Brimfield Dialysis, LLC
NPI 1972149466 · End-Stage Renal Disease (ESRD) Treatment Clinic/Center · Castro Valley, CA
Enrolled with Medicare as Part a Provider - End-Stage Renal Disease Facility (esrd) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brimfield Dialysis, LLC is a End-Stage Renal Disease (ESRD) Treatment Clinic/Center organization in Castro Valley, CA (NPI 1972149466).
Provider details
- NPI number
- 1972149466
- Entity type
- Organization
- Primary specialty
- End-Stage Renal Disease (ESRD) Treatment Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Samuel Wey, Vp, Licensure & Certification(615) 341-6641
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Castro Valley Dialysis
- Doing business as
- Castro Valley Dialysis
Registry dates
- Enumerated
- 2019-11-20
- Last updated
- 2026-05-14
- Certified
- 2026-05-14
Frequently asked questions
- What is Brimfield Dialysis, LLC's NPI number?
- Brimfield Dialysis, LLC's National Provider Identifier (NPI) is 1972149466, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Brimfield Dialysis, LLC?
- Brimfield Dialysis, LLC is classified in the NPPES registry as End-Stage Renal Disease (ESRD) Treatment Clinic/Center (Ambulatory Health Care Facilities).
- Where is Brimfield Dialysis, LLC located?
- Brimfield Dialysis, LLC's practice location on file with NPPES is 20359 Lake Chabot Rd, Castro Valley, CA 94546-5309.
- What is Brimfield Dialysis, LLC's phone number?
- The practice phone number listed in the NPPES registry for Brimfield Dialysis, LLC is (510) 889-9973.
- Does Brimfield Dialysis, LLC accept Medicare?
- Brimfield Dialysis, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Brimfield Dialysis, LLC?
- The authorized official listed on Brimfield Dialysis, LLC's NPPES record is Samuel Wey, Vp, Licensure & Certification. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Brimfield Dialysis, LLC's NPI active?
- Yes — Brimfield Dialysis, LLC's NPI (1972149466) is active in the NPPES registry as of the last update on 2026-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.