Sameer Khan, MD
Internal Medicine · Washington, DCNPI 1205364759
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $25,891 of the $28,506 with a category attached, or 90.8%. Madrigal Pharmaceuticals accounts for 86.3% of it on its own, with 12 other manufacturers making up the rest. 2025 is the largest year on record at $27,796, more than ten times the $120 reported in 2021. Among internal medicine clinicians in DC with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 60 payments — averaging $475.10 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Madrigal Pharmaceuticals$25K
- Ipsen Biopharmaceuticals, Inc$3K
- AbbVie$273
- Takeda Pharmaceuticals U.S.A., Inc.$226
- Gilead$161
- E.r. Squibb & Sons, L.L.C.$120
- plus $253 from 7 others
What the payments were for
- Speaking & faculty fees$25,89191%
- Food & beverage$2,6159%
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 |
|---|---|---|
| Madrigal Pharmaceuticals | 22 | $24,604 |
| Ipsen Biopharmaceuticals, Inc | 5 | $2,869 |
| AbbVie | 7 | $273 |
| Takeda Pharmaceuticals U.S.A., Inc. | 6 | $226 |
| Gilead | 9 | $161 |
| E.r. Squibb & Sons, L.L.C. | 1 | $120 |
| Pfizer | 2 | $61 |
| Intercept Pharmaceuticals, Inc. | 2 | $52 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 2 | $50 |
| Mallinckrodt Hospital Products Inc. | 1 | $39 |
| Ardelyx, Inc. | 1 | $19 |
| Regeneron Healthcare Solutions, Inc. | 1 | $17 |
| Boston Scientific | 1 | $14 |
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
$28,506 in reported general payments places this provider in the 95th percentile of 645 internal medicine providers in District of Columbia.
See all internal medicine providers in District of Columbia →
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 |
|---|---|---|
| Esomeprazole Magnesium | 12 | $256 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Washington
- Andrea SingerWashington$850K
- Kathryn SowerwineWashington$831K
- Douglas WardWashington$233K
- Geoffrey GibneyWashington$185K
- Kevin GriffithsWashington$180K
- Bruce RashbaumWashington$86K
- Jessica Wang-MemoliWashington$56K
- Dana McGintyWashington$47K
- Geeta NayyarWashington$46K
- Marie BorumWashington$42K
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.