Stephen Kathman, PA
Physician Assistant · Vandalia, OHNPI 1144566613
Payments from drug & device makers
Across 23 payments — averaging $39.36 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Phathom Pharmaceuticals, Inc.$266
- Madrigal Pharmaceuticals$190
- Johnson & Johnson$117
- Sanofi$111
- AbbVie$86
- Takeda Pharmaceuticals U.S.A., Inc.$72
- plus $62 from 2 others
What the payments were for
- Food & beverage$905100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | 4 | $266 |
| Madrigal Pharmaceuticals | 4 | $190 |
| Johnson & Johnson | 1 | $117 |
| Sanofi | 4 | $111 |
| AbbVie | 4 | $86 |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $72 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 2 | $37 |
| Regeneron Healthcare Solutions, Inc. | 1 | $25 |
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.
How this compares
$905 in reported general payments places this provider in the 75th percentile of 4,098 physician assistant providers in Ohio.
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 |
|---|---|---|
| Olanzapine | 12 | $4,116 |
| Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate | 12 | $1,834 |
| Lantus SolostarInsulin Glargine,hum.Rec.Anlog | 18 | $1,541 |
| Quetiapine Fumarate | 31 | $1,442 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 33 | $843 |
| Valsartan | 11 | $765 |
| Potassium Chloride | 31 | $713 |
| Omeprazole | 101 | $638 |
| Lactulose | 21 | $594 |
| Rosuvastatin Calcium | 58 | $593 |
| Levothyroxine Sodium | 57 | $434 |
| Atorvastatin Calcium | 58 | $432 |
| Pantoprazole Sodium | 36 | $389 |
| Gabapentin | 29 | $356 |
| Pregabalin | 14 | $304 |
Paid to pharmacies, not to this prescriber.
Other physician assistant in Vandalia
- Steven WurzelbacherCincinnati$309K
- Emily AnkromDayton$192K
- Amanda MaggartWorthington$164K
- Megan SevillaMayfield Heights$132K
- Erin StrculaBelpre$106K
- Natalie WalkupSylvania$105K
- Sarah LaubNew Albany$100K
- Jessica RhominskiCanal Winchester$78K
- Alan OdonnellCincinnati$71K
- Brook GramBeloit$52K
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.