Nathan Carberry, MD
Neuromuscular Medicine · Miami, FLNPI 1083147839
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $4,213 of the $4,883 with a category attached, or 86.3%. Biogen accounts for 86.8% of it on its own, with 6 other manufacturers making up the rest. Reporting peaked in 2023 at $4,453 and has fallen 99.4% since, to $25 in 2025.
Across 19 payments — averaging $256.98 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Biogen$4K
- EMD Serono, Inc.$271
- AstraZeneca$141
- Argenx US, Inc.$122
- Biohaven Pharmaceutical Holding Company Ltd.$66
- Teva Pharmaceuticals USA, Inc.$26
- plus $19 from 1 others
Across 1 payment — averaging $371,907 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.
- Novartis$372K
What the payments were for
- Speaking & faculty fees$4,21386%
- Food & beverage$67014%
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 |
|---|---|---|
| Biogen | 2 | $4,238 |
| EMD Serono, Inc. | 9 | $271 |
| AstraZeneca | 2 | $141 |
| Argenx US, Inc. | 1 | $122 |
| Biohaven Pharmaceutical Holding Company Ltd. | 3 | $66 |
| Teva Pharmaceuticals USA, Inc. | 1 | $26 |
| Xeris Pharmaceuticals, Inc. | 1 | $19 |
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
Too few neuromuscular medicine providers in Floridato place this figure against a meaningful peer group, so we don't.
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 | 31 | $409,385 |
| Gamunex-CImmune Globul G/Gly/Iga Avg 46 | 58 | $404,189 |
| GammakedImmune Globul G/Gly/Iga Avg 46 | 35 | $276,683 |
| RelyvrioSod Phenylbutyrat/Taurursodiol | 18 | $232,677 |
| PrivigenImmun Glob G(Igg)/Pro/Iga 0-50 | 14 | $201,242 |
| NuedextaDextromethorphan Hbr/Quinidine | 25 | $37,912 |
| Riluzole | 42 | $5,962 |
| Pyridostigmine Bromide | 16 | $1,948 |
| Gabapentin | 78 | $1,758 |
| Atropine Sulfate | 13 | $1,190 |
| Glycopyrrolate | 17 | $955 |
| Baclofen | 28 | $760 |
| Duloxetine Hcl | 23 | $754 |
| Pregabalin | 31 | $660 |
| Prednisone | 22 | $208 |
Paid to pharmacies, not to this prescriber.
Other neuromuscular medicine in Miami
- Melissa FellmanMiami$436
- Amparo GutierrezOrlando$810K
- Manisha KorbWest Palm Beach$328K
- Michael Rosario-PrietoSt Petersburg$167K
- James WymerGainesville$33K
- Cole LinvilleJacksonville$32K
- Michael TodincaJacksonville Beach$16K
- Sara HuserWest Palm Beach$9K
- Naga Lakshmana NidadavoluSaint Cloud$9K
- Clifton GoochTampa$5K
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.