Marshall Walker, MD
Vascular & Interventional Radiology · Mobile, ALNPI 1619295441
Payments from drug & device makers
What this record shows
21 manufacturers reported payments, led by Boston Scientific at 43.3% of the total. Reporting peaked in 2019 at $2,846 and has fallen 95.6% since, to $125 in 2025.
Across 75 payments — averaging $93.54 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$3K
- Stryker$1K
- Bard Peripheral Vascular, Inc.$1K
- Penumbra, Inc.$283
- Nevro Corp.$273
- Medtronic$216
- plus $1K from 15 others
What the payments were for
- Travel & lodging$3,89355%
- Food & beverage$3,12245%
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 |
|---|---|---|
| Boston Scientific | 19 | $3,037 |
| Stryker | 6 | $1,131 |
| Bard Peripheral Vascular, Inc. | 6 | $1,049 |
| Penumbra, Inc. | 2 | $283 |
| Nevro Corp. | 7 | $273 |
| Medtronic(2 entities) | 6 | $216 |
| Spinal Simplicity, LLC | 5 | $148 |
| Painteq LLC | 2 | $148 |
| Vertos Medical, Inc. | 2 | $132 |
| Route 92 Medical, Inc. | 1 | $125 |
| Siemens Medical Solutions USA, Inc. | 2 | $111 |
| Forte Bio-pharma LLC | 1 | $80 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 5 | $73 |
| Cook Medical LLC | 3 | $49 |
| GE HealthCare | 2 | $37 |
| Abbott | 1 | $25 |
| Relievant Medsystems, Inc. | 1 | $25 |
| Terumo Medical Corporation | 1 | $22 |
| Curonix LLC | 1 | $21 |
| Angiodynamics, Inc. | 1 | $17 |
| MML US, Inc. | 1 | $14 |
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.
- IVS - VERTEBRAL AUGMENTATION PRODUCTS$1,069
- DIREXION$945
- Indigo System$142
- RUBY Coil$141
- Senza$132
- GENERAL NON VASCULAR INTERVENTION$124
- EMBOZENE$117
- HA MINUTEMAN G3-R$113
- PAINTEQ$112
How this compares
$7,016 in reported general payments places this provider in the 70th percentile of 39 vascular & interventional radiology providers in Alabama.
See all vascular & interventional radiology providers in Alabama →
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 |
|---|---|---|
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 190 | $10,553 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 285 | $7,689 |
| Gabapentin | 146 | $1,603 |
| Celecoxib | 73 | $1,488 |
| Oxycodone Hcl | 75 | $969 |
| Tizanidine Hcl | 50 | $803 |
| Diclofenac Sodium | 59 | $751 |
| Methocarbamol | 58 | $720 |
| Lidocaine | 11 | $676 |
| Tramadol Hcl-AcetaminophenTramadol Hcl/Acetaminophen | 55 | $627 |
| Tramadol Hcl | 43 | $390 |
| Acetaminophen-CodeineAcetaminophen With Codeine | 24 | $342 |
| Ibuprofen | 23 | $253 |
| Pregabalin | 20 | $209 |
| Cyclobenzaprine Hcl | 23 | $171 |
Paid to pharmacies, not to this prescriber.
Other vascular & interventional radiology in Mobile
- Marshall HutchisonMobile$10K
- Derek SamuelsMobile$9K
- Charles GastonMobile$6K
- Austin TruppMobile$4K
- Patrick PattenMobile$3K
- Venkatesh KrishnasamyBirmingham$232K
- David KimHuntsville$191K
- Robert TomaltyHuntsville$110K
- Austin BourgeoisHuntsville$100K
- Junjian HuangBirmingham$76K
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.