Karen Jacks, MD
Hematology & Oncology · Las Vegas, NVNPI 1457577470
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 99.5% of the total across 304 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 35 manufacturers, the largest accounting for just 22.9% — the pattern of someone who eats at a lot of different presentations. 2025 is the largest year on record at $2,237, more than ten times the $11 reported in 2019. That places this record below the midpoint for hematology & oncology clinicians in NV, where the typical reported total is $9,657.
Across 304 payments — averaging $19.57 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Daiichi Sankyo Inc.$1K
- Exelixis Inc.$900
- Novartis$848
- Pfizer$507
- Merck$208
- Astellas Pharma US Inc$186
- plus $2K from 29 others
Across 43 payments — averaging $881.77 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$30K
- Regeneron$5K
- Genentech, Inc.$3K
What the payments were for
- Food & beverage$5,91899%
- Education$301%
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 |
|---|---|---|
| Daiichi Sankyo Inc. | 104 | $1,360 |
| Exelixis Inc. | 28 | $900 |
| Novartis | 39 | $848 |
| Pfizer | 30 | $507 |
| Merck | 8 | $208 |
| Astellas Pharma US Inc | 7 | $186 |
| AstraZeneca(2 entities) | 9 | $178 |
| Bristol Myers Squibb | 7 | $153 |
| Sirtex Medical Inc | 1 | $146 |
| Beigene USA, Inc. | 5 | $140 |
| E.r. Squibb & Sons, L.L.C. | 6 | $136 |
| Tempus AI, Inc | 6 | $130 |
| GSK | 5 | $109 |
| Johnson & Johnson(2 entities) | 6 | $108 |
| Stemline Therapeutics Inc. | 6 | $105 |
| EMD Serono, Inc. | 5 | $98 |
| Array Biopharma Inc | 6 | $79 |
| Amgen | 4 | $75 |
| Beone Medicines USA, Inc. | 3 | $68 |
| Sanofi | 2 | $53 |
| AbbVie | 2 | $49 |
| Eisai Inc. | 2 | $40 |
| Sun Pharmaceutical Industries Inc. | 1 | $37 |
| Boehringer Ingelheim | 1 | $32 |
| Seagen Inc. | 1 | $24 |
| Incyte Corporation | 1 | $23 |
| Ipsen Biopharmaceuticals, Inc | 1 | $23 |
| Taiho Oncology, Inc. | 1 | $21 |
| Servier Pharmaceuticals LLC | 1 | $20 |
| Mirati Therapeutics, Inc. | 1 | $17 |
| Springworks Therapeutics, Inc. | 1 | $16 |
| Bayer | 1 | $15 |
| Puma Biotechnology, Inc. | 1 | $15 |
| Accord Healthcare, Inc. | 1 | $15 |
| Gilead | 1 | $12 |
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.
- SIR-Spheres Microspheres$146
- Enhertu$116
How this compares
$5,948 in reported general payments places this provider in the 35th 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 |
|---|---|---|
| IbrancePalbociclib | 80 | $1,232,289 |
| ImbruvicaIbrutinib | 14 | $228,372 |
| RevlimidLenalidomide | 15 | $182,992 |
| EliquisApixaban | 52 | $47,100 |
| XareltoRivaroxaban | 15 | $21,158 |
| ZarxioFilgrastim-Sndz | 14 | $16,988 |
| Imatinib Mesylate | 11 | $9,132 |
| VeozahFezolinetant | 15 | $7,994 |
| Letrozole | 343 | $6,583 |
| Anastrozole | 129 | $2,312 |
| Exemestane | 63 | $2,115 |
| Tamoxifen Citrate | 73 | $1,302 |
| Ibandronate Sodium | 21 | $858 |
| Dexamethasone | 36 | $719 |
| Gabapentin | 62 | $698 |
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 |
|---|---|---|
| PfizerIbrance, Eliquis | $507 | $1,279,389132 claims |
| Bristol Myers SquibbRevlimid | $153 | $182,99215 claims |
| Johnson & JohnsonXarelto | $108 | $21,15815 claims |
| Astellas Pharma US IncVeozah | $186 | $7,99415 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 35th 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.