Houman Nourkeyhani, MD
Hematology & Oncology · Sioux Falls, SDNPI 1184935652
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 10 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 6 manufacturers reported payments, led by Gilead at 30.1% of the total. Reporting peaked in 2019 at $100 and has fallen 73.9% since, to $26 in 2025. That places this record below the midpoint for hematology & oncology clinicians in SD, where the typical reported total is $811.
Across 10 payments — averaging $15.72 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Gilead$47
- Novartis$31
- Merck$26
- Pharmacyclics LLC, An Abbvie Company$25
- Johnson & Johnson$15
- Takeda Pharmaceuticals U.S.A., Inc.$13
Across 1 payment — averaging $3000.00 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.
- Pfizer$3K
What the payments were for
- Food & beverage$157100%
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 |
|---|---|---|
| Gilead | 3 | $47 |
| Novartis | 2 | $31 |
| Merck | 1 | $26 |
| Pharmacyclics LLC, An Abbvie Company | 2 | $25 |
| Johnson & Johnson | 1 | $15 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $13 |
How this compares
$157 in reported general payments places this provider in the 20th percentile of 28 hematology & oncology 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 |
|---|---|---|
| KisqaliRibociclib Succinate | 26 | $408,860 |
| CabometyxCabozantinib S-Malate | 14 | $344,664 |
| VerzenioAbemaciclib | 20 | $306,264 |
| XtandiEnzalutamide | 12 | $176,635 |
| NubeqaDarolutamide | 12 | $144,062 |
| EliquisApixaban | 31 | $22,505 |
| LapatinibLapatinib Ditosylate | 11 | $16,478 |
| Imatinib Mesylate | 20 | $11,480 |
| XareltoRivaroxaban | 12 | $8,857 |
| Letrozole | 90 | $5,653 |
| Anastrozole | 90 | $5,114 |
| Tamoxifen Citrate | 57 | $1,915 |
| Ondansetron Hcl | 173 | $1,299 |
| Potassium Chloride | 60 | $1,121 |
| Lidocaine-PrilocaineLidocaine/Prilocaine | 86 | $944 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| NovartisKisqali | $31 | $408,86026 claims |
| Johnson & JohnsonXarelto | $15 | $8,85712 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 20th percentile of 28 hematology & oncology providers in South Dakota.
Other hematology & oncology in Sioux Falls
- Kelly McCaulSioux Falls$1.2M
- Roberto Ferro ValdesSioux Falls$142K
- Waqas JehangirSioux Falls$23K
- Steven PowellSioux Falls$13K
- Benjamin SolomonSioux Falls$5K
- Miroslaw MazurczakSioux Falls$2K
- Mark HuberSioux Falls$1K
- Ryan VacaSioux Falls$1K
- Michael McHaleSioux Falls$811
- Heidi McKeanSioux Falls$552
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.