Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Katherine Defouw

Individual provider Nurse Practitioner · NPI 1467869859

Katherine Defouw is a Nurse Practitioner in Grand Rapids, Michigan. Qualified in 2014, 12 years ago. Practices with Spectrum Health Primary Care Partners, a 2,303-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
12
Licensed in
MI
In the registry since
2014
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Practice location Address checks out

230 Michigan St NE Ste 230
Grand Rapids, MI 49503-2550
Phone: (616) 774-2822
Fax: (616) 391-8665
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 4704251605 (MI)

Record details

NPI number1467869859
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedJuly 17, 2014
Last updated in NPPESMarch 2, 2021
Certification dateMarch 2, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Spectrum Health Primary Care Partners — 2303 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients130
Services billed 175 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Corewell Health Pennock Hospital Hospital · Hastings, MI · listed as Pennock Hospital
  • Spectrum Health Hospital · Grand Rapids, MI · listed as Spectrum Health Hospital
  • Corewell Health Gerber Hospital Hospital · Fremont, MI
  • Corewell Health Ludington Hospital Hospital · Ludington, MI

Colleagues at Spectrum Health Primary Care Partners

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2303 clinicians in the practice; 12 are shown here.

Other providers in Grand Rapids