RxDoctor Payments Data

Chitra Nathan, MD

Nephrology · Greenville, SCNPI 1013119288

Payments from drug & device makers

$3,684in general payments, 2019–2025

Across 186 payments — averaging $19.81 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Amgen$560
  • AstraZeneca$427
  • Calliditas Therapeutics US Inc.$316
  • Otsuka America Pharmaceutical, Inc.$299
  • Mallinckrodt Enterprises LLC$235
  • Bayer$231
  • plus $2K from 21 others

What the payments were for

  • Food & beverage$3,52096%
  • Education$1644%

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

$3,684 in reported general payments places this provider in the 60th percentile of 180 nephrology providers in South Carolina.

See all nephrology providers in South Carolina

Medicare billing

Part B allowed, 2024
$145,898
Medicare patients
412
Services billed
2,071

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
FarxigaDapagliflozin Propanediol47$44,487
JardianceEmpagliflozin22$28,395
Famotidine118$1,022
Calcium Acetate28$983
Losartan Potassium84$689
Torsemide38$577
Metoprolol Succinate55$512
Lisinopril87$391
Calcitriol20$212
Amlodipine Besylate47$138
Furosemide42$127
Clonidine Hcl11$118
Tamsulosin Hcl11$106
Gemfibrozil11$99
Escitalopram Oxalate14$79

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$427$44,48747 claims
Boehringer IngelheimJardiance$90$28,39522 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 60th percentile of 180 nephrology providers in South Carolina.

Other nephrology in Greenville

See the full list for South Carolina

Where these figures come from

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