RxDoctor Payments Data

Michael Chambers, MD

Infectious Disease · Nashville, TNNPI 1194259523

Payments from drug & device makers

$623in general payments, 2019–2025

Across 32 payments — averaging $19.47 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Viiv Healthcare Company$163
  • Melinta Therapeutics, LLC$97
  • AbbVie$91
  • Merck$76
  • La Jolla Pharmaceutical Company$54
  • Gilead$30
  • plus $112 from 5 others

What the payments were for

  • Food & beverage$623100%

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

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.

How this compares

$623 in reported general payments places this provider in the 55th percentile of 156 infectious disease providers in Tennessee.

See all infectious disease providers in Tennessee

Medicare billing

Part B allowed, 2024
$2,695,211
Medicare patients
886
Services billed
398,913

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
Daptomycin60$86,797
BiktarvyBictegrav/Emtricit/Tenofov Ala13$48,029
ErtapenemErtapenem Sodium30$13,221
MicafunginMicafungin Sodium12$4,380
Cefdinir38$1,875
Doxycycline Hyclate42$1,560
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav27$1,057
CeftriaxoneCeftriaxone Sodium19$910
Doxycycline Monohydrate17$586
Cephalexin13$193
Levofloxacin24$170
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim18$119
Fluconazole12$76
Sodium Chloride0.9 % Sodium Chloride13$76

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
GileadBiktarvy$30$48,02913 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 156 infectious disease providers in Tennessee.

Other infectious disease in Nashville

See the full list for Tennessee

Where these figures come from

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