Norton Shores Internal Medicine & Nephrology PLC
NPI 1134357528 · Nephrology Physician · Muskegon, MI
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Norton Shores Internal Medicine & Nephrology PLC is a Nephrology Physician organization in Muskegon, MI (NPI 1134357528).
Provider details
- NPI number
- 1134357528
- Entity type
- Organization
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Yumiko Knudson, Owner(231) 733-7777
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
17 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
- 2009-06-24
- Last updated
- 2009-06-24
Frequently asked questions
- What is Norton Shores Internal Medicine & Nephrology PLC's NPI number?
- Norton Shores Internal Medicine & Nephrology PLC's National Provider Identifier (NPI) is 1134357528, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Norton Shores Internal Medicine & Nephrology PLC?
- Norton Shores Internal Medicine & Nephrology PLC is classified in the NPPES registry as Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Norton Shores Internal Medicine & Nephrology PLC located?
- Norton Shores Internal Medicine & Nephrology PLC's practice location on file with NPPES is 433 Seminole Rd, Muskegon, MI 49444-3743.
- What is Norton Shores Internal Medicine & Nephrology PLC's phone number?
- The practice phone number listed in the NPPES registry for Norton Shores Internal Medicine & Nephrology PLC is (231) 733-7777.
- Does Norton Shores Internal Medicine & Nephrology PLC accept Medicare?
- Norton Shores Internal Medicine & Nephrology PLC 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 Norton Shores Internal Medicine & Nephrology PLC?
- The authorized official listed on Norton Shores Internal Medicine & Nephrology PLC's NPPES record is Yumiko Knudson, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Norton Shores Internal Medicine & Nephrology PLC's NPI active?
- Yes — Norton Shores Internal Medicine & Nephrology PLC's NPI (1134357528) is active in the NPPES registry as of the last update on 2009-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.