John Barr, MD
Neuroradiology · Dallas, TXNPI 1679523260
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $186,809 of the $229,457 with a category attached, or 81.4%. Microvention, Inc. accounts for 98.8% of it on its own, with 5 other manufacturers making up the rest. Reporting peaked in 2020 at $56,596 and has fallen 93.6% since, to $3,648 in 2025. Among neuroradiology clinicians in TX with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 153 payments — averaging $1499.72 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Microvention, Inc.$227K
- Canon Medical Systems USA, Inc.$2K
- Siemens Medical Solutions USA, Inc.$406
- Medtronic$218
- Asahi Intecc USA, Inc.$32
- Boston Scientific$25
Across 4 payments — averaging $1443.00 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.
- Medtronic$5K
- Microvention, Inc.$1K
What the payments were for
- Consulting fees$33,93815%
- Speaking & faculty fees$186,80981%
- Travel & lodging$7,4073%
- Food & beverage$1,3041%
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 |
|---|---|---|
| Microvention, Inc. | 141 | $226,775 |
| Canon Medical Systems USA, Inc. | 2 | $2,000 |
| Siemens Medical Solutions USA, Inc. | 5 | $406 |
| Medtronic | 3 | $218 |
| Asahi Intecc USA, Inc. | 1 | $32 |
| Boston Scientific | 1 | $25 |
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.
- WEB Aneurysm Embolization System$152,160
- WEB$24,773
- Scepter C Balloon Catheter$14,901
- Scepter XC Balloon Catheter$14,901
- ROADSAVER$7,700
- PHIL$4,900
- INTERVENTIONAL ANGIOGRAPHY SYSTEM$2,000
- FRED$400
- Artis Q$267
- HYDROSOFT ADVANCED$263
- OSTEOCOOL RF ABLATION SYSTEM$199
- syngo X Workplace$132
- STENT$132
How this compares
$229,457 in reported general payments places this provider in the 95th percentile of 59 neuroradiology providers in Texas.
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 neuroradiology in Dallas
- Phillip PurdyDallas$80K
- Mohammed AlabdulkareemDallas$2K
- Noha ElghitanyDallas$1K
- Uday KanamallaDallas$447
- Michael GinsburgDallas$195
- Carolyn WoodsDallas$83
- Patrick RockDallas$82
- Mesha MartinezHutto$55K
- Raza MushtaqLakeway$10K
- Bao Tram NguyenPlano$10K
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.