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Nephrology

Michael Unruh, MD

Works at hospitals in Hastings, MI · Grand Rapids, MI · Greenville, MI … · Michigan

Summary

Michael Unruh, MD (Nephrology) is listed by Medicare at 5 hospitals in Hastings, MI, Grand Rapids, MI and Greenville, MI and other places. NPI 1104036532. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Michael Unruh, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

NephrologyPrimary specialty
YesAccepts Medicare assignment
22Years since medical school (graduated 2004)
University Of Minnesota Medical SchoolMedical school
MaleGender (as listed)
Whidbey Island Public Hospital DistrictGroup practice (+2 more)

Quick answers

Which hospitals does Michael Unruh work at?
Medicare's official clinician data lists Michael Unruh at 5 hospitals: Corewell Health Pennock Hospital, Mercy Health Saint Mary's, Spectrum Health, Spectrum Health United Hospital and University of Michigan Health - West. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael Unruh see patients?
Medicare's clinician data lists 3 practice locations, including Wyoming, MI, Grand Rapids, MI and Coupeville, WA. Call before your visit to confirm the address.
What is Michael Unruh's specialty?
Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
Does Michael Unruh accept Medicare assignment?
Yes. Medicare's clinician data says Michael Unruh accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Michael Unruh?
(616) 532-3072, as listed in official Medicare / NPI Registry data.
What is Michael Unruh's NPI number?
1104036532. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michael Unruh works

Medicare's Facility Affiliation Data lists Michael Unruh at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Michael Unruh is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Michael Unruh as a member of these groups (CMS data updated 2026-10-02).

  • Whidbey Island Public Hospital District103 clinicians in the group
  • Renal Associates of West Michigan PC20 clinicians in the group
  • Rawm Vascular Access PLLC3 clinicians in the group

Specialties

Find other Nephrology doctors in Michigan →

Other nephrologists in Michigan

Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.

All nephrologists in Michigan →

Clinician information

CredentialMD
Medical schoolUniversity Of Minnesota Medical School
Graduation year2004
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1104036532
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians