RxDoctor Payments Data

Sitharam Nandigam, MD

Nephrology · Conyers, GANPI 1003096793

Payments from drug & device makers

$640in general payments, 2019–2025

Across 40 payments — averaging $16.00 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Vifor Pharma, Inc.$97
  • Amgen$96
  • AstraZeneca$89
  • Akebia Therapeutics Inc$81
  • Travere Therapeutics, Inc.$57
  • Daiichi Sankyo Inc.$44
  • plus $177 from 7 others

What the payments were for

  • Food & beverage$55887%
  • Education$8213%

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
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

$640 in reported general payments places this provider in the 30th percentile of 388 nephrology providers in Georgia.

See all nephrology providers in Georgia

Medicare billing

Part B allowed, 2024
$248,615
Medicare patients
453
Services billed
1,722

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
JardianceEmpagliflozin153$131,153
FarxigaDapagliflozin Propanediol90$90,505
VelphoroSucroferric Oxyhydroxide13$51,627
AuryxiaFerric Citrate33$51,252
RenvelaSevelamer Carbonate14$28,447
RayaldeeCalcifediol18$20,508
Sevelamer Carbonate92$19,216
ProsolParenteral Amino Acid 20% No.191$17,322
LokelmaSodium Zirconium Cyclosilicate16$16,237
Cinacalcet Hcl34$10,849
VeltassaPatiromer Calcium Sorbitex13$10,380
Calcitriol381$5,387
Nifedipine ErNifedipine223$4,197
Paricalcitol45$3,794
Midodrine Hcl38$3,015

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, Lokelma$89$106,742106 claims
Fresenius USA Marketing, Inc.Velphoro$38$51,62713 claims
Akebia Therapeutics IncAuryxia$81$51,25233 claims
OPKO Pharmaceuticals, LLCRayaldee$16$20,50818 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 30th percentile of 388 nephrology providers in Georgia.

Other nephrology in Conyers

See the full list for Georgia

Where these figures come from

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