Physician profile
John Marc Shellenberger
NPI 1548600992
$2,981.68
in general payments reported to CMS, 2019-2025
22 companies · $453 in 2025
The $453 reported for 2025 was more than what a typical Surgical Critical Care provider received nationally (typical 2025 total: $234).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $383 · 2020: $290 · 2021: $146 · 2022: $355 · 2023: $1,113 · 2024: $242 · 2025: $453.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $1,176 · Travel and Lodging: $631.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $1,176.49 |
| Travel and Lodging | $631.10 |
Payment-type detail covers 2023-2025; earlier years are included in totals but not broken out here.
Who reported paying
General payments only, as reported to CMS. Product names cover 2023-2025.
| Company | General payments | Years | Top products |
|---|---|---|---|
| Allergan, INC. | $839.05 | 2019-2022 | |
| Zimmer Biomet Holdings, INC. | $673.78 | 2023 | Advantagerib |
| Astrazeneca Pharmaceuticals Lp | $265.23 | 2023-2024 | Andexxa |
| Becton, Dickinson and Company | $185.67 | 2024-2025 | Phasix Mesh |
| Intuitive Surgical, INC. | $144.48 | 2025 | |
| Acell, INC. | $117.10 | 2019 | |
| Haemonetics Corporation | $110.23 | 2024 | Teg6s Hemostasis System |
| Abbvie INC. | $97.14 | 2023 | Strattice Reconstructive Tissue Matrix Bps |
| Depuy Synthes Sales INC. | $73.40 | 2025 | |
| Medtronic, INC. | $55.72 | 2022 | |
| Smith+Nephew, INC. | $52.67 | 2023-2024 | Collagenase Santyl, Grafix |
| Tei Biosciences INC | $52.51 | 2019 | |
| Integra Lifesciences Corporation | $48.41 | 2020-2023 | Tenoglide |
| Polynovo North America LLC | $48.11 | 2022-2024 | Novosorb Btm |
| Viz.Ai, INC. | $45.34 | 2022 |
Show all 22 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Aroa Biosurgery Incorporated | $37.87 | 2025 | |
| Atricure, INC. | $37.81 | 2023 | |
| Ethicon US, LLC | $27.16 | 2025 | Vistaseal, Harmonic |
| Teleflex LLC | $22.14 | 2023 | Quikclot |
| Potrero Medical, INC. | $17.79 | 2024 | |
| Kls-Martin L.P. | $16.41 | 2024 | |
| Kci USA, INC. | $13.66 | 2021 |
Drugs and devices associated with these payments
CMS records which products a payment was associated with, not how the money was allocated. Association is not allocation: one payment can be associated with several products, and a product listing does not mean the payment was made because of that product. Product detail covers 2023-2025.
If you want to bring it up
Most clinicians are glad to talk about this. A respectful way in:
- "I saw John Marc Shellenberger listed in the CMS Open Payments database. Can you tell me about your work with those companies?"
- "Is there a generic or alternative to this medication, and would it work as well for me?"
- "What made you choose this particular treatment for my situation?"
These are normal questions. A good clinician will welcome them.
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Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.