Gregory Zybczynski, PA
Physician Assistant · Amherst, NYNPI 1861987125
Payments from drug & device makers
Across 22 payments — averaging $21.18 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Bioventus LLC$67
- Orthofix Medical, Inc.$63
- Stryker$56
- Pacira Therapeutics, Inc.$47
- Springworks Therapeutics, Inc.$34
- Smith+Nephew$34
- plus $165 from 7 others
What the payments were for
- Food & beverage$466100%
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 |
|---|---|---|
| Bioventus LLC | 2 | $67 |
| Orthofix Medical, Inc. | 2 | $63 |
| Stryker | 2 | $56 |
| Pacira Therapeutics, Inc. | 2 | $47 |
| Springworks Therapeutics, Inc. | 2 | $34 |
| Smith+Nephew | 2 | $34 |
| Ferring Pharmaceuticals Inc. | 2 | $33 |
| Avanos Medical | 2 | $31 |
| AbbVie | 1 | $26 |
| Integra Lifesciences Corporation | 1 | $22 |
| Solventum Corporation | 1 | $20 |
| Deciphera Pharmaceuticals Inc. | 1 | $18 |
| Heraeus Medical, LLC. | 2 | $15 |
How this compares
$466 in reported general payments places this provider in the 65th percentile of 11,358 physician assistant providers in New York.
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 |
|---|---|---|
| Naproxen | 14 | $1,624 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 17 | $106 |
| Oxycodone Hcl | 12 | $64 |
| Tramadol Hcl | 26 | $61 |
| Meloxicam | 13 | $37 |
| Cephalexin | 11 | $36 |
Paid to pharmacies, not to this prescriber.
Other physician assistant in Amherst
- Michael AsbachAmherst$962K
- Madeline SliszAmherst$101K
- Rachel AllenAmherst$54K
- Lauren JendraszekAmherst$40K
- Delaney FragaleAmherst$33K
- Henry YuBronx$1M
- Janelle BunceJamestown$565K
- Kristyl Cuenca-SiskoNew York$478K
- Melissa WhiteGarden City$320K
- Lawrence HermanHolbrook$315K
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.