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Midwest Nephrology Associates, S.C.

Nephrology Physician in Waukesha, WI · enumerated 2007 · authorized official Gregory Warren, President.

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

National Provider Identifier

1487848743

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Registry record

Entity type Organization (Type 2)
Legal business name Midwest Nephrology Associates, S.C.
Practice address 111 Ann Street, Waukesha, WI, 53188
Phone (262) 542-6179
Fax (262) 542-6182
Enumeration date Aug 30, 2007
Last updated in NPPES Nov 14, 2008

Taxonomy & classification

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Gregory Warren
Title President
Phone (414) 762-2020

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.

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Frequently asked questions

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-11-14. Verify at npiregistry.cms.hhs.gov.
Where is Midwest Nephrology Associates, S.C. located?
The practice location on file with NPPES is in Waukesha, WI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-14.