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Dmitriy Zak, MD

Hematology & Oncology · Mountain Home, ARNPI 1548371289

Payments from drug & device makers

$8,328in general payments, 2019–2025

Across 334 payments — averaging $24.94 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • AstraZeneca$4K
  • E.r. Squibb & Sons, L.L.C.$433
  • Merck$334
  • Daiichi Sankyo Inc.$288
  • Johnson & Johnson$283
  • Pfizer$243
  • plus $3K from 50 others

What the payments were for

  • Consulting fees$2,72533%
  • Travel & lodging$3234%
  • Food & beverage$5,13762%
  • Education$1432%

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

19
20
21
22
23
24
25

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.

How this compares

$8,328 in reported general payments places this provider in the 50th percentile of 92 hematology & oncology providers in Arkansas.

See all hematology & oncology providers in Arkansas

Medicare billing

Part B allowed, 2024
$8,074,131
Medicare patients
758
Services billed
363,433

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

DrugClaimsCost to plans & patients
AyvakitAvapritinib12$439,119
VerzenioAbemaciclib18$264,667
XtandiEnzalutamide21$226,182
CalquenceAcalabrutinib Maleate14$224,759
ImbruvicaIbrutinib13$200,253
CabometyxCabozantinib S-Malate12$153,861
RevlimidLenalidomide13$153,723
EliquisApixaban80$49,865
AbrysvoRsv Vacc, Pref A And Pref B/Pf32$9,568
Fentanyl87$8,199
Scopolamine75$6,801
CreonLipase/Protease/Amylase18$5,879
Ondansetron Hcl127$4,586
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen150$4,288
Anastrozole174$2,820

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.

CompanyPaid to this providerPart D cost of their drugs
Lilly USA, LLCVerzenio$238$264,66718 claims
Astellas Pharma US IncXtandi$28$226,18221 claims
AstraZenecaCalquence$3,509$224,75914 claims
Pharmacyclics LLC, An Abbvie CompanyImbruvica$58$200,25313 claims
Exelixis Inc.Cabometyx$158$153,86112 claims
Bristol Myers SquibbRevlimid$147$153,72313 claims
PfizerEliquis, Abrysvo$243$59,433112 claims
AbbVieCreon$51$5,87918 claims
Teva Pharmaceuticals USA, Inc.Acyclovir$12$67166 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 50th percentile of 92 hematology & oncology providers in Arkansas.

Other hematology & oncology in Mountain Home

See the full list for Arkansas

Where these figures come from

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