Louise McCullough, MD
Vascular Neurology · Houston, TXNPI 1447256441
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $13,000 of the $14,216 with a category attached, or 91.4%. Medtronic accounts for 85.2% of it on its own, with 9 other manufacturers making up the rest. Reporting peaked in 2022 at $9,687 and has fallen 82.2% since, to $1,723 in 2024.
Across 27 payments — averaging $526.52 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$12K
- Penumbra, Inc.$2K
- Takeda Pharmaceuticals U.S.A., Inc.$175
- Biogen$60
- Amgen$56
- UCB, Inc.$45
- plus $67 from 4 others
What the payments were for
- Speaking & faculty fees$13,00091%
- Travel & lodging$2832%
- Food & beverage$9337%
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 | 11 | $12,114 |
| Penumbra, Inc. | 1 | $1,700 |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $175 |
| Biogen | 3 | $60 |
| Amgen | 3 | $56 |
| UCB, Inc. | 2 | $45 |
| EMD Serono, Inc. | 1 | $29 |
| Eisai Inc. | 1 | $15 |
| Xeris Pharmaceuticals, Inc. | 1 | $12 |
| Tanabe Pharma America, Inc. | 1 | $12 |
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.
- Penumbra System$1,700
- GAMMAGARD$124
How this compares
$14,216 in reported general payments places this provider in the 85th percentile of 76 vascular neurology 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 vascular neurology in Houston
- John VolpiHouston$407K
- Amrou SarrajHouston$182K
- Sunil ShethHouston$54K
- Haris KamalHouston$21K
- Sean SavitzHouston$20K
- Michael NahhasHouston$10K
- Rajan GadhiaHouston$5K
- Mohammad El-GhanemHouston$5K
- Robert RegenhardtHouston$5K
- Joseph FriesHouston$3K
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.