Registry data as of Aug 27, 2026

Katheryn Knudson, MD

Obstetrics & Gynecology Physician · Grand Rapids, MI

Katheryn Knudson, MD is an obstetrics & gynecology physician with a practice address in Grand Rapids, Michigan, and NPI 1063452118, issued on Jun 7, 2006. Check the license (Michigan 4301054863, as entered in NPPES) on the Michigan Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1063452118
Name
Katheryn Knudson
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
4301054863 MI
Self-reported in NPPES; status is on the state search
Practice location
80 68TH St SE Ste 301, Grand Rapids, MI 49548
Phone
(616) 391-3302
Enumerated
Jun 7, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 80 68TH St SE Ste 301

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kelly Bruch, RN, MSN, CNMAdvanced Practice Midwife1235876178
  2. Mackenzie Bueter, CNMAdvanced Practice Midwife1255148045
  3. Mariel Haverdink, CNMAdvanced Practice Midwife1144804048
  4. Kelly Levitt, CNMAdvanced Practice Midwife1750835005
  5. Roneidra Lucky, MSN, CNMAdvanced Practice Midwife1790442168
  6. Sarah Miller, D.O.Obstetrics & Gynecology Physician1154617660

Verify Katheryn Knudson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine
    Search for license 4301054863
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

2.7 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024

512 Medicare Part D claims for 171 beneficiaries, against an average of 188 among the 27,363 providers of this specialty who prescribed in Part D.

  1. Katheryn Knudson512
  2. Specialty average188

Most prescribed

  1. Estradiol179 claims
  2. Clobetasol Propionate75 claims
  3. Estradiol (Twice Weekly)49 claims
  4. Progesterone30 claims
  5. Fluconazole15 claims
  6. Premarin14 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.

  1. Qualityout of 100 · 30% of the final score87.5
  2. Costout of 100 · 30%
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $152.10

2 payments, mostly food and beverage; the largest payer was Gynesonics, Inc.. The 20,757 providers of this specialty with any payment received $1,147.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katheryn Knudson$152.10
  2. Specialty average$1,147.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Obstetrics & Gynecology Physician providers in Michigan

There are 1,735 obstetrics & gynecology physician records in Michigan.

Other obstetrics & gynecology physician records in Michigan

  1. Bryan Aaron, MDAnn Arbor, MI1578307724
  2. Mushtak Abbou, MDRoyal Oak, MI1093796922
  3. Youstina Abdallah, MDGrand Rapids, MI1679325062
  4. Adib Abdelrahman, D.O.Pontiac, MI1679889406
  5. Anan Abdelrahman, MDPontiac, MI1760472740
  6. Charlene Abernethy, DOWilliamsburg, MI1447305016
  7. Melinda Abernethy, M.D.Kalamazoo, MI1427254226
  8. Andrea Abessinio, D.O.Saint Clair Shores, MI1144237926
  9. Carmela Abessinio, D.O.Grosse Pointe, MI1174661763
  10. Joelle Abood, M.D.Troy, MI1063724813

Common questions

What is Katheryn Knudson, MD's NPI number?

Katheryn Knudson, MD's National Provider Identifier (NPI) is 1063452118, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Katheryn Knudson, MD located?

The NPPES record lists a practice address at 80 68TH St SE Ste 301, Grand Rapids, MI, 49548. Phone: (616) 391-3302. Providers update this record themselves, so call before visiting.

How can I verify Katheryn Knudson, MD's license?

NPPES lists Michigan license number 4301054863, as entered by the provider. Search the Michigan Board of Medicine at https://www.michigan.gov/lara/bureau-list/bpl/health/hp-lic-health-prof/medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Katheryn Knudson, MD prescribe under Medicare Part D?

In 2024, Katheryn Knudson, MD had 512 Medicare Part D claims for 171 beneficiaries; the average among obstetrics & gynecology physician prescribers was 188. Part D covers Medicare prescriptions only.

What is Katheryn Knudson, MD'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.