Christopher Tanga, DO
Vascular Surgery · North Dartmouth, MANPI 1811312564
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (36.6%), speaking fees and travel and lodging — rather than concentrated in one kind of arrangement. Penumbra, Inc. accounts for 65.4% of it on its own, with 24 other manufacturers making up the rest. 2025 is the largest year on record at $11,536, 7.6 times the $1,525 reported in 2019.
Across 225 payments — averaging $132.54 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Penumbra, Inc.$20K
- W. L. Gore & Associates, Inc.$5K
- Medtronic$1K
- Boston Scientific$506
- Abbott$485
- Endologix LLC$460
- plus $3K from 19 others
What the payments were for
- Speaking & faculty fees$10,80036%
- Travel & lodging$5,96520%
- Food & beverage$10,92937%
- Education$2,1277%
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 |
|---|---|---|
| Penumbra, Inc. | 35 | $19,512 |
| W. L. Gore & Associates, Inc. | 69 | $4,931 |
| Medtronic(2 entities) | 14 | $1,271 |
| Boston Scientific | 11 | $506 |
| Abbott | 31 | $485 |
| Endologix LLC | 7 | $460 |
| Shockwave Medical, Inc | 13 | $398 |
| Silk Road Medical, Inc. | 4 | $330 |
| Cardiovascular Systems Inc. | 2 | $283 |
| Bolton Medical Inc | 2 | $276 |
| Contego Medical, Inc | 2 | $208 |
| Philips North America LLC | 6 | $178 |
| Bard Peripheral Vascular, Inc. | 3 | $171 |
| Inari Medical, Inc. | 1 | $165 |
| Getinge USA Sales, LLC | 8 | $154 |
| Veryan Medical Incorporated | 3 | $117 |
| Cook Medical LLC | 1 | $104 |
| Lemaitre Vascular, Inc. | 3 | $59 |
| Johnson & Johnson | 3 | $58 |
| Pfizer | 2 | $39 |
| KCI USA, Inc. | 1 | $36 |
| AstraZeneca | 1 | $22 |
| Tactile Systems Technology Inc | 1 | $22 |
| Terumo Medical Corporation | 1 | $19 |
| Stryker | 1 | $18 |
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.
- Indigo System$15,396
- RUBY Coil$3,691
- EXCLUDER AAA Endoprosthesis$804
- GORE EXCLUDER AAA Endoprosthesis$749
- GORE EXCLUDER Thoracoabdominal Branch Endoprosthesis$659
- GORE TAG Thoracic Endoprosthesis$504
- ENDURANT IIS$389
- GORE VIABAHN VBX Balloon Expandable Endo$371
- FLOWTRIEVER CATHETER, S$330
- Diamondback Peripheral$283
- TREO ABDOMINAL STENT-GRAFT SYSTEM$276
- Ovation$269
- Vascular Graft$259
- ENROUTE Transcarotid Stent$225
- ENROUTE Transcarotid Neuroprotection System$225
- GORE ACUSEAL Vascular Graft$187
- Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter$150
- Penumbra System$129
- IN.PACT Admiral$127
- ANGIOJET$121
How this compares
$29,821 in reported general payments places this provider in the 85th percentile of 142 vascular surgery providers in Massachusetts.
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 | 37 | $21,462 |
| EliquisApixaban | 17 | $12,752 |
| BrilintaTicagrelor | 11 | $4,998 |
| ClopidogrelClopidogrel Bisulfate | 145 | $2,006 |
| Cilostazol | 57 | $1,401 |
| Atorvastatin Calcium | 131 | $1,018 |
| Diazepam | 13 | $15 |
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 | $58 | $21,46237 claims |
| PfizerEliquis | $39 | $12,75217 claims |
| AstraZenecaBrilinta | $22 | $4,99811 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 85th percentile of 142 vascular surgery providers in Massachusetts.
Other vascular surgery in North Dartmouth
- Richard PinNorth Dartmouth$73K
- David GillespieNorth Dartmouth$13K
- Mark PerryNorth Dartmouth$6K
- Thomas OdonnellBoston$845K
- Scott JamesPlymouth$199K
- Anahita DuaBoston$186K
- Dejah JudelsonWorcester$92K
- Jonathan GertlerWeston$90K
- Andres SchanzerWorcester$84K
- Marc SchermerhornBoston$71K
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.