Douglas Nathanson, MD
Neurology · Iowa City, IANPI 1679679484
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $41,412 of the $46,618 with a category attached, or 88.8%. 11 manufacturers reported payments, led by Biogen at 43.6% of the total. Among neurology clinicians in IA 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 84 payments — averaging $554.97 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Biogen$20K
- Bristol Myers Squibb$9K
- Sanofi$7K
- Novartis$6K
- E.r. Squibb & Sons, L.L.C.$3K
- Teva Pharmaceuticals USA, Inc.$288
- plus $564 from 5 others
What the payments were for
- Consulting fees$1,9444%
- Speaking & faculty fees$41,41289%
- Travel & lodging$910%
- Food & beverage$3,0707%
- Education$1010%
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 | 25 | $20,303 |
| Bristol Myers Squibb | 9 | $9,404 |
| Sanofi | 13 | $7,212 |
| Novartis | 20 | $5,532 |
| E.r. Squibb & Sons, L.L.C. | 3 | $3,314 |
| Teva Pharmaceuticals USA, Inc. | 3 | $288 |
| EMD Serono, Inc. | 5 | $284 |
| AstraZeneca | 2 | $132 |
| Lilly USA, LLC | 2 | $74 |
| Medtronic | 1 | $54 |
| Acorda Therapeutics, Inc | 1 | $22 |
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
$46,618 in reported general payments places this provider in the 90th percentile of 132 neurology providers in Iowa.
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 |
|---|---|---|
| Gabapentin | 37 | $484 |
| Donepezil Hcl | 20 | $134 |
| Memantine Hcl | 11 | $120 |
Paid to pharmacies, not to this prescriber.
Other neurology in Iowa City
- Sami Al KasabIowa City$11K
- Sikawat ThanaviratananichIowa City$4K
- Jun KimuraIowa City$3K
- Tracey ChoIowa City$3K
- Peyman Petram FarIowa City$3K
- Aygun AsgarliIowa City$2K
- Ann KilloranIowa City$1K
- Devakumaran KumarIowa City$1K
- Christine GillIowa City$974
- Lee NeilsonIowa City$919
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.