Wahab Khan, MD
Internal Medicine · Sioux Falls, SDNPI 1689195000
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $386 of the $530 with a category attached, or 72.7%. 12 manufacturers reported payments, led by Abbott at 27.3% of the total.
Across 15 payments — averaging $35.36 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$145
- Scpharmaceuticals Inc.$75
- Pfizer$60
- Stryker$49
- Kestra Medical Technology Services, Inc.$47
- Bayer$36
- plus $119 from 6 others
What the payments were for
- Food & beverage$38673%
- Education$14527%
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.
| Company | Payments | Total |
|---|---|---|
| Abbott | 1 | $145 |
| Scpharmaceuticals Inc. | 1 | $75 |
| Pfizer | 3 | $60 |
| Stryker | 1 | $49 |
| Kestra Medical Technology Services, Inc. | 1 | $47 |
| Bayer | 2 | $36 |
| Chiesi USA, Inc. | 1 | $30 |
| AstraZeneca | 1 | $22 |
| Viatris Specialty LLC | 1 | $20 |
| Verona Pharma, Inc. | 1 | $17 |
| CSL Behring | 1 | $17 |
| Abiomed | 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.
- ENSITE$145
How this compares
$530 in reported general payments places this provider in the 80th percentile of 178 internal medicine providers in South Dakota.
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 |
|---|---|---|
| Atorvastatin Calcium | 25 | $381 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Sioux Falls
- Janell PowellSioux Falls$7K
- Maaz BadshahSioux Falls$6K
- Wendy VetterSioux Falls$5K
- Jeffrey HeierSioux Falls$4K
- Shristi Upadhyay BanskotaSioux Falls$3K
- Anup ShresthaSioux Falls$1K
- Whitnee OttoSioux Falls$1K
- Alla ZamulkoSioux Falls$969
- Chirag PatelSioux Falls$924
- Brooke MadsonSioux Falls$760
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.