Katherine Defouw
Nurse Practitioner · Grand Rapids, MI
Katherine Defouw is a nurse practitioner with a practice address in Grand Rapids, Michigan, and NPI 1467869859, issued on Jul 17, 2014. Check the license (Michigan 4704251605, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Defouw
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 4704251605 MI
Self-reported in NPPES; status is on the state search - Practice location
- 230 Michigan St NE, Grand Rapids, MI 49503
- Phone
- (616) 774-2822
- Enumerated
- Jul 17, 2014
- Entity
- Type 1 · individual
Also registered at 230 Michigan St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joann Baar, FNPFamily Nurse Practitioner1063436533
- Ayse Cemeroglu, MDPediatric Endocrinology Physician1457321481
- Jorgelina De Sanctis, MDInfectious Disease Physician1396950226
- David Dobbie, M.D.Infectious Disease Physician1639116411
- Rebecca Emery, MDInternal Medicine Physician1376104596
- Mimi Emig, M.D.Infectious Disease Physician1205817863
Verify Katherine Defouw in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4704251605Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
91% fewer Medicare Part D claims than the average nurse practitioner in 2024
104 Medicare Part D claims for 33 beneficiaries, against an average of 1,144 among the 50,277 providers of this specialty who prescribed in Part D.
Most prescribed
- Doxycycline Hyclate22 claims
- Amoxicillin13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The Medicare quality score for 2023: 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $18.46
1 payment, mostly food and beverage; the largest payer was Ferring Pharmaceuticals Inc.. The 36,168 providers of this specialty with any payment received $802.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Spectrum Health Primary Care PartnersGrand Rapids, MI
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
279 nurse practitioner records list a Grand Rapids practice address
They are 279 of the 18,005 NPPES records with a Grand Rapids practice address, and 3,201 nurse practitioner records in Michigan.
All 279 in Grand Rapids → All 3,201 in Michigan → Every provider in Grand Rapids →
Other nurse practitioner records in Michigan
- Amina Abair, NP-CFlint, MI1083165161
- Heba AbazidDearborn Heights, MI1346826849
- Azra Abbasi, AGNP-COkemos, MI1871196014
- Linda Abbo, FNP-CFarmington Hills, MI1649814641
- Bilal Abdulla, NPDearborn, MI1912469701
- Sandra Abdullah, FNP-BCRochester Hills, MI1598592644
- Renee Aboona, NP-CRoyal Oak, MI1598346629
- Douglas Abraham, APRN, FNP-C, ENP-C,Battle Creek, MI1811689144
- Karyn Abrahamson, NPManistee, MI1588683288
- Barbara Adam, N.P.Detroit, MI1881918357
Common questions
What is Katherine Defouw's NPI number?
Katherine Defouw's National Provider Identifier (NPI) is 1467869859, issued on Jul 17, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Defouw located?
The NPPES record lists a practice address at 230 Michigan St NE, Grand Rapids, MI, 49503. Phone: (616) 774-2822. Providers update this record themselves, so call before visiting.
How can I verify Katherine Defouw's license?
NPPES lists Michigan license number 4704251605, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Defouw prescribe under Medicare Part D?
In 2024, Katherine Defouw had 104 Medicare Part D claims for 33 beneficiaries; the average among nurse practitioner prescribers was 1,144. Part D covers Medicare prescriptions only.
What is Katherine Defouw's Medicare quality score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.