RxDoctor Payments Data

Gajapathiraju Chamarthi, MD

Nephrology · Mobile, ALNPI 1902175649

Payments from drug & device makers

$1,897in general payments, 2019–2025

Across 85 payments — averaging $22.32 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Amgen$844
  • AstraZeneca$375
  • Calliditas Therapeutics US Inc.$300
  • Travere Therapeutics, Inc.$68
  • Akebia Therapeutics Inc$47
  • Bayer$44
  • plus $218 from 8 others

What the payments were for

  • Food & beverage$1,87699%
  • Education$201%

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
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

$1,897 in reported general payments places this provider in the 45th percentile of 164 nephrology providers in Alabama.

See all nephrology providers in Alabama

Medicare billing

Part B allowed, 2024
$137,942
Medicare patients
311
Services billed
1,398

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 Oxyhydroxide13$56,035
FarxigaDapagliflozin Propanediol38$29,210
AuryxiaFerric Citrate18$28,322
JardianceEmpagliflozin24$16,199
Sevelamer Carbonate19$3,673
Losartan Potassium64$668
Torsemide19$431
Nifedipine ErNifedipine11$337
Amlodipine Besylate53$330
Hydralazine Hcl12$274
Calcitriol13$245
Furosemide34$144
Potassium Chloride13$138
Carvedilol12$128
Allopurinol14$46

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
AstraZenecaFarxiga$375$29,21038 claims
Akebia Therapeutics IncAuryxia$47$28,32218 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 45th percentile of 164 nephrology providers in Alabama.

Other nephrology in Mobile

See the full list for Alabama

Where these figures come from

Is this you, or does something look wrong? →