RxDoctor Payments Data

Charles Walker, MD

Pain Medicine · Paris, TNNPI 1144360785

Payments from drug & device makers

$632in general payments, 2019–2025

Across 40 payments — averaging $15.81 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Collegium Pharmaceutical, Inc.$240
  • Biodelivery Sciences International, Inc.$63
  • Daiichi Sankyo Inc.$58
  • Scilex Pharmaceuticals Inc.$48
  • Boston Scientific$44
  • Protega Pharmaceutials Inc$39
  • plus $139 from 7 others

What the payments were for

  • Food & beverage$632100%

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
23
24

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

$632 in reported general payments places this provider in the 25th percentile of 112 pain medicine providers in Tennessee.

See all pain medicine providers in Tennessee

Medicare billing

Part B allowed, 2024
$91,395
Medicare patients
146
Services billed
2,565

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
OxycontinOxycodone Hcl58$116,520
Xtampza ErOxycodone Myristate31$34,768
Hysingla ErHydrocodone Bitartrate44$24,067
Fentanyl190$23,438
Oxymorphone Hcl ErOxymorphone Hcl31$23,149
Nurtec OdtRimegepant Sulfate12$21,530
Buprenorphine32$11,488
BelbucaBuprenorphine Hcl11$9,633
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen307$9,622
MovantikNaloxegol Oxalate19$9,456
Tizanidine Hcl485$8,876
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen260$8,353
Morphine Sulfate ErMorphine Sulfate241$7,614
Oxycodone Hcl306$7,429
Methocarbamol37$7,384

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
Collegium Pharmaceutical, Inc.Xtampza Er, Belbuca$240$44,40142 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 25th percentile of 112 pain medicine providers in Tennessee.

Other pain medicine in Paris

See the full list for Tennessee

Where these figures come from

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