RxDoctor Payments Data

Sathiyendran Poobalasingham, MD

Nephrology · Kingsport, TNNPI 1639210222

Payments from drug & device makers

$1,132in general payments, 2019–2025

Across 57 payments — averaging $19.85 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Fresenius USA Marketing, Inc.$170
  • Amgen$153
  • Mallinckrodt Hospital Products Inc.$146
  • Travere Therapeutics, Inc.$140
  • AstraZeneca$138
  • Vifor Pharma, Inc.$90
  • plus $293 from 8 others

What the payments were for

  • Food & beverage$93182%
  • Education$20118%

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.

How this compares

$1,132 in reported general payments places this provider in the 40th percentile of 229 nephrology providers in Tennessee.

See all nephrology providers in Tennessee

Medicare billing

Part B allowed, 2024
$142,241
Medicare patients
463
Services billed
1,448

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
VelphoroSucroferric Oxyhydroxide23$79,799
AuryxiaFerric Citrate31$66,152
XphozahTenapanor Hcl16$63,675
FarxigaDapagliflozin Propanediol56$35,123
JardianceEmpagliflozin44$31,047
VeltassaPatiromer Calcium Sorbitex26$19,072
EliquisApixaban25$15,411
LokelmaSodium Zirconium Cyclosilicate19$12,916
SpsSodium Polystyrene Sulfon/Sorb13$12,217
Sevelamer Carbonate84$10,973
NeoralCyclosporine, Modified12$5,898
Lanthanum Carbonate11$3,618
Bumetanide105$2,641
Midodrine Hcl25$2,419
Calcitriol97$1,417

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
Fresenius USA Marketing, Inc.Velphoro$170$79,79923 claims
Akebia Therapeutics IncAuryxia$85$66,15231 claims
AstraZenecaFarxiga, Lokelma$138$48,03975 claims
Boehringer IngelheimJardiance$15$31,04744 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 229 nephrology providers in Tennessee.

Other nephrology in Kingsport

See the full list for Tennessee

Where these figures come from

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