West Michigan Nephrology PLLC
NPI 1235143090 · Nephrology Physician · Muskegon, MI
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
West Michigan Nephrology PLLC is a Nephrology Physician organization in Muskegon, MI (NPI 1235143090).
Provider details
- NPI number
- 1235143090
- Entity type
- Organization
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Kathy Holtz, Practice Administrator(231) 733-1912
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-28
- Last updated
- 2020-07-09
- Certified
- 2020-07-09
Frequently asked questions
- What is West Michigan Nephrology PLLC's NPI number?
- West Michigan Nephrology PLLC's National Provider Identifier (NPI) is 1235143090, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is West Michigan Nephrology PLLC?
- West Michigan Nephrology PLLC is classified in the NPPES registry as Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is West Michigan Nephrology PLLC located?
- West Michigan Nephrology PLLC's practice location on file with NPPES is 1250 Mercy Dr, Muskegon, MI 49444-1881.
- What is West Michigan Nephrology PLLC's phone number?
- The practice phone number listed in the NPPES registry for West Michigan Nephrology PLLC is (231) 733-1912.
- Does West Michigan Nephrology PLLC accept Medicare?
- West Michigan Nephrology PLLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for West Michigan Nephrology PLLC?
- The authorized official listed on West Michigan Nephrology PLLC's NPPES record is Kathy Holtz, Practice Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is West Michigan Nephrology PLLC's NPI active?
- Yes — West Michigan Nephrology PLLC's NPI (1235143090) is active in the NPPES registry as of the last update on 2020-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.