Has Charles Machell, MD received payments from drug or device companies?

Yes. Drug and device makers reported $4,461 in general payments to Charles Machell, MD across 165 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Charles Machell, MD did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Charles Machell, MD come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Charles Machell, MD

Clinical Cardiac Electrophysiology · San Antonio, TXNPI 1245230507

Payments from drug & device makers

What this record shows

This record is dominated by food and beverage: $3,653 of the $4,461 with a category attached, or 81.9%. 14 manufacturers reported payments, led by Medtronic at 34.4% of the total. Reporting peaked in 2019 at $1,595 and has fallen 82.8% since, to $274 in 2025. That places this record below the midpoint for clinical cardiac electrophysiology clinicians in TX, where the typical reported total is $27,892.

$4,461in general payments, 2019–2025

Across 165 payments — averaging $27.03 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Medtronic$2K
ZOLL Respicardia, Inc.$912
Boston Scientific$723
Biotronik Inc.$396
Biosense Webster, Inc.$346
Abbott$306
plus $244 from 8 others

$31,208in research payments, 2019–2025

Across 27 payments — averaging $1155.85 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.

Abbott$28K
Biotronik Inc.$4K

What the payments were for

Travel & lodging$77917%
Food & beverage$3,65382%
Education$291%

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

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.

Company	Payments	Total
Medtronic(2 entities)	103	$1,533
ZOLL Respicardia, Inc.	3	$912
Boston Scientific	18	$723
Biotronik Inc.	9	$396
Biosense Webster, Inc.	11	$346
Abbott	7	$306
Novartis	3	$60
W. L. Gore & Associates, Inc.	3	$48
Johnson & Johnson	2	$44
Actelion Pharmaceuticals US, Inc.	2	$39
Bayer	1	$18
Cardiva Medical, Inc.	1	$16
Chiesi USA, Inc.	1	$14
ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)	1	$6

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

$4,461 in reported general payments places this provider in the 10th percentile of 233 clinical cardiac electrophysiology providers in Texas.

See all clinical cardiac electrophysiology providers in Texas →

Medicare billing

Part B allowed, 2024

$109,451

Medicare patients

344

Services billed

1,275

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

Drug	Claims	Cost to plans & patients
EliquisApixaban	73	$57,267
Flecainide Acetate	80	$3,586
SotalolSotalol Hcl	46	$663
Amiodarone Hcl	34	$544
Metoprolol Succinate	27	$406
Metoprolol Tartrate	25	$217
Carvedilol	19	$126

Paid to pharmacies, not to this prescriber.

Other clinical cardiac electrophysiology in San Antonio

Hemal NayakSan Antonio$285K
Michael DelaughterBedford$1.6M
Andrea NataleAustin$1.3M
Jason ZagrodzkyAustin$961K
Amin Al-AhmadAustin$771K
Dale YooMcKinney$585K
Rodney HortonAustin$553K
Jose Cuellar SilvaWebster$502K
Miguel ValderrabanoHouston$461K
Theodore TakataFort Worth$396K

See the full list for Texas →

Where these figures come from

Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
Identity: NPPES NPI Registry, July 2026.

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