Katherine Ann Lem, P.A.
NPI 1043441264ActiveIndividual· Physician Assistant· Ames, IA
Physician Assistant (P.A.) with McFarland Clinic PC, practicing in Ames, Iowa. Their prescriptions cost Medicare Part D more than their services did: $362,566 for 639 claims, against $100,815 paid for services in 2024. Janssen Biotech, Inc. was the largest of 3 companies reporting payments in 2025, $99,377 in all, mostly speaking and faculty fees.
Overview
| NPI | 1043441264 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A. |
| Sole proprietor | No |
| NPI issued | Aug 5, 2009 |
| Last updated in NPPES | Sep 11, 2025 |
| Certified by provider | Sep 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | — | — |
| Physician Assistant, Medical | 363AM0700X | — | — |
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 | 638 |
|---|---|
| Services billed | 3,115 across 60 procedure codes |
| Paid by Medicare | $100,815 |
Part D prescriptions in 2024
| Prescriptions (claims) | 639 · 785 30-day fills |
|---|---|
| Patients | 190 |
| Total drug cost | $362,566 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- McFarland Clinic PCAmes, IA · 363 clinicians
Industry payments (Open Payments)
- 2025$99,377 · 130 payments from 3 companies
- 2024$64,710 · 93 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $99,324 | 128 |
| Regeneron Healthcare Solutions, Inc. | $39.06 | 1 |
| Galderma Laboratories, L.P. | $14.30 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$91,013 · 42 payments
- Travel and Lodging$6,671 · 41 payments
- Food and Beverage$1,495 · 45 payments
- Education$198.00 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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