John Absher, MD
Neurology · Greenville, SCNPI 1417949751
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $23,213 of the $30,222 with a category attached, or 76.8%. Eisai Inc. accounts for 93.8% of it on its own, with 27 other manufacturers making up the rest. Reporting peaked in 2024 at $13,487 and has fallen 60.1% since, to $5,384 in 2025. Among neurology clinicians in SC 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 163 payments — averaging $185.41 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Eisai Inc.$28K
- AbbVie$208
- Supernus Pharmaceuticals, Inc.$187
- AstraZeneca$151
- Novartis$137
- Biogen$135
- plus $1K from 22 others
What the payments were for
- Consulting fees$3,82313%
- Speaking & faculty fees$23,21377%
- Travel & lodging$7913%
- Food & beverage$2,2768%
- Education$1190%
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 |
|---|---|---|
| Eisai Inc. | 36 | $28,353 |
| AbbVie(2 entities) | 9 | $208 |
| Supernus Pharmaceuticals, Inc. | 35 | $187 |
| AstraZeneca | 3 | $151 |
| Novartis | 7 | $137 |
| Biogen | 7 | $135 |
| Acadia Pharmaceuticals Inc | 14 | $129 |
| Teva Pharmaceuticals USA, Inc. | 11 | $119 |
| Akcea Therapeutics, Inc. | 1 | $111 |
| Sunovion Pharmaceuticals Inc. | 5 | $88 |
| Merz North America, Inc. | 4 | $74 |
| Alnylam Pharmaceuticals Inc. | 4 | $66 |
| Philips North America LLC | 2 | $65 |
| EMD Serono, Inc. | 4 | $54 |
| Acorda Therapeutics, Inc | 3 | $46 |
| Mallinckrodt Enterprises LLC | 2 | $42 |
| Johnson & Johnson | 1 | $32 |
| Avanir Pharmaceuticals, Inc. | 2 | $30 |
| E.r. Squibb & Sons, L.L.C. | 2 | $30 |
| Catalyst Pharmaceuticals, Inc. | 2 | $30 |
| Neurocrine Biosciences, Inc. | 2 | $28 |
| Amgen | 1 | $21 |
| Upsher-smith Laboratories LLC | 1 | $19 |
| Ipsen Biopharmaceuticals, Inc | 1 | $16 |
| Bausch Health US, LLC | 1 | $15 |
| UCB, Inc. | 1 | $12 |
| Grifols USA, LLC | 1 | $12 |
| MDD US Operations, LLC | 1 | $11 |
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
$30,222 in reported general payments places this provider in the 90th 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 |
|---|---|---|
| Memantine Hcl | 105 | $7,622 |
| Clobazam | 12 | $3,034 |
| Rivastigmine | 13 | $1,578 |
| Donepezil Hcl | 96 | $1,357 |
| Lacosamide | 13 | $1,089 |
| RivastigmineRivastigmine Tartrate | 24 | $983 |
| Gabapentin | 28 | $401 |
| Mirtazapine | 23 | $382 |
| Quetiapine Fumarate ErQuetiapine Fumarate | 11 | $346 |
| Levetiracetam | 16 | $328 |
| Carbidopa-LevodopaCarbidopa/Levodopa | 13 | $323 |
| Escitalopram Oxalate | 31 | $254 |
| Risperidone | 20 | $170 |
| Trazodone Hcl | 36 | $153 |
| Propranolol Hcl ErPropranolol Hcl | 12 | $138 |
Paid to pharmacies, not to this prescriber.
Other neurology in Greenville
- Mary HughesGreenville$404K
- Fredy RevillaGreenville$208K
- Kathleen WoschkolupGreenville$97K
- Sandip JainGreenville$43K
- Amber StutzGreenville$26K
- John PorterGreenville$17K
- Brian ThompsonGreenville$11K
- John BakerSumter$779K
- Robert CarlileSummerville$428K
- Jose CardenasAiken$216K
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.