William Aderhold
Physician Assistant · Erwin, TNNPI 1003975707
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (55.1%), food and beverage and consulting fees — rather than concentrated in one kind of arrangement. 41 manufacturers reported payments, led by AbbVie at 36.7% of the total. Reporting peaked in 2023 at $17,915 and has fallen 90.4% since, to $1,715 in 2025. Among physician assistant clinicians in TN 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 658 payments — averaging $50.59 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$12K
- Amgen$10K
- Novo Nordisk$3K
- Lilly USA, LLC$1K
- AstraZeneca$849
- Bayer$704
- plus $5K from 35 others
What the payments were for
- Consulting fees$1,5905%
- Speaking & faculty fees$18,34455%
- Travel & lodging$5752%
- Food & beverage$12,74338%
- Education$340%
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.
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
$33,286 in reported general payments places this provider in the 95th percentile of 2,404 physician assistant providers in Tennessee.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| MounjaroTirzepatide | 59 | $65,642 |
| JardianceEmpagliflozin | 57 | $51,172 |
| OzempicSemaglutide | 34 | $46,155 |
| EntrestoSacubitril/Valsartan | 50 | $44,287 |
| EliquisApixaban | 51 | $39,338 |
| VascepaIcosapent Ethyl | 89 | $38,511 |
| FarxigaDapagliflozin Propanediol | 40 | $36,410 |
| TrulicityDulaglutide | 31 | $34,624 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 26 | $28,868 |
| VraylarCariprazine Hcl | 16 | $23,922 |
| KerendiaFinerenone | 20 | $17,746 |
| Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog | 13 | $15,256 |
| Repatha SureclickEvolocumab | 20 | $13,523 |
| Tresiba Flextouch U-200Insulin Degludec | 12 | $8,653 |
| GlyxambiEmpagliflozin/Linagliptin | 12 | $7,359 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Lilly USA, LLCMounjaro, Trulicity | $1,198 | $100,26690 claims |
| Boehringer IngelheimJardiance, Glyxambi | $400 | $58,53069 claims |
| Novo NordiskOzempic | $3,436 | $46,15534 claims |
| NovartisEntresto | $328 | $44,28750 claims |
| PfizerEliquis | $113 | $39,33851 claims |
| AstraZenecaFarxiga | $849 | $36,41040 claims |
| GSKTrelegy Ellipta | $599 | $28,86826 claims |
| AbbVieVraylar | $12,200 | $23,92216 claims |
| BayerKerendia | $704 | $17,74620 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 2,404 physician assistant providers in Tennessee.
Other physician assistant in Erwin
- Lindsey NixKnoxville$576K
- Anna KerseySavannah$399K
- Brie ChandlerNashville$317K
- Loree EasleyBartlett$187K
- Katherine RunyanKnoxville$156K
- Robert LaughertyAlcoa$122K
- Elisabeth BennettNashville$109K
- John KramerNashville$109K
- Whitney GatewoodMemphis$104K
- Nicholas BarkemeyerNashville$85K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.