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David Chism, MD

Medical Oncology · Knoxville, TNNPI 1972805414

Payments from drug & device makers

$1,224,460in general payments, 2019–2025

Across 281 payments — averaging $4357.51 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Merck$410K
  • AstraZeneca$153K
  • Genentech, Inc.$149K
  • AbbVie$105K
  • Pfizer$84K
  • Gilead$70K
  • plus $254K from 39 others

What the payments were for

  • Consulting fees$30,23367%
  • Speaking & faculty fees$8,50519%
  • Travel & lodging$3,5038%
  • Food & beverage$3,1197%
  • Education$840%

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

$1,224,460 in reported general payments places this provider in the 75th percentile of 101 medical oncology providers in Tennessee.

See all medical oncology providers in Tennessee

Medicare billing

Part B allowed, 2024
$82,645
Medicare patients
250
Services billed
1,782

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
XtandiEnzalutamide37$534,610
FotivdaTivozanib Hcl14$427,927
OjjaaraMomelotinib Dihydrochloride12$322,796
PomalystPomalidomide13$281,975
NinlaroIxazomib Citrate18$229,020
CalquenceAcalabrutinib Maleate16$198,668
VerzenioAbemaciclib12$180,021
VenclextaVenetoclax11$168,051
Abiraterone Acetate29$63,004
EliquisApixaban60$40,055
Everolimus15$28,175
Exemestane14$2,495
Anastrozole154$1,859
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen28$1,213
Oxycodone Hcl57$1,135

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
Astellas Pharma US IncXtandi$41$534,61037 claims
GSKOjjaara$140$322,79612 claims
E.r. Squibb & Sons, L.L.C.Pomalyst$19,025$281,97513 claims
Takeda Pharmaceuticals U.S.A., Inc.Ninlaro$20,665$229,02018 claims
AstraZenecaCalquence$153,453$198,66816 claims
Lilly USA, LLCVerzenio$24$180,02112 claims
AbbVieVenclexta$104,690$168,05111 claims
PfizerEliquis$84,108$40,05560 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 75th percentile of 101 medical oncology providers in Tennessee.

Other medical oncology in Knoxville

See the full list for Tennessee

Where these figures come from

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