Osaid Ahmad, MD
Nephrology · Neenah, WINPI 1689618589
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $771 of the $1,042 with a category attached, or 74.0%. 16 manufacturers reported payments, led by GSK at 31.7% of the total. Reporting peaked in 2023 at $271 and has fallen 84.9% since, to $41 in 2025.
Across 48 payments — averaging $21.70 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GSK$330
- Vifor Pharma, Inc.$296
- Otsuka America Pharmaceutical, Inc.$78
- Sanofi$68
- OPKO Pharmaceuticals, LLC$58
- Amicus Therapeutics, Inc.$28
- plus $183 from 10 others
What the payments were for
- Speaking & faculty fees$20019%
- Food & beverage$77174%
- Education$707%
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.
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.
- Veltassa$200
How this compares
$1,042 in reported general payments places this provider in the 70th percentile of 173 nephrology providers in Wisconsin.
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 |
|---|---|---|
| Sevelamer Carbonate | 38 | $8,828 |
| Calcium Acetate | 28 | $4,688 |
| Calcitriol | 49 | $1,132 |
| Furosemide | 88 | $1,009 |
| Lisinopril | 39 | $386 |
| Amlodipine Besylate | 47 | $337 |
| Losartan Potassium | 24 | $260 |
| Doxazosin Mesylate | 12 | $236 |
| Midodrine Hcl | 15 | $228 |
| Metoprolol Succinate | 15 | $140 |
| Carvedilol | 11 | $96 |
Paid to pharmacies, not to this prescriber.
Other nephrology in Neenah
- Atif QureshiNeenah$6K
- David KoeperNeenah$5K
- Imran BalochNeenah$791
- Kevin RegnerMilwaukee$246K
- Rosanna RanieriKenosha$84K
- Micah ChanFitchburg$80K
- Rishi KoraGlendale$57K
- Manohar AhujaMilwaukee$35K
- Ashraf El MeanawyMilwaukee$30K
- Anna GaddyMilwaukee$28K
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.