Ammar Yousif, MD
Hematology & Oncology · Las Vegas, NVNPI 1457745531
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $18,387 of the $22,237 with a category attached, or 82.7%. It is spread thinly across 60 manufacturers, the largest accounting for just 15.0% — the pattern of someone who eats at a lot of different presentations.
Across 987 payments — averaging $22.53 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novartis$3K
- Incyte Corporation$1K
- Johnson & Johnson$1K
- AstraZeneca$1K
- Merck$896
- Daiichi Sankyo Inc.$866
- plus $13K from 54 others
Across 2 payments — averaging $11,157 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.
- Merck$22K
What the payments were for
- Food & beverage$18,38783%
- Education$1,5387%
- Other$2,31210%
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.
- CELLSEARCH$166
- SIR-Spheres Microspheres$146
- ABECMA$125
- JAKAFI$125
- Erleada$117
How this compares
$22,237 in reported general payments places this provider in the 70th percentile of 82 hematology & oncology providers in Nevada.
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 |
|---|---|---|
| RevlimidLenalidomide | 33 | $523,575 |
| KeytrudaPembrolizumab | 35 | $383,366 |
| XtandiEnzalutamide | 29 | $371,081 |
| BrukinsaZanubrutinib | 20 | $306,504 |
| KisqaliRibociclib Succinate | 15 | $265,914 |
| ImbruvicaIbrutinib | 14 | $229,231 |
| Lenalidomide | 15 | $208,498 |
| AlecensaAlectinib Hcl | 11 | $208,003 |
| VerzenioAbemaciclib | 12 | $188,562 |
| CalquenceAcalabrutinib Maleate | 15 | $176,547 |
| VenclextaVenetoclax | 11 | $119,462 |
| EliquisApixaban | 68 | $52,084 |
| XgevaDenosumab | 12 | $39,204 |
| XareltoRivaroxaban | 50 | $36,239 |
| PrivigenImmun Glob G(Igg)/Pro/Iga 0-50 | 12 | $24,565 |
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 |
|---|---|---|
| Bristol Myers SquibbRevlimid | $813 | $523,57533 claims |
| MerckKeytruda | $896 | $383,36635 claims |
| Astellas Pharma US IncXtandi | $847 | $371,08129 claims |
| Beigene USA, Inc.Brukinsa | $488 | $306,50420 claims |
| NovartisKisqali | $3,324 | $265,91415 claims |
| Pharmacyclics LLC, An Abbvie CompanyImbruvica | $78 | $229,23114 claims |
| Genentech USA, Inc.Alecensa | $319 | $208,00311 claims |
| Lilly USA, LLCVerzenio | $227 | $188,56212 claims |
| AstraZenecaCalquence | $1,112 | $176,54715 claims |
| AbbVieVenclexta | $145 | $119,46211 claims |
| PfizerEliquis | $615 | $52,08468 claims |
| AmgenXgeva | $729 | $39,20412 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 70th percentile of 82 hematology & oncology providers in Nevada.
Other hematology & oncology in Las Vegas
- Nicholas VogelzangLas Vegas$397K
- Wolfram SamlowskiLas Vegas$235K
- Oscar GoodmanLas Vegas$211K
- Aaron GoodmanLas Vegas$134K
- Anuradha ThummalaLas Vegas$128K
- Ann WiermanLas Vegas$81K
- Heather AllenLas Vegas$78K
- Holavanahalli Keshava-PrasadLas Vegas$67K
- Edgardo FaylonaLas Vegas$53K
- Khawaja JahangirLas Vegas$50K
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.