Gary A. Knudson, MD
NPI 1700813441ActiveIndividual· Orthopaedic Surgery· Waterloo, IA
Orthopaedic Surgery (MD) with Covenant Medical Center Inc, practicing in Waterloo, Iowa. 513 Medicare patients in 2024, $137,158 paid; all of their 125 Part D prescriptions were generic. Vertex Pharmaceuticals Incorporated was the largest of 2 companies reporting payments in 2025, $57.80 in all, mostly food and beverage. Lists Mercyone Waterloo Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1700813441 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 27, 2006 |
| Last updated in NPPES | Jul 16, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 32397 | IA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 513 |
|---|---|
| Services billed | 1,892 across 105 procedure codes |
| Paid by Medicare | $137,158 |
Part D prescriptions in 2024
| Prescriptions (claims) | 125 · 125 30-day fills |
|---|---|
| Patients | 67 |
| Total drug cost | $253.30 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Orthopedic Surgery |
Medical group
- Covenant Medical Center IncWaterloo, IA · 235 clinicians
Hospital affiliations
- Mercyone Waterloo Medical CenterWaterloo, IA
- Sartori Memorial Hospital, IncCedar Falls, IA
- Waverly Health CenterWaverly, IA
Industry payments (Open Payments)
- 2025$57.80 · 3 payments from 2 companies
- 2024$383.85 · 15 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $32.21 | 2 |
| Spr Therapeutics, Inc | $25.59 | 1 |
What the 2025 payments were for
- Food and Beverage$57.80 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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