LLC was last updated on May 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.