RxDoctor Payments Data

Nikolaos Diakos, MD

Interventional Cardiology · Houston, TXNPI 1659791507

Payments from drug & device makers

$7,664in general payments, 2019–2025

Across 212 payments — averaging $36.15 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Boston Scientific$2K
  • Medtronic$783
  • Novartis$685
  • Abbott$576
  • Novo Nordisk$470
  • Cardiovascular Systems Inc.$433
  • plus $3K from 35 others

What the payments were for

  • Travel & lodging$1,35618%
  • Food & beverage$6,11080%
  • Education$1983%

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.

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

$7,664 in reported general payments places this provider in the 35th percentile of 686 interventional cardiology providers in Texas.

See all interventional cardiology providers in Texas

Medicare billing

Part B allowed, 2024
$88,140
Medicare patients
159
Services billed
991

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
EliquisApixaban38$42,795
JardianceEmpagliflozin29$41,894
EntrestoSacubitril/Valsartan18$25,417
Metoprolol Succinate69$1,165
Ezetimibe25$905
Atorvastatin Calcium72$720
Losartan Potassium42$577
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15$511
Amlodipine Besylate61$481
Rosuvastatin Calcium20$399
Pravastatin Sodium24$333
Carvedilol24$282
Spironolactone25$238
Pantoprazole Sodium19$191
Furosemide28$190

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
PfizerEliquis$161$42,79538 claims
Boehringer IngelheimJardiance$211$41,89429 claims
NovartisEntresto$685$25,41718 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 35th percentile of 686 interventional cardiology providers in Texas.

Other interventional cardiology in Houston

See the full list for Texas

Where these figures come from

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