Derrick Fox, MD
Neurology · Columbia, MDNPI 1336403237
Payments from drug & device makers
Across 28 payments — averaging $1072.57 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$28K
- Argenx US, Inc.$2K
- AstraZeneca$239
- AbbVie$170
- Johnson & Johnson$51
- Lundbeck LLC$23
- plus $87 from 4 others
What the payments were for
- Consulting fees$1,68871%
- Food & beverage$67529%
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 |
|---|---|---|
| Amgen(2 entities) | 5 | $27,714 |
| Argenx US, Inc. | 3 | $1,749 |
| AstraZeneca(2 entities) | 6 | $239 |
| AbbVie | 7 | $170 |
| Johnson & Johnson | 2 | $51 |
| Lundbeck LLC | 1 | $23 |
| Genentech USA, Inc. | 1 | $23 |
| Acadia Pharmaceuticals Inc | 1 | $23 |
| Livanova USA, Inc. | 1 | $21 |
| Lilly USA, LLC | 1 | $19 |
How this compares
$30,032 in reported general payments places this provider in the 75th percentile of 442 neurology providers in Maryland.
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 |
|---|---|---|
| Radicava OrsEdaravone | 22 | $313,511 |
| Pyridostigmine Bromide ErPyridostigmine Bromide | 13 | $3,660 |
| Pyridostigmine Bromide | 36 | $3,151 |
| Dalfampridine ErDalfampridine | 20 | $2,669 |
| Mycophenolate Mofetil | 22 | $1,977 |
| Riluzole | 14 | $1,213 |
| Gabapentin | 53 | $535 |
| Teriflunomide | 12 | $489 |
| Duloxetine Hcl | 11 | $440 |
| Carbidopa-LevodopaCarbidopa/Levodopa | 24 | $423 |
| Baclofen | 22 | $190 |
| Cyclobenzaprine Hcl | 16 | $167 |
| Prednisone | 13 | $78 |
| Donepezil Hcl | 11 | $19 |
Paid to pharmacies, not to this prescriber.
Other neurology in Columbia
- Jose MasdeuBethesda$5.8M
- Ellen MowryBaltimore$5.7M
- Daniel BeckerLutherville$4.2M
- Michael PolydefkisBaltimore$4.1M
- Pavel KleinBethesda$3.2M
- Jeffrey RothsteinBaltimore$3M
- Pavan BhargavaBaltimore$2.8M
- Thomas CrawfordBaltimore$2.4M
- Nicholas MaragakisBaltimore$2.2M
- Shiv SaidhaBaltimore$2.1M
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.