RxDoctor Payments Data

Olga Zarkh, MD

Internal Medicine · Buffalo Grove, ILNPI 1043282320

Payments from drug & device makers

$102in general payments, 2019–2025

Across 7 payments — averaging $14.52 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • AbbVie$41
  • Lilly USA, LLC$19
  • Boehringer Ingelheim$15
  • Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$14
  • AstraZeneca$13

What the payments were for

  • Food & beverage$8785%
  • Education$1515%

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

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.

How this compares

$102 in reported general payments places this provider in the 40th percentile of 5,182 internal medicine providers in Illinois.

See all internal medicine providers in Illinois

Medicare billing

Part B allowed, 2024
$338,236
Medicare patients
259
Services billed
5,938

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
OzempicSemaglutide130$128,324
EliquisApixaban166$92,460
LinzessLinaclotide128$78,098
CreonLipase/Protease/Amylase104$68,279
VascepaIcosapent Ethyl159$56,986
FarxigaDapagliflozin Propanediol84$51,465
MyrbetriqMirabegron83$38,399
JanumetSitagliptin Phos/Metformin Hcl51$30,914
ZenpepLipase/Protease/Amylase34$30,166
MounjaroTirzepatide28$29,083
TradjentaLinagliptin68$23,115
Janumet XrSitagliptin Phos/Metformin Hcl34$18,086
Lidocaine146$15,537
TrulicityDulaglutide14$13,547
JardianceEmpagliflozin13$12,258

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
AbbVieLinzess, Creon, Synthroid, Combigan$41$155,489372 claims
AstraZenecaFarxiga$13$51,46584 claims
Boehringer IngelheimTradjenta, Jardiance, Jentadueto$15$46,441102 claims
Lilly USA, LLCMounjaro, Trulicity$19$42,63042 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 40th percentile of 5,182 internal medicine providers in Illinois.

Other internal medicine in Buffalo Grove

See the full list for Illinois

Where these figures come from

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