Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Brimfield Dialysis, LLC

Q: What type of organization is Brimfield Dialysis, LLC?

Brimfield Dialysis, LLC is registered in NPPES as a End-Stage Renal Disease (ESRD) Treatment Clinic/Center (its primary provider taxonomy).

End-Stage Renal Disease (ESRD) Treatment Clinic/Center in Castro Valley, CA · enumerated 2019 · authorized official Samuel Wey, Vp, Licensure & Certification.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1972149466

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Registry record

Entity type Organization (Type 2)

Legal business name Brimfield Dialysis, LLC

Other name <Unavail>

Practice address 20359 Lake Chabot Rd, Castro Valley, CA, 94546

Phone (510) 889-9973

Fax (510) 582-1173

Enumeration date Nov 20, 2019

Last updated in NPPES May 14, 2026

Taxonomy & classification

261QE0700X End-Stage Renal Disease (ESRD) Treatment Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Samuel Wey

Title Vp, Licensure & Certification

Phone (615) 341-6641

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Brimfield Dialysis, LLC?

Brimfield Dialysis, LLC is registered in NPPES as a End-Stage Renal Disease (ESRD) Treatment Clinic/Center (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-14.