RxDoctor Payments Data

Deewan Deewan, MD

Nephrology · Columbia, SCNPI 1811292055

Payments from drug & device makers

$3,323in general payments, 2019–2025

Across 169 payments — averaging $19.66 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Amgen$953
  • Mallinckrodt Hospital Products Inc.$370
  • Bayer$336
  • OPKO Pharmaceuticals, LLC$284
  • Otsuka America Pharmaceutical, Inc.$243
  • Calliditas Therapeutics US Inc.$242
  • plus $896 from 16 others

What the payments were for

  • Food & beverage$3,13994%
  • Education$1846%

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

$3,323 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
$294,417
Medicare patients
503
Services billed
2,188

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 Propanediol40$33,532
Calcium Acetate33$6,219
Cinacalcet Hcl43$4,374
Calcitriol131$3,468
Sevelamer Carbonate31$3,031
ProsolParenteral Amino Acid 20% No.115$2,602
Midodrine Hcl27$2,552
Allopurinol218$2,203
Doxazosin Mesylate74$1,752
Torsemide42$1,365
Nifedipine ErNifedipine37$917
Febuxostat14$803
Losartan Potassium40$671
Potassium Chloride27$633
Carvedilol52$485

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$97$33,53240 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 Columbia

See the full list for South Carolina

Where these figures come from

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