RxDoctor Payments Data

Nathan Schrock, MD

Hematology & Oncology · Knoxville, TNNPI 1679573372

Payments from drug & device makers

$27,588in general payments, 2019–2025

Across 1,380 payments — averaging $19.99 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • E.r. Squibb & Sons, L.L.C.$3K
  • AstraZeneca$2K
  • Bristol Myers Squibb$2K
  • Novartis$2K
  • Seagen Inc.$2K
  • Genentech USA, Inc.$1K
  • plus $15K from 54 others

What the payments were for

  • Food & beverage$26,55196%
  • Education$1,0364%

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.

CompanyPaymentsTotal
E.r. Squibb & Sons, L.L.C.200$3,343
AstraZeneca(2 entities)97$2,406
Bristol Myers Squibb125$1,651
Novartis89$1,630
Seagen Inc.57$1,544
Genentech USA, Inc.80$1,486
Johnson & Johnson53$1,270
Pfizer64$1,048
Merck56$1,020
Incyte Corporation43$1,009
GSK35$719
Gilead(2 entities)35$708
Daiichi Sankyo Inc.24$611
Bayer31$599
Eisai Inc.25$578
Amgen30$564
Astellas Pharma US Inc22$536
Sanofi25$518
Takeda Pharmaceuticals U.S.A., Inc.23$475
AbbVie19$474
Regeneron Healthcare Solutions, Inc.16$425
Lilly USA, LLC20$396
AVEO Pharmaceuticals, Inc.13$393
Exelixis Inc.20$384
Beigene USA, Inc.15$369
EMD Serono, Inc.16$298
Array Biopharma Inc14$278
Puma Biotechnology, Inc.12$242
Ipsen Biopharmaceuticals, Inc12$238
Pharmacosmos Therapeutics Inc.11$195
Boehringer Ingelheim7$157
Taiho Oncology, Inc.9$151
Jazz Pharmaceuticals Inc.7$144
Caris MPI, Inc.2$135
Kyowa Kirin, Inc.6$127
Pharmacyclics LLC, An Abbvie Company8$127
Sanofi-aventis U.S. LLC1$100
Tempus AI, Inc3$98
Acceleron Pharma, Inc.5$97
Sun Pharmaceutical Industries Inc.4$95
Mirati Therapeutics, Inc.4$95
AMAG Pharmaceuticals, Inc.4$73
Morphosys, US Inc.3$66
Epizyme, Inc.3$65
Iovance Biotherapeutics, Inc.3$61
Deciphera Pharmaceuticals Inc.3$58
Sobi, Inc3$57
Karyopharm Therapeutics Inc.2$57
Genentech, Inc.1$48
Stemline Therapeutics Inc.2$45
Blueprint Medicines Corporation2$42
Apellis Pharmaceuticals, Inc.2$39
Agios Pharmaceuticals, Inc.2$36
Verastem, Inc.2$32
Dova Pharmaceuticals2$24
TG Therapeutics, Inc.1$24
Tesaro, Inc.1$23
Alnylam Pharmaceuticals Inc.1$22
Pharmaessentia USA Corporation1$20
Foundation Medicine, Inc.1$18

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

$27,588 in reported general payments places this provider in the 55th percentile of 251 hematology & oncology providers in Tennessee.

See all hematology & oncology providers in Tennessee

Medicare billing

Part B allowed, 2024
$66,634
Medicare patients
329
Services billed
689

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
PomalystPomalidomide21$477,175
ImbruvicaIbrutinib29$437,415
JakafiRuxolitinib Phosphate22$375,770
Lenalidomide25$257,014
RevlimidLenalidomide16$232,076
TagrissoOsimertinib Mesylate14$224,033
SprycelDasatinib11$103,448
EliquisApixaban88$68,442
Abiraterone Acetate19$11,539
Anagrelide Hcl26$4,261
Exemestane25$3,011
Prochlorperazine Maleate80$2,042
Anastrozole105$1,721
Imatinib Mesylate14$1,570
Ondansetron Hcl93$1,297

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
E.r. Squibb & Sons, L.L.C.Pomalyst, Sprycel$3,343$580,62332 claims
Pharmacyclics LLC, An Abbvie CompanyImbruvica$127$437,41529 claims
Incyte CorporationJakafi$1,009$375,77022 claims
Bristol Myers SquibbRevlimid$1,651$232,07616 claims
AstraZenecaTagrisso$2,406$224,03314 claims
PfizerEliquis$1,048$68,44288 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 55th percentile of 251 hematology & oncology providers in Tennessee.

Other hematology & oncology in Knoxville

See the full list for Tennessee

Where these figures come from

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