Gerard Silvestri, MD
Pulmonary Disease · Charleston, SCNPI 1417922865
Payments from drug & device makers
Across 278 payments — averaging $4159.69 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$468K
- Veran Medical Technologies, Inc.$154K
- Olympus Corporation Of The Americas$133K
- Johnson & Johnson$125K
- Olympus Corporation$109K
- AstraZeneca$39K
- plus $130K from 17 others
Across 1 payment — averaging $1290.00 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.
- Boehringer Ingelheim International GmbH$1K
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 |
|---|---|---|
| Amgen | 5 | $467,527 |
| Veran Medical Technologies, Inc. | 15 | $153,523 |
| Olympus Corporation Of The Americas | 62 | $132,834 |
| Johnson & Johnson | 24 | $125,181 |
| Olympus Corporation | 27 | $108,982 |
| AstraZeneca | 38 | $38,834 |
| Olympus America Inc. | 40 | $29,516 |
| Gyrus ACMI, Inc. | 27 | $23,894 |
| Boston Scientific | 4 | $21,788 |
| Spiration, Inc. | 3 | $13,019 |
| Concordia Laboratories Inc. | 4 | $10,851 |
| Boehringer Ingelheim International GmbH | 3 | $6,510 |
| Astrazeneca UK Limited | 2 | $6,237 |
| Sanofi | 3 | $4,033 |
| Olympus Medical Systems Corporation | 5 | $3,460 |
| Auris Health, Inc. | 4 | $2,875 |
| Exact Sciences | 2 | $2,640 |
| Boehringer Ingelheim Canada Ltd.ltee | 1 | $2,000 |
| Eli Lilly | 1 | $1,600 |
| Medtronic | 2 | $585 |
| ERBE USA Inc | 1 | $198 |
| Intuitive Surgical | 2 | $172 |
| Regeneron Healthcare Solutions, Inc. | 3 | $137 |
How this compares
$1,156,395 in reported general payments places this provider in the 90th percentile of 192 pulmonary disease providers in South 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.
Other pulmonary disease in Charleston
- Patrick FlumeCharleston$4.6M
- Barry SigalCharleston$1.4M
- Rachana KrishnaCharleston$1M
- John HugginsCharleston$885K
- Timothy WhelanCharleston$885K
- Walter JamesCharleston$109K
- John CoxCharleston$95K
- Denise Gabrielle SeseCharleston$75K
- Lauren SullivanCharleston$57K
- Marc JudsonCharleston$39K
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.