Junichi Shimamura, MD
Surgery · Valhalla, NYNPI 1962109702
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $8,058 of the $12,118 with a category attached, or 66.5%. 10 manufacturers reported payments, led by Abbott at 28.3% of the total. 2025 is the largest year on record at $7,377, 3.5 times the $2,086 reported in 2023.
Across 91 payments — averaging $133.16 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$3K
- Abiomed$3K
- Transmedics, Inc.$2K
- W. L. Gore & Associates, Inc.$2K
- Medtronic$711
- Atricure, Inc.$654
- plus $618 from 4 others
Across 2 payments — averaging $409.00 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.
- W. L. Gore & Associates, Inc.$750
- Medtronic$68
What the payments were for
- Travel & lodging$8,05866%
- Food & beverage$4,06034%
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 |
|---|---|---|
| Abbott | 28 | $3,433 |
| Abiomed | 37 | $2,560 |
| Transmedics, Inc. | 3 | $2,498 |
| W. L. Gore & Associates, Inc. | 7 | $1,642 |
| Medtronic | 5 | $711 |
| Atricure, Inc. | 5 | $654 |
| Angiodynamics, Inc. | 2 | $241 |
| Artivion, Inc. | 2 | $180 |
| Edwards Lifesciences | 1 | $165 |
| Baxter Healthcare | 1 | $33 |
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$2,498
- TRICLIP$1,356
- Product in Development$1,082
- MitraClip$1,033
- THORATEC HEARTMATE 3 LVAS IMPLANT KIT$595
- GORE TAG Conformable Thoracic Endoprosthesis$535
- COREVALVE EVOLUT R$529
- SYNERGY ABLATION SYSTEM$509
- Impella$413
- AngioVac$210
- LigaSure$167
- Cardiac non-SynerGraft$143
How this compares
$12,118 in reported general payments places this provider in the 85th percentile of 1,596 surgery 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.
Other surgery in Valhalla
- Cheguevara AfanehNew York$1.4M
- Flavio Malcher Martins de OliveiraNew York$695K
- Yuri NovitskyNew York$548K
- Rasa ZarnegarNew York$478K
- Tanuja DamaniNew York$459K
- Benjamin SadowitzSyracuse$419K
- Stephen GoldstoneNy$386K
- Rache SimmonsNew York$371K
- George DenotoManhasset$333K
- Marina KurianNew York$328K
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.