Katherine M. Tjaden, PA-C
NPI 1013974575ActiveIndividual· Physician Assistant· Ames, IA
Physician Assistant (PA-C) with McFarland Clinic PC, practicing in Ames, Iowa. 190 Medicare patients in 2024, $13,990 paid; nearly all of their 256 Part D prescriptions were generic (95%).
Overview
| NPI | 1013974575 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Apr 28, 2006 |
| Last updated in NPPES | Feb 22, 2024 |
| Certified by provider | Feb 22, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 001576 | 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 - Physician Assistant (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 190 |
|---|---|
| Services billed | 403 across 44 procedure codes |
| Paid by Medicare | $13,990 |
Part D prescriptions in 2024
| Prescriptions (claims) | 256 · 273 30-day fills |
|---|---|
| Patients | 171 |
| Total drug cost | $4,438 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- McFarland Clinic PCAmes, IA · 363 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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