Katheryn Knudson, MD
NPI 1063452118ActiveIndividual· Obstetrics & Gynecology· Grand Rapids, MI
Obstetrics & Gynecology (MD) in Grand Rapids, Michigan, trained at University of Minnesota Medical School (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $53,543 for 512 claims, against $6,415 paid for services in 2024. Hologic Sales and Service, LLC reported $21.01 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1063452118 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 7, 2006 |
| Last updated in NPPES | Apr 8, 2026 |
| Certified by provider | Apr 8, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 4301054863 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 53 |
|---|---|
| Services billed | 93 across 21 procedure codes |
| Paid by Medicare | $6,415 |
Part D prescriptions in 2024
| Prescriptions (claims) | 512 · 1,195 30-day fills |
|---|---|
| Patients | 171 |
| Total drug cost | $53,543 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Obstetrics/Gynecology |
Hospital affiliation
- Spectrum HealthGrand Rapids, MI
Industry payments (Open Payments)
- 2025$21.01 · 1 payment from 1 company
- 2024$152.10 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Hologic Sales and Service, LLC | $21.01 | 1 |
What the 2025 payments were for
- Food and Beverage$21.01 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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