Alan Synn, MD
Vascular Surgery · Denver, CONPI 1912984386
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (52.2%), travel and lodging and other — rather than concentrated in one kind of arrangement. It is spread thinly across 35 manufacturers, the largest accounting for just 18.9%.
Across 200 payments — averaging $80.04 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$3K
- Abbott$3K
- Angiodynamics, Inc.$3K
- Endologix LLC$2K
- Philips North America LLC$1K
- Silk Road Medical, Inc.$588
- plus $3K from 29 others
What the payments were for
- Speaking & faculty fees$1,0006%
- Travel & lodging$3,94025%
- Food & beverage$8,35352%
- Other$2,71517%
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 |
|---|---|---|
| Medtronic(2 entities) | 43 | $3,031 |
| Abbott | 22 | $2,863 |
| Angiodynamics, Inc. | 6 | $2,798 |
| Endologix LLC | 16 | $2,400 |
| Philips North America LLC | 12 | $1,293 |
| Silk Road Medical, Inc. | 8 | $588 |
| Tactile Systems Technology Inc | 8 | $573 |
| Shockwave Medical, Inc | 7 | $376 |
| Lemaitre Vascular, Inc. | 10 | $230 |
| Penumbra, Inc. | 3 | $204 |
| W. L. Gore & Associates, Inc. | 6 | $192 |
| Boston Scientific | 7 | $176 |
| Johnson & Johnson | 9 | $151 |
| Bolton Medical Inc | 3 | $148 |
| Terumo Medical Corporation | 4 | $115 |
| Smith+Nephew | 4 | $115 |
| Baxter Healthcare | 2 | $109 |
| Cardiovascular Systems Inc. | 5 | $101 |
| Bard Peripheral Vascular, Inc. | 3 | $92 |
| Cook Medical LLC | 4 | $78 |
| Inari Medical, Inc. | 3 | $56 |
| Kerecis Limited | 1 | $52 |
| Convatec Inc. | 2 | $36 |
| Globus Medical | 1 | $35 |
| Cardiva Medical, Inc. | 1 | $24 |
| Novartis | 1 | $24 |
| Stryker | 1 | $21 |
| Canon Medical Systems USA, Inc. | 1 | $21 |
| Biosense Webster, Inc. | 1 | $20 |
| Ossur Americas, Inc. | 1 | $19 |
| Reprise Biomedical, Inc. | 1 | $17 |
| E.r. Squibb & Sons, L.L.C. | 1 | $15 |
| Catheter Precision, Inc. FKA Ra Medical Systems, Inc. | 1 | $14 |
| Baudax Bio Inc. | 1 | $11 |
| Advanced Oxygen Therapy Inc. | 1 | $9 |
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.
- Auryon Laser System 100-120 Vac$2,715
- IN.PACT Admiral$1,910
- OMNILINK ELITE$1,442
- Ovation$1,140
- (6554) Periph Vasc Undiv$1,000
- Ovation iX Iliac Stent Graft$679
- ENROUTE Transcarotid Neuroprotection System$464
- ENHANCE Transcarotid Peripheral Access Kit$464
- ENROUTE .014 Guidewire$354
- ENROUTE Transcarotid Stent$354
- SUPERA$351
- Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter$266
- ENDOCROSS Device$240
- Torus Stent Graft System$240
- Alto Abdominal Stent Graft System$166
- Supera peripheral stent system$150
- ESPRIT$147
- ENDURANT IIS$146
- AFX$143
- Indigo System$130
How this compares
$16,009 in reported general payments places this provider in the 75th percentile of 66 vascular surgery providers in Colorado.
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 |
|---|---|---|
| XareltoRivaroxaban | 38 | $41,759 |
| Cilostazol | 22 | $1,401 |
| ClopidogrelClopidogrel Bisulfate | 82 | $777 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Johnson & JohnsonXarelto | $151 | $41,75938 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 75th percentile of 66 vascular surgery providers in Colorado.
Other vascular surgery in Denver
- Brandon Roy-GarlandDenver$190K
- Lisa BennettDenver$30K
- Stephen AnnestDenver$28K
- Omar MubarakDenver$22K
- Alexander LeungDenver$21K
- Charles FoxDenver$11K
- Timothy ChiltonDenver$10K
- Barbara MelendezDenver$7K
- Rebecca UrDenver$4K
- Eric WeinsteinDenver$4K
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.