Bret Warner, MD
Neurology · Greenwood, SCNPI 1487654034
Payments from drug & device makers
Across 108 payments — averaging $18.85 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$1K
- Supernus Pharmaceuticals, Inc.$330
- EMD Serono, Inc.$146
- Averitas Pharma Inc.$106
- Livanova USA, Inc.$70
- Cala Health, Inc.$50
- plus $320 from 15 others
What the payments were for
- Food & beverage$2,00699%
- Education$301%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| AbbVie(2 entities) | 57 | $1,013 |
| Supernus Pharmaceuticals, Inc. | 18 | $330 |
| EMD Serono, Inc. | 8 | $146 |
| Averitas Pharma Inc. | 4 | $106 |
| Livanova USA, Inc. | 1 | $70 |
| Cala Health, Inc. | 2 | $50 |
| Sunovion Pharmaceuticals Inc. | 2 | $32 |
| E.r. Squibb & Sons, L.L.C. | 2 | $30 |
| Abbott | 2 | $28 |
| Biogen | 1 | $27 |
| Argenx US, Inc. | 1 | $27 |
| Sanofi | 1 | $27 |
| Johnson & Johnson | 1 | $21 |
| Otsuka America Pharmaceutical, Inc. | 1 | $20 |
| GE HealthCare | 1 | $19 |
| SK Life Science, Inc. | 1 | $17 |
| Amgen | 1 | $16 |
| Catalyst Pharmaceuticals, Inc. | 1 | $15 |
| Teva Pharmaceuticals USA, Inc. | 1 | $15 |
| Lilly USA, LLC | 1 | $14 |
| Pfizer | 1 | $12 |
How this compares
$2,035 in reported general payments places this provider in the 55th percentile of 270 neurology providers in South Carolina.
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 |
|---|---|---|
| GammakedImmune Globul G/Gly/Iga Avg 46 | 20 | $346,831 |
| Rebif RebidoseInterferon Beta-1a/Albumin | 19 | $236,591 |
| PanzygaImmun Glob G(Igg)-Ifas/Glycine | 34 | $222,241 |
| GlatopaGlatiramer Acetate | 24 | $118,006 |
| PrivigenImmun Glob G(Igg)/Pro/Iga 0-50 | 16 | $101,498 |
| NucyntaTapentadol Hcl | 25 | $25,025 |
| Emgality PenGalcanezumab-Gnlm | 29 | $20,437 |
| UbrelvyUbrogepant | 14 | $20,430 |
| Aimovig AutoinjectorErenumab-Aooe | 21 | $20,251 |
| Memantine Hcl | 494 | $18,332 |
| NuedextaDextromethorphan Hbr/Quinidine | 11 | $17,406 |
| Lacosamide | 195 | $17,126 |
| BotoxOnabotulinumtoxina | 16 | $16,790 |
| AptiomEslicarbazepine Acetate | 13 | $15,253 |
| RytaryCarbidopa/Levodopa | 12 | $14,637 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| PfizerPanzyga | $12 | $222,24134 claims |
| AbbVieUbrelvy, Botox | $1,013 | $37,22030 claims |
| Sunovion Pharmaceuticals Inc.Aptiom | $32 | $15,25313 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 55th percentile of 270 neurology providers in South Carolina.
Other neurology in Greenwood
- Mary HughesGreenville$6.3M
- William McElveenColumbia$3.7M
- Robert CarlileSummerville$2.3M
- Andrew KeeganCharleston$2.2M
- Paul MazzeoPort Royal$1.7M
- Vanessa HinsonCharleston$1.5M
- David SticklerNorth Charleston$1.2M
- Katherine RuzhanskyCharleston$1.1M
- Nicholas MilanoCharleston$1.1M
- Howard MandellRock Hill$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.