William Durham, MD
Nephrology · Asheville, NCNPI 1639166622
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $312 of the $353 with a category attached, or 88.4%. 7 manufacturers reported payments, led by Vifor Pharma, Inc. at 25.2% of the total. 2025 is the largest year on record at $104, 2.8 times the $38 reported in 2019. That places this record below the midpoint for nephrology clinicians in NC, where the typical reported total is $1,119.
Across 18 payments — averaging $19.61 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Vifor Pharma, Inc.$89
- Boehringer Ingelheim$78
- Travere Therapeutics, Inc.$66
- Akebia Therapeutics Inc$38
- Amgen$35
- Novartis$32
- plus $14 from 1 others
Across 165 payments — averaging $494.82 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Novo Nordisk AS$39K
- GSK$18K
- AstraZeneca$12K
- Akebia Therapeutics Inc$8K
- Dynavax Technologies Corporation$5K
What the payments were for
- Food & beverage$31288%
- Education$4112%
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.
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 |
|---|---|---|
| Vifor Pharma, Inc. | 5 | $89 |
| Boehringer Ingelheim | 3 | $78 |
| Travere Therapeutics, Inc. | 4 | $66 |
| Akebia Therapeutics Inc | 2 | $38 |
| Amgen | 2 | $35 |
| Novartis | 1 | $32 |
| Baxter Healthcare | 1 | $14 |
How this compares
$353 in reported general payments places this provider in the 30th percentile of 366 nephrology providers in North Carolina.
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 |
|---|---|---|
| JardianceEmpagliflozin | 83 | $75,769 |
| FarxigaDapagliflozin Propanediol | 33 | $31,868 |
| Sevelamer Carbonate | 33 | $5,283 |
| LokelmaSodium Zirconium Cyclosilicate | 11 | $4,538 |
| Bumetanide | 68 | $1,462 |
| Chlorthalidone | 84 | $1,063 |
| Spironolactone | 108 | $811 |
| Potassium Chloride | 29 | $514 |
| Valsartan | 22 | $494 |
| Olmesartan Medoxomil | 36 | $468 |
| Losartan Potassium | 75 | $378 |
| Lisinopril | 70 | $293 |
| Amlodipine Besylate | 79 | $286 |
| Tamsulosin Hcl | 17 | $235 |
| Carvedilol | 29 | $219 |
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 |
|---|---|---|
| Boehringer IngelheimJardiance | $78 | $75,76983 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 30th percentile of 366 nephrology providers in North Carolina.
Other nephrology in Asheville
- Nam VoAsheville$89K
- Gregory GreenwoodWinston-Salem$947K
- Michael EtomiCharlotte$212K
- William KendrickGreenville$125K
- Jason EckelCary$123K
- Raven VooraSanford$111K
- Jennifer StoddardPinehurst$77K
- Barry FreedmanWinston Salem$67K
- James McCabeWilmington$56K
- Sammy MoghaziRaleigh$56K
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.