Derek Kaznoski, MD
Gynecology · Martinsburg, WVNPI 1689675027
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (47.6%), travel and lodging and education — rather than concentrated in one kind of arrangement. 8 manufacturers reported payments, led by Boston Scientific at 55.5% of the total. Reporting peaked in 2019 at $1,106 and has fallen 79.2% since, to $230 in 2025.
Across 36 payments — averaging $45.54 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$910
- Astellas Pharma US Inc$560
- ABC Home Medical Supply, Inc.$59
- Therapeuticsmd, Inc.$50
- GSK$17
- Sumitomo Pharma America, Inc.$15
- plus $29 from 2 others
What the payments were for
- Travel & lodging$66040%
- Food & beverage$78048%
- Education$20012%
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 |
|---|---|---|
| Boston Scientific | 6 | $910 |
| Astellas Pharma US Inc | 21 | $560 |
| ABC Home Medical Supply, Inc. | 1 | $59 |
| Therapeuticsmd, Inc. | 4 | $50 |
| GSK | 1 | $17 |
| Sumitomo Pharma America, Inc. | 1 | $15 |
| Medtronic | 1 | $15 |
| BD | 1 | $14 |
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
Too few gynecology providers in West Virginiato place this figure against a meaningful peer group, so we don't.
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 |
|---|---|---|
| MyrbetriqMirabegron | 38 | $40,363 |
| Estradiol | 144 | $14,999 |
| GemtesaVibegron | 11 | $11,545 |
| Tolterodine Tartrate ErTolterodine Tartrate | 88 | $8,233 |
| YuvafemEstradiol | 37 | $4,645 |
| Trospium Chloride ErTrospium Chloride | 14 | $3,371 |
| Oxybutynin Chloride ErOxybutynin Chloride | 128 | $2,028 |
| Clobetasol Propionate | 39 | $1,157 |
| Solifenacin Succinate | 23 | $903 |
| Raloxifene Hcl | 16 | $559 |
| Oxybutynin Chloride | 19 | $543 |
| Ketoconazole | 27 | $477 |
| Metronidazole | 20 | $453 |
| Cephalexin | 50 | $435 |
| Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip | 14 | $395 |
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 |
|---|---|---|
| Astellas Pharma US IncMyrbetriq | $560 | $40,36338 claims |
| Sumitomo Pharma America, Inc.Gemtesa | $15 | $11,54511 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. There are too few gynecology providers in West Virginiaon file to place this against a meaningful peer group, so we don't.
Other gynecology in Martinsburg
- Robert DepondCharleston$29K
- Sam BadranPoint Pleasant$9K
- Samantha ChaffinRonceverte$2K
- Leigh MasseyWheeling$732
- Vidya PuranikBeckley$147
- Lisa SkinnerMadison$88
- John BattaglinoWheeling$67
- Ernest FloresElkins$23
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.