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WEST MICHIGAN NEPHROLOGY PLLC
NPI 1235143090
Internal Medicine - Nephrology in Muskegon, MI

Active since July 28, 2006CLIA 23D0379906 · Microscopy
1250 MERCY DR, SUITE 101, MUSKEGON, MI 49444(231) 733-1912(231) 737-4603 Get Directions Write a Review

NPPES record last updated: July 9, 2020. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 9, 2020, Mar 14, 2017 (2 updates tracked since 2017).

About West Michigan Nephrology Pllc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WEST MICHIGAN NEPHROLOGY PLLC (NPI 1235143090) is a healthcare organization registered as a nephrology in Muskegon, Michigan and active in the NPI registry since July 2006. The organization holds a CLIA Microscopy certificate valid through March 16, 2028 and lists Kathy Holtz, Practice Administrator, as its authorized official.

NPPES Registry Identity

NPI1235143090
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameWEST MICHIGAN NEPHROLOGY PLLC
Location Address1250 MERCY DR, SUITE 101Muskegon, MI 49444-1881
Mailing Address1250 Mercy Dr, Suite 101Muskegon, MI 49444-1881 · (231) 733-1912 · Fax (231) 737-4603
Phone(231) 733-1912
Fax(231) 737-4603
Organization SubpartNo
Authorized OfficialKathy HoltzPractice Administrator · (231) 733-1912
Enumeration DateJuly 28, 2006
Last NPPES UpdateJuly 9, 20202 updates tracked since enumeration
NPPES CertifiedJuly 9, 2020
✔ NPI 1235143090 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

1250 MERCY DR, Muskegon, MI 49444
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company.Insurance ›

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 23D0379906

West Michigan Nephrology PLLC · Muskegon, MI
Active · expires Mar 16, 2028
CLIA Number23D0379906
Laboratory TypePhysician Office
Certificate Effective DateMarch 17, 2026
Certificate Expiration DateMarch 16, 2028
Laboratory DirectorGregory H. Downer
Laboratory Phone(231) 733-1912
Laboratory LocationWest Michigan Nephrology PLLC1250 Mercy Drive, Ste 101, Muskegon, MI 49444
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GREGORY H DOWNER M.D.
Internal Medicine (Nephrology)
1250 MERCY DR, SUITE 101
MUSKEGON, MI 49444
Muskegon County (231) 733-1912
MARK E STANIFORTH MD
Internal Medicine (Nephrology)
1250 MERCY DR, STE 101
MUSKEGON, MI 49444
Muskegon County (231) 739-6375
DVA RENAL HEALTHCARE INC
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
1250 MERCY DR, STE 201
MUSKEGON, MI 49444
Muskegon County (231) 737-0075

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is West Michigan Nephrology PLLC's NPI number?

The NPI number for West Michigan Nephrology PLLC is 1235143090. It was assigned to this organization in the NPPES registry on July 28, 2006.

Where is West Michigan Nephrology PLLC located?

West Michigan Nephrology PLLC is located at 1250 Mercy Dr Suite 101, Muskegon, MI 49444. The listed phone number is (231) 733-1912.

What is West Michigan Nephrology PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Does West Michigan Nephrology PLLC hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 23D0379906) is associated with this NPI, valid through March 16, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does West Michigan Nephrology PLLC accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list West Michigan Nephrology PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for West Michigan Nephrology PLLC was last updated on July 9, 2020. NPI Profile syncs with the weekly NPPES data releases published by CMS.