Warren Felton, MD
Neurology · Richmond, VANPI 1598783680
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $87,040 of the $96,206 with a category attached, or 90.5%. AstraZeneca accounts for 96.3% of it on its own, with 11 other manufacturers making up the rest. Among neurology clinicians in VA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 91 payments — averaging $1057.21 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$93K
- Biogen$2K
- EMD Serono, Inc.$435
- Amgen$427
- Genentech USA, Inc.$357
- Sanofi$234
- plus $432 from 6 others
Across 75 payments — averaging $3009.61 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.
- Chugai Pharmaceutical Co., Ltd.$58K
- Roche Products Limited$55K
- Biogen$42K
- EMD Serono, Inc.$39K
- Mallinckrodt Hospital Products Inc.$13K
- Mallinckrodt Enterprises LLC$7K
- plus $13K from 2 others
What the payments were for
- Consulting fees$1,6132%
- Speaking & faculty fees$87,04090%
- Travel & lodging$3,5974%
- Food & beverage$3,4744%
- Education$4821%
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 |
|---|---|---|
| AstraZeneca | 65 | $92,617 |
| Biogen | 4 | $1,703 |
| EMD Serono, Inc. | 6 | $435 |
| Amgen(2 entities) | 5 | $427 |
| Genentech USA, Inc. | 3 | $357 |
| Sanofi | 2 | $234 |
| Eisai Inc. | 1 | $125 |
| E.r. Squibb & Sons, L.L.C. | 1 | $122 |
| Chiesi USA, Inc. | 1 | $108 |
| Medtronic | 1 | $38 |
| Novartis | 1 | $23 |
| Viz.ai, Inc. | 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.
How this compares
$96,206 in reported general payments places this provider in the 90th percentile of 474 neurology providers in Virginia.
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 |
|---|---|---|
| Avonex Pen (4 Pack)Interferon Beta-1a | 12 | $183,450 |
| BetaseronInterferon Beta-1b | 12 | $135,904 |
| Gammagard LiquidImmun Glob G(Igg)/Gly/Iga Ov50 | 13 | $65,081 |
| Nurtec OdtRimegepant Sulfate | 11 | $23,830 |
| Aimovig AutoinjectorErenumab-Aooe | 22 | $18,021 |
| Gabapentin | 105 | $3,372 |
| Acetazolamide ErAcetazolamide | 19 | $2,533 |
| Baclofen | 50 | $1,213 |
| Acetazolamide | 16 | $965 |
| Levetiracetam | 12 | $795 |
| Nortriptyline Hcl | 44 | $719 |
| Tizanidine Hcl | 26 | $622 |
| Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine | 20 | $541 |
| Topiramate | 32 | $537 |
| Memantine Hcl | 22 | $379 |
Paid to pharmacies, not to this prescriber.
Other neurology in Richmond
- Catherine HamRichmond$603K
- Daniel HardyRichmond$382K
- Myla GoldmanRichmond$132K
- Alan SchulmanRichmond$104K
- John WittmanRichmond$61K
- Matthew BoyceRichmond$56K
- Leslie CloudRichmond$46K
- Jonathan BekensteinRichmond$37K
- Jessica LehositRichmond$35K
- Claudia TestaRichmond$29K
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.