Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Knobbs Dialysis LLC

End-Stage Renal Disease (ESRD) Treatment Clinic/Center in Siren, WI · enumerated 2014 · authorized official John Winstel, Chief Accounting Officer.

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

National Provider Identifier

1417354218

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Knobbs Dialysis LLC

Other name <Unavail>

Practice address 24670 State Road 35 70 Ste 100, Siren, WI, 54872

Phone (715) 349-4220

Fax (715) 349-4224

Enumeration date Nov 24, 2014

Last updated in NPPES Aug 10, 2021

Taxonomy & classification

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

Authorized official

Name John Winstel

Title Chief Accounting Officer

Phone (253) 733-4501

Other identifiers

Identifier	Type	State	Issuer
1417354218	Medicaid	WI	-

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

Where is Knobbs Dialysis LLC located?

The practice location on file with NPPES is in Siren, WI.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2021-08-10. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Total Renal Care Inc End-Stage Renal Disease (ESRD) Treatment Clinic/Center · Siren, WI NPI 1679977920

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-10.