Ahmed Nassar, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Allentown, PANPI 1922329622
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $8,089 of the $11,604 with a category attached, or 69.7%. It is spread thinly across 18 manufacturers, the largest accounting for just 23.6%. Reporting peaked in 2023 at $4,125 and has fallen 58.5% since, to $1,714 in 2025.
Across 174 payments — averaging $66.69 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Transmedics, Inc.$3K
- Edwards Lifesciences$2K
- Abiomed$2K
- Medtronic$2K
- Abbott$1K
- Atricure, Inc.$518
- plus $1K from 12 others
Across 1 payment — averaging $34,951 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.
- Transmedics, Inc.$35K
What the payments were for
- Travel & lodging$3,51630%
- Food & beverage$8,08970%
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 |
|---|---|---|
| Transmedics, Inc. | 2 | $2,742 |
| Edwards Lifesciences | 30 | $2,221 |
| Abiomed | 67 | $2,040 |
| Medtronic(2 entities) | 15 | $1,617 |
| Abbott | 40 | $1,299 |
| Atricure, Inc. | 5 | $518 |
| Bolton Medical Inc | 2 | $275 |
| Kerecis Limited | 2 | $253 |
| Dilon Technologies, Inc. | 1 | $175 |
| Livanova USA, Inc. | 2 | $138 |
| Zimmer Biomet | 1 | $105 |
| Baxter Healthcare | 1 | $79 |
| Boston Scientific | 1 | $32 |
| Terumo Cardiovascular Systems Corporation | 1 | $24 |
| Angiodynamics, Inc. | 1 | $23 |
| La Jolla Pharmaceutical Company | 1 | $23 |
| AbbVie | 1 | $21 |
| Siemens Medical Solutions USA, Inc. | 1 | $19 |
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.
- ORGAN CARE SYSTEM$2,742
- Kerecis Omega3 Marigen$870
- Endurant$690
- COREVALVE EVOLUT R$413
- MITRIS RESILIA Mitral Valve$287
- EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX$277
- TREO ABDOMINAL STENT-GRAFT SYSTEM$275
- THORATEC HEARTMATE 3 LVAS IMPLANT KIT$270
- Kerecis Omega3 SurgiClose$253
- Impella$230
- INSPIRIS RESILIA aortic valve$222
- HemoBlast Bellows$175
- SAPIEN 3 Ultra RESILIA$166
- Kerecis Omega3 GraftGuide$144
- SYNERGY ABLATION SYSTEM$132
- HeartMate$127
- Edwards SAPIEN 3 Transcatheter Heart Valve$125
- Azure$125
- LifeSPARC$123
- Edwards SAPIEN 3 Ultra Transcatheter Heart Valve$118
How this compares
$11,604 in reported general payments places this provider in the 65th percentile of 314 thoracic surgery (cardiothoracic vascular surgery) providers in Pennsylvania.
See all thoracic surgery (cardiothoracic vascular surgery) providers in Pennsylvania →
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 |
|---|---|---|
| Mupirocin | 20 | $144 |
Paid to pharmacies, not to this prescriber.
Other thoracic surgery (cardiothoracic vascular surgery) in Allentown
- Joseph BavariaAllentown$1.7M
- Timothy MisselbeckAllentown$140K
- James WuAllentown$24K
- Basel RamlawiWynnewood$1.1M
- Patrick RossWynnewood$956K
- Mark AndersonPhiladelphia$527K
- Scott GoldmanWynnewood$354K
- Frank BowenCamp Hill$310K
- Michael AckerPhiladelphia$271K
- Wilson SzetoPhiladelphia$252K
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.