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West Michigan Nephrology Pllc

Nephrology Physician in Muskegon, MI · enumerated 2006 · authorized official Kathy Holtz, Practice Administrator.

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

National Provider Identifier

1235143090

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Registry record

Entity type Organization (Type 2)
Legal business name West Michigan Nephrology Pllc
Practice address 1250 Mercy Dr, Suite 101, Muskegon, MI, 49444
Phone (231) 733-1912
Fax (231) 737-4603
Enumeration date Jul 28, 2006
Last updated in NPPES Jul 9, 2020

Taxonomy & classification

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Kathy Holtz
Title Practice Administrator
Phone (231) 733-1912

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

What is the NPI number for West Michigan Nephrology Pllc?
The NPI for West Michigan Nephrology Pllc is 1235143090, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for West Michigan Nephrology Pllc?
NPPES lists Kathy Holtz (Practice Administrator) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-09.