Katherine Lem
Physician Assistant · Ames, IANPI 1043441264
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $193,938 of the $224,412 with a category attached, or 86.4%. Johnson & Johnson accounts for 87.9% of it on its own, with 6 other manufacturers making up the rest. 2025 is the largest year on record at $99,377, more than ten times the $9,267 reported in 2021. Among physician assistant clinicians in IA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 314 payments — averaging $714.69 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$197K
- Janssen Scientific Affairs, LLC$27K
- Sun Pharmaceutical Industries Inc.$72
- Galderma Laboratories, L.p.$56
- Regeneron Healthcare Solutions, Inc.$39
- Pfizer$31
- plus $17 from 1 others
What the payments were for
- Consulting fees$6000%
- Speaking & faculty fees$193,93886%
- Travel & lodging$24,93011%
- Food & beverage$4,6442%
- Education$3010%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Johnson & Johnson | 269 | $197,344 |
| Janssen Scientific Affairs, LLC | 38 | $26,854 |
| Sun Pharmaceutical Industries Inc. | 1 | $72 |
| Galderma Laboratories, L.p. | 2 | $56 |
| Regeneron Healthcare Solutions, Inc. | 1 | $39 |
| Pfizer | 2 | $31 |
| E.r. Squibb & Sons, L.L.C. | 1 | $17 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- Tremfya$219,622
How this compares
$224,412 in reported general payments places this provider in the 95th percentile of 1,140 physician assistant providers in Iowa.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Skyrizi PenRisankizumab-Rzaa | 11 | $239,412 |
| ZoryveRoflumilast | 15 | $12,858 |
| Clobetasol Propionate | 65 | $2,878 |
| Ketoconazole | 98 | $2,262 |
| Betamethasone Dipropionate | 34 | $1,392 |
| Calcipotriene | 11 | $1,259 |
| Metronidazole | 23 | $1,116 |
| Doxycycline Hyclate | 28 | $959 |
| Fluocinonide | 23 | $790 |
| Triamcinolone Acetonide | 85 | $752 |
| Spironolactone | 21 | $442 |
| Dapsone | 12 | $402 |
| Mometasone Furoate | 11 | $284 |
| ValacyclovirValacyclovir Hcl | 16 | $259 |
| Minoxidil | 11 | $112 |
Paid to pharmacies, not to this prescriber.
Other physician assistant in Ames
- Nicolle FischerAmes$9K
- Meagen AndersonAmes$9K
- Jayson GesulgaUrbandale$878K
- Laurie ClairJohnston$293K
- Laura CunninghamWest Des Moines$128K
- Michon LeddyClive$73K
- Kyle HawkinsIowa City$42K
- Andrew MetzgerIowa City$37K
- Myrl HolidaIowa City$37K
- Kelly MerchieDavenport$15K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.